Author: vanwanderadmin

  • Where to camp by month, Western US and Alaska

    A list of camping locations by month that aim to maintain 65 to 75 degree day time high temperatures. This is deep research by chatgpt, so your mileage may vary.

    January – Mild Desert Sunsets and Coastal Breezes

    • Death Valley National Park (CA)Desert. Daytime highs average around 67°F in January, making this the ideal time to explore Death Valley’s otherworldly salt flats and colorful badlands without the extreme heat. Camp at Furnace Creek or Mesquite Spring (accessible via paved roads) and enjoy hiking Golden Canyon or the Mesquite Flat Sand Dunes. Scenic vistas abound (Dante’s View, Zabriskie Point), and winter’s mild weather is perfect for hiking. Nights are cool (around 40°F), offering crystal-clear stargazing in this certified Dark Sky Park. No 4×4 needed – main park roads and campgrounds are van-accessible.
    • Anza-Borrego Desert State Park (CA)Desert. Expect sunny days with average highs ~72°F in the Borrego Springs area. This expansive park offers dispersed camping (along dirt but 2WD-friendly roads) amid open desert, slot canyons, and spring-fed palm oases. Hike the Palm Canyon Trail to see bighorn sheep and an oasis, or explore the badlands by mountain bike on jeep trails. Scenic viewpoints like Font’s Point overlook colorful badlands. If winter rains came, you might catch early wildflowers carpeting the sand. Borrego’s clear skies are great for night photography and stargazing.
    • Saguaro National Park (AZ)Desert. With highs around 66°F in January, Tucson’s saguaro-studded landscapes are comfortable for camping and hiking. Both the west (Tucson Mountain) and east (Rincon Mountain) districts have campgrounds nearby (e.g. Gilbert Ray Campground in Tucson Mountain Park is van-accessible) and endless hiking trails through towering cacti forests. Don’t miss the Valley View or King Canyon trails for scenic sunset vistas over the Sonoran Desert. Mountain biking is available on select dirt roads, and nearby Tucson city offers bike rentals. The crisp winter weather is ideal for daytime hikes among the saguaros, with cool nights for campfires (nights ~40°F).
    • Organ Pipe Cactus National Monument (AZ)Desert. This remote park on the Arizona-Mexico border boasts similar winter weather (60s by day) and groves of majestic organ pipe cacti. Twin Peaks Campground (paved access) welcomes vans and offers desert views and flush toilets. Enjoy the scenic Ajo Mountain Drive (a graded dirt loop usually passable in a van) and hiking trails like Arch Canyon. Average highs in mid-winter are in the upper 60s, climbing toward 70°F, perfect for exploring the rugged Sonoran landscape. Bonus: the international biosphere reserve status means exceptional night skies for stargazing.
    • Lake Havasu & Colorado River (AZ/CA)Desert/Lake. Mild winter weather (daytime highs ~65°F) makes the Colorado River region a delight in January. Several van-accessible campgrounds line the river and Lake Havasu – for example, Lake Havasu State Park and Cattail Cove State Park on the Arizona side offer campsites right by the water. Enjoy scenic boating or kayaking on the clear blue river (many campgrounds have boat launches), hike the surrounding low desert hills (try SARA’s Crack trail near Lake Havasu for a fun slot canyon hike), or bike along waterfront paths. The London Bridge in Lake Havasu City is a quirky sight, and the lake’s beaches provide lovely sunset views framed by rugged mountains.
    • Point Mugu State Park (CA)Coastal. Located on the Southern California coast near Malibu, this park offers a mix of beachfront camping and mountain trail access with pleasantly cool weather. January highs average about 65°F, so you can comfortably hike the Ray Miller Trail in the Santa Monica Mountains for ocean panoramas, then relax on Sycamore Cove Beach at the campground’s doorstep. Surf fishing, tide pooling, and kayaking (bring your own) are popular here when seas are calm. Vans can easily reach the beachside and canyon campgrounds just off the Pacific Coast Highway. Enjoy ocean sunsets and possibly spot migrating gray whales offshore in winter, all without summer’s crowds.

    February – Sunny Skies in the Southwest

    • Valley of Fire State Park (NV)Desert. Just an hour from Las Vegas, Valley of Fire’s red sandstone formations glow under mild winter sun. February days reach the low to mid-60s °F, ideal for hiking among vibrant rock fins and petroglyphs. The park’s main campground (Atlatl Rock) is paved-access and suitable for vans, nestled amid giant boulders. Don’t miss the Fire Wave Trail or White Domes loop for classic scenery. Nights can drop to the 40s, but clear skies mean brilliant stars. With comfortable temps and few crowds, you can freely explore landmarks like Elephant Rock and Arch Rock – all accessible via paved roads.
    • Lost Dutchman State Park (AZ)Desert. Set at the foot of the Superstition Mountains east of Phoenix, this park offers front-row views of towering volcanic peaks. February highs average ~70–71°F, perfect for tackling the Siphon Draw Trail or a mountain bike ride on the scenic Jacob’s Crosscut trail along the mountain base. The campground (reachable by paved road) is RV- and van-friendly, with campsites scattered among palo verde and mesquite trees. Enjoy sunrise or sunset as the Superstition cliffs turn gold and red. Nearby in Apache Junction you’ll find water and supplies, and you can even take a day trip to Canyon Lake for kayaking in the desert (boat rentals available) while the weather is cool.
    • Joshua Tree National Park (CA)Desert. By late winter, days warm toward the mid-60s in Joshua Tree (February average highs ~64°F). It’s an excellent time to camp among the iconic Joshua trees and jumbo boulders. All park campgrounds are first-come, first-served in winter and reachable by paved roads (try Hidden Valley or Jumbo Rocks for central locations amid the rock piles – no 4×4 needed). Hike the Hidden Valley Loop or Ryan Mountain in comfortable weather, or enjoy world-class rock climbing if so inclined. Mountain bikers can explore the network of dirt roads (e.g. Queen Valley Road) on fat tires. The crisp, dry air also means expansive desert views – you can see snow-capped Mount San Gorgonio from high points. Pack layers for 40°F nights under an incredibly starry sky.
    • Catalina State Park (AZ)Desert/Mountain. North of Tucson, Catalina State Park sits at the base of the Santa Catalina Mountains and offers both desert and foothill ecosystems. February days reach the upper 60s to ~70°F, wonderful for hiking the Canyon Loop or Romero Canyon Trail which lead to seasonal waterfalls and pools. The campground is paved and set among giant saguaros and mesquite trees; it’s van-accessible and even has showers. You’ll have stunning views of 9,000-foot Mount Lemmon towering above. Mountain bikers can hit the 50-Year Trail network adjacent to the park, known for its scenic rolling singletrack through Sonoran vegetation. With mild weather and early wildflowers starting to bloom, Catalina SP is a winter favorite for both relaxation and outdoor adventure just minutes from Tucson.
    • San Diego Coast – Carlsbad State Beach (CA)Coastal. For a change of scenery, head to San Diego’s north county coast where February afternoons average around 65–66°F. Carlsbad State Beach offers bluff-top camping by the ocean, accessible to vans via paved roads. Enjoy a beach day with a light jacket – you can stroll the sandy shore, explore tide pools at low tide, or even rent a kayak or paddleboard in the calm Agua Hedionda Lagoon nearby. This area also features paved coastal bike trails with ocean views (the campground connects to a bike path leading into Carlsbad Village). Winter sunsets over the Pacific are spectacular, and you might catch the migration of gray whales just offshore. Nights are in the 50s, quite mild, so you can fall asleep to the sound of crashing waves in comfortable conditions.

    March – Spring in the Air (Deserts, Red Rocks & Coast)

    • Sedona & Red Rock State Park (AZ)Desert/Canyon. Spring begins in Sedona with average highs around 65°F in March, bringing comfortable days to hike among the famous red rock formations. Camp at Manzanita Campground (oak-shaded and van-friendly) or Dead Horse Ranch State Park in nearby Cottonwood. From there, tackle trails like Cathedral Rock or Devil’s Bridge – the mild temps are perfect for these steep hikes. Sedona also boasts renowned mountain biking; try the Bell Rock Trail or Long Canyon trail for stellar views of buttes and spires. In March the desert trees bud out and wildflowers like desert paintbrush start to appear along trails. Kayaking is possible on the Verde River if water levels permit, or you can rent a mountain bike in town – Sedona is a cyclist’s paradise with dozens of trail options.
    • Morro Bay State Park (CA)Coastal. On California’s central coast, Morro Bay offers a mix of ocean and estuary adventures. March days reach the low to mid-60s°F. The state park campground (open to vans/RVs) sits near the bayshore with views of the landmark Morro Rock. Launch a kayak or canoe in the calm bay – there are rentals nearby – to paddle among sea otters and birds in the salt marsh. On land, hike the park’s Cerro Cabrillo Trail or the Morro Bay Estuary boardwalk for birdwatching (herons, egrets, and migratory species abound in spring). Mountain bikers can head a few miles inland to Montaña de Oro State Park, which has bluff trails and sandy fire roads with ocean views. March can bring the tail end of the rainy season, so the surrounding hills are green and often dotted with wildflowers, making scenic drives (like Hwy 1 up to Big Sur) especially beautiful.
    • Snow Canyon State Park (UT)Desert. Tucked near St. George in Utah’s southwest corner, Snow Canyon showcases red and white Navajo sandstone cliffs, petrified dunes, and lava flows – like a mini Zion without the crowds. March highs average ~68°F in St. George, providing excellent hiking weather. The park’s campground (paved access) sits beneath sandstone walls and allows vans. Hike the Johnson Canyon Trail to see a spring and arch, scramble on the Petrified Dunes, or bike the 18-mile paved trail connecting Snow Canyon to St. George. This park is also popular for road cycling through its scenic canyon road. With comfortable days and blooming desert wildflowers (desert marigolds and sand verbena often bloom by late March), Snow Canyon is a spring gem offering both scenic relaxation and outdoor fun.
    • Red Rock Canyon National Conservation Area (NV)Desert. Only 30 minutes from the Las Vegas Strip, Red Rock Canyon NCA boasts striped sandstone cliffs and plentiful trails. In March the average highs are around 70°F – ideal for hiking Ice Box Canyon or Calico Tanks without the searing heat of summer. The 13-mile Scenic Drive is paved and accessible to all vehicles, with many trailheads and picnic areas. The developed campground just outside the loop road accommodates vans (note: no hookups, but water available). Rock climbers dot the cliffs in spring, and hikers enjoy seasonal waterfalls in Ice Box and Pine Creek canyons as snowmelt trickles down. Mountain bikers can hit the Cowboy Trails or Cottonwood Valley network just south of the scenic loop. After a day of adventure amid red Navajo sandstone and gray limestone peaks, you’ll be treated to sunsets painting the rocks fiery orange – a true spectacle of this Mojave Desert landscape.

    April – Blooming Deserts and Warming Mountains

    • Zion National Park (UT)Desert/Canyon. Warming up nicely in spring, Zion Canyon sees April highs around 75°F. It’s a perfect time for hiking the park’s famous trails like Angels Landing (permits required) or The Narrows (water levels permitting) without the intense summer heat. South Campground and Watchman Campground (both accessible via paved roads) accommodate vans – you can even walk or cycle to trailheads from camp. Wildflowers begin blooming on the canyon floor, and the cottonwood trees add a flush of spring green along the Virgin River. Consider biking the Zion Canyon Scenic Drive (vehicles are limited in spring – a shuttle operates – but bikes are allowed and offer a peaceful ride beneath towering cliffs). By late April, Kolob Terrace Road opens up higher elevation hikes if you want cooler air. Water is chilly for kayaking, but you can enjoy wading in the river on warm afternoons.
    • Arches National Park (UT)Desert. April in Arches means moderate days (average ~72°F) and often clear skies. The park’s single campground at Devils Garden fills quickly but is reachable by paved road and fine for campervans. Reserve ahead or use nearby BLM camp areas off Hwy 191. Classic hikes like Delicate Arch and Devils Garden (Landscape Arch) are enjoyable in shirtsleeve weather. This is prime time for mountain biking on Moab’s famous trails just outside the park – the Slickrock Trail and Klondike Bluffs network are world-renowned and typically dry by April. Many outfitters in Moab rent bikes and 4×4 tours if you want to explore beyond the park. Arches itself doesn’t allow biking on trails, but you can cycle the scenic road for a great workout with views. With pleasant temps and blooming cliffrose and primrose flowers dotting the red rock desert, April shows Arches at its best. (Note: Moab averages around 63–72°F in Apr; start hikes early to beat any warmth and crowds.)
    • Yosemite Valley (CA)Mountain/Forest. As snows melt, Yosemite Valley warms to about 63°F in April afternoons, and waterfalls thunder at peak flow. Upper Pines Campground (open year-round) welcomes vans and provides a central base – you can bike the 12-mile paved path network around the valley or walk to trailheads. Hike the Mist Trail up to Vernal and Nevada Falls (prepare for waterfall spray!), or take easier walks to Yosemite Falls and Mirror Lake – all benefitting from spring runoff. The scenery is stunning with dogwood trees blooming by late April and clear, mild days. Nights can still be chilly (upper 30s°F), so bring a warm sleeping bag. While Tioga Road and Glacier Point Road are typically still closed by snow, the valley’s iconic sites (El Capitan, Half Dome views, etc.) offer more than enough. Rock climbing season starts now – you’ll see climbers on El Cap’s walls. And if you have a kayak or raft, by late April-early May the Merced River inside the valley may allow for a scenic float on calm sections (check park regs and flow conditions).
    • Alabama Hills (CA)High Desert/Mountains. The Alabama Hills, a BLM-managed wonderland of granite boulders and arches near Lone Pine, lie at ~4,500 feet elevation on the eastern side of the Sierra Nevada. April brings comfortable days (average highs ~73–74°F) with the backdrop of snowy Mt. Whitney towering above. Dispersed camping is allowed on the dirt tracks weaving through the movie-famous rock formations (no 4×4 required for many areas – roads are rough but passable to vans). Wake up to epic sunrise views of the Sierras turning pink. Popular short hikes include the Mobius Arch Loop and exploration of various film-history sites (dozens of Westerns were filmed here). Mountain bikers can enjoy the rocky paths around the hills, and rock climbing/bouldering opportunities abound on the golden granite. The nearby town of Lone Pine offers supplies and the Eastern Sierra Visitor Center (worth a stop). Alabama Hills has minimal amenities (pack water and pack out all waste), but the trade-off is a truly free and scenic camping experience under unbelievably starry skies.
    • Pinnacles National Park (CA)Chaparral/Rocky Peaks. Wildflowers and condors highlight spring at Pinnacles, where April highs hover around 72°F. Both east and west entrances have campgrounds (the east side campground is larger with more amenities, including showers and a pool, and is reachable by paved road suitable for vans). Hike the Bear Gulch Reservoir trail through talus caves – you might spot a California condor soaring overhead, as the park is a condor release site. The High Peaks loop is a must-do for panoramic views and up-close looks at Pinnacles’ spires (and roosting condors!). Spring blooms of mariposa lilies, poppies, and bush lupine dot the hillsides. Rock climbers enjoy the many bolted routes on the pinnacles, and birders will love the variety of raptors and spring migrants. No need for 4×4 here – all main areas are on paved roads. The temperate April weather and light crowds (compared to summer) make for a peaceful experience in California’s newest national park.

    May – Mountains and Canyons Come Alive

    • Grand Canyon South Rim (AZ)High Plateau/Canyon. By May the South Rim’s daytime highs average a perfect ~71°F at 7,000 feet elevation. The Rim Campgrounds (Mather or Desert View, both accessible via paved roads) put you steps away from breathtaking overlooks. Hike along the Rim Trail for easy, scenic views or venture down into the canyon via Bright Angel Trail – perhaps to the 1.5- or 3-mile resthouse and back – in cool morning temperatures. Mule rides and guided rafing trips on the Colorado River typically ramp up in May (though the river down in the Inner Canyon will be much hotter, so day hikes partway down are popular). Biking along the paved Greenway or Hermit Road (closed to public cars in summer, but bikes allowed) is a fun way to escape crowds and see more viewpoints. With snow gone and summer crowds not yet at peak, May offers fantastic visibility; you can see 100 miles on clear days. Don’t miss sunset at Hopi or Yavapai Point, and enjoy ranger programs under starry skies – the Grand Canyon’s night skies are incredibly dark and May’s mild evenings (40s°F) are comfortable for stargazing.
    • Santa Fe National Forest & Hyde Memorial SP (NM)Forest/Mountains. Spring in northern New Mexico brings mild weather to the Sangre de Cristo Mountains. In Santa Fe (elev ~7,000 ft), May days reach the low to mid-70s°F. Camp at Hyde Memorial State Park, a shady pine forest campground only 8 miles above Santa Fe (8,500 ft elevation, cooler nights in the 40s). By day, hike the Borrego Trail or drive up to Ski Santa Fe and trek to viewpoints over the Rio Grande Valley – trails are clear of snow by late May and wildflowers like lupine and violets start blooming in mountain meadows. In Santa Fe NF, dispersed camping along Forest Road 102 is also an option for vans (roads are graded dirt). The area offers excellent mountain biking, such as the Winsor Trail, and you can even do a day trip to nearby Cochiti Lake for kayaking or paddleboarding. After outdoor adventures, take advantage of Santa Fe’s famous cuisine and arts – the city is just a short drive, yet at your wooded campsite you’ll enjoy crisp mountain air and perhaps the sound of a creek running from spring snowmelt.
    • Great Sand Dunes National Park (CO)Desert/Dunes. Late May is prime time at Great Sand Dunes: the seasonal Medano Creek forms a “beach” at the base of the towering dunes, and average highs reach a comfortable ~66°F at the main visitor area (~8,000 ft elevation). Piñon Flats Campground (paved access) accommodates vans and offers immediate access to the dunes – you can sand-sled or sandboard down the 750-foot Star Dune (rent gear in nearby Alamosa or at the Oasis shop) or simply hike barefoot across the dunes in the cool mornings and evenings. Kids (and kids-at-heart) will love splashing in Medano Creek’s shallow flowing water in May; it’s like a natural waterpark against a backdrop of sand peaks and the 13,000-ft Sangre de Cristo Mountains. For more adventure, drive (or bike) the Medano Pass Primitive Road to escape crowds – many segments are sandy (4×4 usually required beyond Point of No Return), but even a short venture in reveals solitude. Mountain biking is allowed on that road and in the adjacent national preserve. May’s mild weather and unique mix of sand, water, and mountains make this an unforgettable camping destination.
    • Columbia River Gorge (OR/WA)River/Forest. Experience spring waterfalls and greenery in the Gorge, where May temperatures average around 65–70°F. Several state parks offer campgrounds suitable for vans – Ainsworth State Park on the Oregon side is a great central location along the historic Columbia River Highway. From camp, you’re minutes away from spectacular waterfalls like Multnomah Falls, Latourell Falls, and Wahkeena Falls, all flowing fullest in spring. Hike the Angel’s Rest Trail on a cool morning for a panoramic view of the Gorge cloaked in fresh green foliage. If you’re into wind sports or kayaking, the Gorge is famous for spring winds – the Hood River waterfront (30 minutes east) has kayak and paddleboard rentals, or just watch the windsurfers and kiteboarders skim the whitecaps. Mountain bikers can hit the Syncline trail system on the Washington side for wildflower-filled rides overlooking the river. At camp, you’ll likely see and hear trains echoing through the canyon and enjoy cool, misty nights (40s°F) that are perfect for campfires. Spring in the Gorge means fewer crowds than summer and vibrant scenery – dogwoods, lilacs, and wildflowers blooming against basalt cliffs.

    June – Early Summer Mountain Escapes

    • Denali National Park (AK)Tundra/Mountains. Long days and mild temperatures make June ideal for visiting Denali. At the park entrance (approx 1,700 ft elevation), highs climb from ~60°F to 66°F over June. The Teklanika River Campground (mile 29 on the park road) allows vans/RVs and lets you wake up deep in the wilderness with Denali’s peaks on the horizon (special permit required since private vehicles beyond mile 15 must stay at Teklanika for at least 3 nights). With nearly 20 hours of daylight, you can maximize wildlife viewing – watch for grizzly bears, moose, Dall sheep and caribou on park shuttle bus tours that start running in early summer. Hike the tundra hillsides (off-trail hiking is allowed – try the Savage River area for moderate routes) amid fields of wildflowers like Arctic forget-me-nots. Mountain biking is permitted on the park road; cycling the section from Savage River to Teklanika offers solitude and sweeping vistas. Fishing is also an option in Riley Creek or the Teklanika (check regulations). Bugs can start to emerge later in June, so bring repellent, but earlier in the month they’re minimal. With Denali’s summit often visible in the clear early-summer skies, June offers an unforgettable mix of adventure and serenity in Alaska’s frontier.
    • Yellowstone National Park (WY)Geothermal/Forest. In June, Yellowstone’s valleys bloom with wildflowers, bison calves graze, and days hover around 60–70°F at the main visitor areas (~7,000 ft). Most campgrounds open by mid-June – for campervans, Madison Campground is a nice central spot (reservations recommended). From there, you can drive the Grand Loop without backtracking too much. Highlights: Watch Old Faithful geyser erupt without heavy summer crowds, witness powerful waterfalls along the Grand Canyon of the Yellowstone (the South Rim Trail offers great viewpoints of 308-foot Lower Falls), and spot wildlife in Lamar or Hayden Valley (dawn/dusk drives often reveal herds of bison, elk, and maybe wolves or bears). The weather is pleasant – even hitting ~70°F on sunny afternoons – but always carry layers; brief rain or even a late snow flurry can occur in early June. Many hiking trails at lower elevations (Mystic Falls, Fairy Falls, Storm Point by Yellowstone Lake) are accessible and lovely this time of year, though higher alpine trails may still have patches of snow. Kayaking or canoeing is allowed on certain lakes (e.g., Lewis Lake, with a permit) if you want a water adventure. With its mix of geysers, wildlife, and mountains, early summer in Yellowstone is magical – and before the peak tourist wave later in July.
    • Rocky Mountain National Park (CO)Alpine/Forest. By June, Trail Ridge Road typically opens, connecting the east and west sides of RMNP and allowing access to stunning alpine scenery. Estes Park (7,500 ft) sees highs around 65–75°F in June, and the park’s lower elevations are snow-free, bursting with wildflowers. Moraine Park or Glacier Basin Campground (both easily accessible by paved roads) make great basecamps for vans on the east side. From there, tackle classic hikes like Emerald Lake (through subalpine forest to a turquoise lake beneath Hallett Peak) or Deer Mountain for a moderate summit view – all in mild weather and with chances to spot elk calves and mule deer along the trails. The west side (Grand Lake area) is quieter; you can camp at Timber Creek and hike Coyote Valley Trail along the Colorado River to see moose in the meadows. Driving up Trail Ridge Road, you’ll hit the alpine tundra (over 12,000 ft) where temperatures drop (pack a jacket to stroll the Tundra Communities Trail amid tiny wildflowers and panoramic vistas). In June the park still has some snow in shaded areas, but overall conditions are great for hiking, fishing in mountain streams, and wildlife viewing (bighorn sheep often visible at Sheep Lakes). With moderate days and cool nights, early summer in RMNP is all about clear skies and enjoying the Rockies’ high-country beauty before the monsoon rains of late summer.
    • Lake Tahoe – Tahoe State Recreation Area (CA/NV)Lake/Mountains. Straddling California and Nevada at 6,200 ft, Lake Tahoe is gorgeous in June with daytime highs ~67–75°F and the snow-capped Sierra as a backdrop. Camp at Tahoe State Recreation Area in Tahoe City or nearby D.L. Bliss State Park (both van-accessible via paved roads) to be near the lake’s shore. These campgrounds fill up, so reserve ahead. The lake’s water is brisk (average Fifty degrees), but kayaking or paddleboarding is popular and rental shops are open – explore Emerald Bay’s clear waters and even paddle out to Fannette Island. Mountain biking is excellent now: the famous Tahoe Rim Trail and Flume Trail become mostly snow-free, offering epic rides with lake views (shuttle services available for one-way rides). Hikers can enjoy trails like Eagle Falls to Eagle Lake or Cascade Falls Trail, which gush with late-spring runoff and wildflowers like lupine and mule’s ear blooming along the paths. In the evenings, temps dip to the 40s, perfect for campfires and maybe catching an outdoor movie at the campground amphitheater (some parks offer ranger programs by summer). By June’s end, all facilities are open – from lakefront cafés in Tahoe City to scenic cruises on the M.S. Dixie II paddlewheeler (a fun rest-day activity). Early summer at Tahoe provides that sweet spot: warm days, relatively few mosquitoes, and all the outdoor recreation you could want, from beaches to peaks.

    July – Peak Summer: High Peaks, Coasts, and the Far North

    • Kenai Peninsula – Kenai Fjords & Chugach (AK)Coastal/Forests/Glaciers. Alaska’s Kenai Peninsula offers everything from coastal fjords to salmon-filled rivers, and July is the warmest month: Anchorage sees highs around 65–70°F. Set up base in Seward, where city campgrounds along Resurrection Bay welcome vans (with mountain and ocean views) or at Kenai Fjords National Park’s Exit Glacier campground (tents/van-friendly, free but primitive). Days are long – about 18 hours of light – so you can pack in adventures. Kayak in Resurrection Bay (outfitters rent kayaks or offer guided trips) among sea otters and puffins, or take a day cruise to see tidewater glaciers calving and whales feeding. Hike the Exit Glacier Edge Trail or the Harding Icefield Trail (more strenuous) to witness a vast icefield in the midnight sun. Over in Homer on the peninsula’s south end, you can camp on the Homer Spit (essentially beachfront camping) and kayak or fish in Kachemak Bay; halibut fishing charters and sea kayak tours to offshore coves are popular. Mountain bikers will enjoy the Russian Lakes Trail near Cooper Landing for a long wilderness ride past lakes and through spruce forests. With salmon runs starting, consider trying your hand at fishing on the Kenai River or Russian River – some campgrounds (like Russian River Campground) put you steps from the action. The Kenai combines mild weather, jaw-dropping scenery, and endless outdoor options, making it an Alaskan summer paradise.
    • Olympic National Park (WA)Rainforest/Mountains/Coast. July is the sweet spot for Washington’s Olympic Peninsula – the rainy season has eased and mild temperatures (highs in the upper 60s°F at the coast, 70s inland) prevail. You can experience three ecosystems in one park. For coastal camping, stay at Kalaloch Campground (paved access, oceanfront sites) and explore Kalaloch and Ruby Beaches with their sea stacks and tide pools (look for starfish and anemones at low tide). Then drive up to the Hoh Rainforest: temperatures here are cool (60s) under the dense canopy – hike the Hoh River Trail among giant moss-draped trees and babbling streams. Next, head to Hurricane Ridge (road accessible by van) for mountain vistas; the Hurricane Ridge campground is primitive, so many opt for Heart O’ the Hills near Port Angeles. Up on the ridge, you can day-hike alpine meadows filled with lupine and paintbrush, often seeing deer, marmots, and maybe Olympic elk. Mountain biking is not allowed on trails in the park, but the Olympic Discovery Trail offers a great bike ride just outside (a paved path through forests and along Lake Crescent). Lake Crescent Lodge area also has kayak rentals if you fancy a paddle on the clear glacial lake. The variety of scenery is unbeatable – one day you’re walking barefoot on a beach, the next you’re in a sweater hiking through foggy fir forests. July’s reliably clear weather lets you enjoy stargazing from the coast and sunsets from Hurricane Ridge without the worry of rain.
    • North Cascades National Park (WA)Mountains/Forests. Often called the “American Alps,” the North Cascades burst with life in midsummer. July brings highs in the 70°F range in the lower valleys, while higher elevations remain cooler – perfect for hiking without overheating. Newhalem Creek Campground (along Hwy 20) is a convenient van-friendly spot with forested sites and trail access. From there, explore the Cascade Pass Trail (via a steep but doable gravel road to the trailhead – many passenger cars make it) for an unforgettable hike through wildflower meadows with jagged peaks and glaciers in view; July often means heather, lupine, and beargrass in bloom. Ross Lake and Diablo Lake are bright turquoise from glacial silt – you can rent canoes or kayaks at Ross Lake Resort (reach via hike or water taxi) or simply admire Diablo Lake from the viewpoint and picnic area along the highway. The Thunder Creek Trail out of Colonial Creek Campground offers a relatively gentle forest hike along a blue-green river into the backcountry. Keep your eyes peeled for black bears and mountain goats, especially in early morning or dusk near alpine areas. Mountain bikers will enjoy the nearby Methow Valley trails (just east of the park) – in summer those high-country singletracks like Cutthroat Pass are open and give expansive views of the Cascades. North Cascades NP itself is mostly trail-access only, but the scenic byway (Hwy 20) through it has countless pullouts and short walks to views (e.g., Rainy Lake Trail is an easy path to an alpine lake). July’s stable weather finally melts out the highest trails, so this is the month to experience the pristine wilderness of North Cascades – often in solitude, as it’s one of the least-crowded national parks.
    • Oregon Coast – Nehalem Bay State Park (OR)Coastal. Summer along Oregon’s coast is famously cool and pleasant – highs in July hover in the mid-60s°F with ocean breezes. Nehalem Bay State Park’s campground sits on a sandspit tucked between a peaceful bay and the Pacific Ocean, easily accessed by paved road just off Highway 101. You can camp literally over the dune from a wide, uncrowded beach – fall asleep to the sound of waves. Days here can be spent beachcombing for sand dollars, horseback riding on the beach (the park has a horse rental concession in summer), or kayaking in Nehalem Bay’s calm waters (rentals available in nearby Wheeler or bring your own). This area is great for crabbing and clamming too – at high summer tides, dig for clams on the bay side or drop crab pots off the docks (with permit). Mountain bikers and hikers can enjoy the 5-mile Nehalem Bay Trail looping through shore pines and dunes in the park, or venture to Oswald West State Park a few minutes north for rainforest trails leading to hidden coves like Short Sands Beach (a popular surf spot). July is dry season, so you’ll likely have morning mist that gives way to sunny afternoons – perfect for flying kites on the beach under bright blue skies. Thanks to the ocean’s moderating effect, even peak summer never gets too hot here, making Oregon’s coast a refreshing retreat with classic beach-town vibes (nearby Manzanita’s quaint cafes and ice cream shops are a bonus stop).

    August – Cool Mountain Air and Alpine Lakes

    • San Juan Mountains – Ouray & Ridgway State Park (CO)Mountains. In Colorado’s high San Juans, August brings comfortable warmth to the valleys (Ouray’s average high ~75°F) while the high country stays cool. Camp at Ridgway State Park, just north of Ouray, where sites overlook Ridgway Reservoir (great for kayaking, SUP, or swimming – the water is refreshing but not too cold by late summer). This area is a mountain biking haven: the park itself has easy trails, and nearby you’ll find challenging singletrack like the Dallas Creek Trail with stunning views of Mt. Sneffels. Ouray, nicknamed “Switzerland of America,” offers amazing hikes – don’t miss the Perimeter Trail, a 6-mile loop around town that crosses high bridges and passes waterfalls (Box Cañon Falls is a highlight) with panoramic town views. Off the Million Dollar Highway (550), you can drive a van up the well-graded dirt Camp Bird Road to the Yankee Boy Basin trailhead – from there, hike through fields of columbine and Indian paintbrush to Blue Lake or just enjoy the alpine scenery at 12,000 feet (go in the morning to avoid afternoon storms). After outdoor pursuits, relax in Ouray’s public hot springs pool – soaking in natural hot springs under the stars with 50°F evening temps is pure bliss. Summer monsoon rain showers can occur, but usually brief. With its mix of lake time, mountains, and charming Old West towns, the San Juans in August are hard to beat for scenery and adventure.
    • Mount Rainier National Park (WA)Alpine/Mountains. August is peak wildflower season on Mount Rainier’s subalpine meadows. The Paradise area of the park (5,400 ft) sees average highs in the low 60s°F at that elevation, while the Longmire area (2,700 ft) is around 74°F – so weather is pleasant across the mountain. Cougar Rock Campground (paved access) is a good base on the southwest side, putting you close to Paradise. From Paradise, hike the Skyline Trail through fields of lupine, paintbrush, and beargrass, with the 14,410-ft snow-clad Rainier towering above – you may even catch sight of climbers heading for the summit in the early hours. Sunrise is another great region (on the northeast side, reachable by van-friendly road); the Burroughs Mountain Trail offers a moonscape-like hike to viewpoints right in front of the mountain’s glaciers. Mountain bikers aren’t allowed on park trails, but the nearby Crystal Mountain resort has lift-served biking and the White River valley outside the park has some rugged biking trails. Back in the park, don’t miss the short hike to Grove of the Patriarchs (an easy walk among giant old-growth cedars on the Ohanapecosh side) – a nice shady retreat if the sun is strong. Streams are fed by glacier melt now, so it’s a good time for whitewater kayaking or rafting on the Nisqually or White Rivers (guided trips available outside the park). August is typically the driest month, so picnic with a view of wildflower-carpeted meadows at Paradise – the scene is famously gorgeous, described as “Paradise” for good reason. Just be sure to make campground reservations or arrive early – this is prime time to experience Rainier’s beauty.
    • Yosemite High Country – Tuolumne Meadows (CA)Alpine/Mountains. While Yosemite Valley bakes in the upper 80s in August, Tuolumne Meadows (8,600 ft) stays around 70°F for a high, offering cool relief amid granite domes and sparkling rivers. The Tioga Road (Highway 120) is open, and Tuolumne Meadows Campground (vast and van-accessible) is the perfect base for high-elevation hiking and climbing. Classic hikes include Lembert Dome (a moderate climb to 360° views of the meadows and mountains), Glen Aulin (to see Tuolumne Falls and cascades along the Tuolumne River), or even a day hike partway toward Cloud’s Rest for epic vistas without Yosemite Valley’s crowds. August is also prime time for rock climbing on Tuolumne’s domes – you’ll see climbers scaling Cathedral Peak or Drug Dome in the cool mornings. The Tuolumne River is usually gentle enough by this time for a refreshing dip in swimming holes like at Twin Bridges. If you have a kayak or raft, Tenaya Lake (along Tioga Road) is a serene alpine lake for paddling with a backdrop of polished granite. Evenings in the meadows drop to the 40s, great for campfires and ranger-led astronomy programs (the night skies at Tuolumne are very dark – you can clearly see the Milky Way). Keep an eye out for wildlife: mule deer graze at dusk, black bears occasionally wander through, and you’ll definitely hear coyotes yipping at night. With its lofty scenery and pleasant summer weather, Yosemite’s high country in August lets you experience the park’s grandeur without the valley heat – it’s a hiker’s paradise where granite meets sky.
    • Crested Butte & Gunnison National Forest (CO)Mountains/Meadows. Famed for its wildflowers and mountain biking, Crested Butte sits at 8,900 ft with August highs around 72°F – ideal for active days. Several National Forest campgrounds (like Lake Irwin or Oh Be Joyful – access via graded dirt roads, usually fine for vans) offer lovely settings near alpine lakes and trailheads. By August, the wildflower bloom has mostly moved to higher alpine zones, but you’ll still see fireweed, goldeneye, and late-summer blooms painting the hillsides. For mountain bikers, CB is legendary: ride the 401 Trail, a thrilling singletrack through fields of flowers and aspen groves with panoramic valley views – it’s a must-do and usually in prime shape by August. Hikers can enjoy the same beauty on foot via trails like Rustler’s Gulch or a summit of Scarp Ridge for views of Emerald Lake. Back in town, Crested Butte has a free, bustling atmosphere – grab a coffee and stroll the historic Elk Avenue. Consider an afternoon at Crested Butte Mountain Resort, which offers lift-served downhill biking and an adventure park. If you love water, the Taylor River (30 minutes south) has whitewater rafting (class II-III in late summer) and great trout fishing. Evenings are cool and crisp – perfect for BBQing at camp or soaking in the clothing-optional natural hot springs at nearby Strawberry Park (just kidding, that one’s near Steamboat – in CB, look for the local favorite Cement Creek hot spring). With its mix of world-class trails, friendly town vibe, and scenic campsites under starry skies, Crested Butte in August is a Colorado Rocky Mountain summer at its finest.

    September – Autumn Colors and Fewer Crowds

    • Glacier National Park (MT)Mountains/Lakes. Early fall in Glacier brings golden aspens and crisp air. In September, highs average ~67°F at lower elevations (e.g., Lake McDonald), cooling into the 50s by month’s end – terrific hiking weather. Many campgrounds remain open through mid-September; Apgar Campground by Lake McDonald is a convenient spot for vans (paved access, near the Apgar village amenities). The famous Going-to-the-Sun Road is still open (typically until early October), so you can drive over Logan Pass (no 4×4 needed, but be mindful of vehicle size limits) and take in the jaw-dropping views of glacial valleys aflame with fall colors. Don’t miss hiking Highline Trail from Logan Pass – in September you’ll avoid the peak crowds while possibly spotting mountain goats and bighorn sheep preparing for winter. The trail’s vistas over the changing larch and aspen forests are stunning. In Many Glacier, which stays open through September, hike to Grinnell Glacier or Iceberg Lake – autumn reds and yellows of huckleberry bushes contrast with turquoise alpine lakes. The weather is generally stable, but pack layers as mornings can be frosty (lows in 30s). Kayaking or canoeing on Swiftcurrent Lake or Lake McDonald is serene this time of year – the waters are like glass on calm mornings, perfectly reflecting the mountains. With wildlife on the move (elk bugling, bears hyperphagia – be bear aware and carry spray), and brilliant foliage around every turn, September showcases Glacier’s wild beauty at its peak.
    • Grand Teton National Park (WY)Mountains/Lakes. The Tetons in fall are spectacular. September highs average in the mid-60s°F in Jackson Hole, and by late month, aspens turn golden against the sharp granite peaks. Camp at Colter Bay or Gros Ventre Campground (both van-accessible via paved roads) for central access. Wildlife watching is prime – head out at dawn to Oxbow Bend or Willow Flats: mist on the Snake River and frequent sightings of moose, elk (in rut, bugling echo across the valley), bison, and even the occasional grizzly or wolves near Willow Flats. Hiking is glorious in the cool weather – popular trails like Jenny Lake to Cascade Canyon or Taggart Lake offer reflections of the mountains in calm lakes and vibrant fall colors. The park’s multi-use pathway from Jenny Lake to Jackson is great for biking with stunning views (bikes are also allowed on the Antelope Flats road – a nice ride to see historic barns and possibly bison). September is also a great time for floating the Snake River – several outfitters offer scenic raft trips where you might spot eagles and otters, all under comfortable sunny skies. Don’t forget to stop at Mormon Row early or late in the day for iconic photos of the old barns against pink alpenglow on the Tetons. Nights start getting chilly (freezing temps possible), so gather around the campfire and listen for elk in the distance. With thinning crowds after Labor Day, Grand Teton NP becomes a tranquil autumn paradise for hikers, photographers, and nature lovers alike.
    • Sawtooth Mountains (ID)Mountains/Lakes. Idaho’s Sawtooth Range is a hidden gem, and September is a fantastic time to visit. In Stanley (elev ~6,200 ft), days reach around 65–70°F early in the month, then cooling – and Stanley notoriously has very crisp nights (often freezing even in September). For a van, try the Stanley Lake or Redfish Lake campgrounds (paved access; Redfish has showers and even late-season kayak rentals). The summer crowds are gone, so you might have a lake all to yourself. Hike in the Sawtooth Wilderness with fiery fall foliage: the Alice Lake–Twin Lakes loop is a stunning backpack or long dayhike, but shorter out-and-backs (like to Alpine Lake from Redfish trailhead) are great too, showcasing jagged peaks reflected in clear waters. The aspens and willows in Stanley Basin turn gold, and you might hear the bugle of elk in the evenings. Mountain bikers enjoy the Salmon River Trail or Fisher Creek Loop in fall – hero dirt after a rain and bright colors lining the singletrack. The Salmon River through Stanley is mellow by this time, but you can still enjoy a gentle rafting or tubing trip on warm afternoons. For a unique treat, soak in natural hot springs – Sunbeam Hot Springs on the Salmon River (a short drive from Stanley) or Mountain Village Resort’s spring-fed tub in Stanley are perfect to warm up as the sun sets. The Milky Way is brilliant in Idaho’s dark sky – bundle up and do some stargazing from an open meadow. The Sawtooths in September offer a peaceful retreat: cool air, spectacular mountain scenery, and the sense of having this wild corner of the Rockies practically to yourself.
    • Big Sur – Andrew Molera State Park (CA)Coastal. September often brings an “Indian Summer” to California’s central coast, and Big Sur’s weather is at its best – less fog and slightly warmer temps (average high ~70°F). Andrew Molera State Park’s trail camp (first-come, first-served) is walk-in only, but you can park your van in the lot and backpack gear 0.3 miles to a spacious meadow campground above the Big Sur River. It’s a primitive camp, but the trade-off is serenity and access to both beach and trails. Enjoy Molera’s long sandy beach at the river mouth – by September the coastal fog retreats more often, giving sunny beach afternoons. Hike the Molera Bluff Trail for panoramic ocean views and perhaps spot migrating whales or dolphins offshore. Further north or south along Highway 1 (all paved, but slow winding roads), you can visit iconic sights like McWay Falls (at Julia Pfeiffer Burns SP) or Bixby Bridge without peak summer crowds. A great moderate hike is Ewoldsen Trail in Julia Pfeiffer Burns SP, which winds through redwoods to an overlook of the coastline. If you’re comfortable with remote roads, drive up to Pfeiffer Big Sur State Park and take Buzzard’s Roost Trail for a sunset view over the ocean and hills. September’s clear, mild weather also makes it ideal for kayaking the kelp forests at nearby Monterey Bay or Stillwater Cove (rentals in Monterey/Carmel) – you might see sea otters and harbor seals. Evenings in Big Sur are cool (50s°F), perfect for a campfire and listening to the crash of waves below. With the summer rush gone, you’ll experience Big Sur’s wild coastline and redwood groves in a peaceful, golden autumn light – arguably the best time of year to be there.
    • Bryce Canyon National Park (UT)High Plateau/Desert. The brilliant hoodoos of Bryce Canyon are even more enchanting in the fall, set against deep blue skies. September brings crisp days averaging around 70°F at Bryce’s 8,000–9,000 ft elevations, and very little rainfall. Sunset Campground or North Campground (both just off the paved park road) are great for vans and put you near the rim. Spend your days hiking below the rim among the hoodoos – the combined Queen’s Garden/Navajo Loop is a favorite, taking you past whimsical rock spires and through Wall Street slot canyon. The air is cool enough for the steep hike back up. Alternatively, the Peekaboo Loop offers a slightly quieter path among the formations (and is open to horse rides too, which operate through summer). Come evening, bundle up (nights drop to the low 40s or 30s) and stargaze – Bryce is an International Dark Sky Park and the Milky Way over the amphitheater of hoodoos is unforgettable. The park often offers ranger-led astronomy programs in fall. Mountain biking is not allowed in the canyon, but just outside in Red Canyon (on Hwy 12) you’ll find excellent bike trails like Thunder Mountain, which winds through red-rock hoodoos akin to a mini-Bryce – September’s pleasant weather makes it an epic ride. Wildlife, such as pronghorn and mule deer, are commonly seen in the mornings grazing the plateau. With summer thunderstorms gone, the air is crystal clear; you can see 100+ miles from Bryce Point on a good day. Fewer visitors in fall mean you might catch a spectacular sunrise at Sunrise Point in peace. All in all, September offers Bryce Canyon at its most comfortable and picturesque, with striking contrasts of orange rock, green pines, and blue sky in the high desert light.
    • Redwood National & State Parks (CA)Coastal Forest. Early fall is a wonderful time among the coast redwoods – the summer fog diminishes, and occasional sunny afternoons highlight these ancient giants. September highs along the northern California coast are around 64–67°F, and it’s often drier. Set up at Jedediah Smith Redwoods State Park campground (easy paved access for vans, nestled in old-growth forest by the Smith River) or Prairie Creek Redwoods’ Elk Prairie campground, where Roosevelt elk graze in the meadow at dusk. The Stout Grove in Jedediah Smith is a must-see – an easy walk through an ethereal grove of 300-foot redwoods with shafts of light filtering through (go in late afternoon for magical lighting). For a longer hike, the James Irvine Trail to Fern Canyon in Prairie Creek takes you from redwood uplands down to a surreal narrow canyon dripping with ferns (parts of Jurassic Park were filmed here). You can even combine it with a loop along Gold Bluffs Beach and potentially spot migrating gray whales offshore. Kayaking the gentle Smith River is a treat on a warm day – the water is crystal clear and emerald green (rentals/guides are available in Crescent City). Mountain bikers can enjoy the Ossagon Trail or Lyons Ranch Trail in Redwood NP, which are open to bikes and offer unique perspectives of both prairie and redwood forest. Come night, coastal skies can be foggy or clear – if clear, you’ll have a dark sky for stargazing, but often the mist adds to the mystique of camping among the towering trees. In September, you get the best of both worlds in Redwood country: diminished fog, mild temps, and vibrant forest life (berries are in season and banana slugs still prowling!). It’s a peaceful finale to the summer, standing among some of the tallest living beings on earth in the golden light of autumn.

    October – Golden Aspens and Desert Solitude

    • Arches & Canyonlands (UT)Desert. Southwestern Utah cools off beautifully by October – Moab sees average highs in the lower 70s°F dropping into the 60s later in the month. This is an ideal time to explore Arches National Park and the Island in the Sky district of Canyonlands with thinning crowds. You can camp in Arches at Devil’s Garden Campground (reserve ahead; van-accessible by paved road) or find plentiful BLM camping on public lands along Hwy 313 or 279. With the sun less intense, hikes like Delicate Arch at sunset or the Fiery Furnace tour (permit or ranger-led) are comfortably enjoyed. Over in Canyonlands, drive up to Grand View Point and hike the Grand View Rim Trail for an astounding panorama 1,000 feet above the White Rim – the clarity in fall is great for photography, capturing the red-orange canyons under deep blue skies. Mountain bikers flock here in autumn: the Whole Enchilada epic high-country ride usually remains rideable in early October before snow hits the La Sals – delivering 7,000 ft of descent down to the Colorado River. If that’s too extreme, the Klondike Bluffs trails or Magnificent 7 offer moderate rides through slickrock and canyons with perfect temps (and golden cottonwoods lining some wash bottoms). Consider a calm Colorado River kayak trip through Horsethief Canyon – in fall the river is gentle and the canyon walls glow in late afternoon light. Evenings are cool (40s°F), making for pleasant campground campfires under bright stars. With autumn’s angled sunlight and milder weather, Moab’s red rock landscapes are at their most photogenic and approachable – truly a desert paradise in October.
    • Capitol Reef National Park (UT)Desert/Oasis. Often overlooked, Capitol Reef offers a quieter Utah park experience. October brings highs around 65–70°F in the Fruita historic district (5,300 ft elevation), with cold nights perfect for fruit harvest. The Fruita campground (van-friendly, paved access) is nestled in an old pioneer orchard beneath golden cottonwood trees and red cliffs – in fall, the park’s heritage orchards still invite visitors to pick apples, pears, or peaches (depending on early-October availability) for a small fee, making for a delightful fresh snack or pie over the campfire. Hike the Fremont River Trail or Capitol Gorge under pleasant sun – petroglyphs and autumn foliage (bright yellow cottonwoods) add interest to the red-rock scenery. A must-do moderate hike is Cassidy Arch, which offers a thrilling view over a natural bridge and the grand wash below. October’s stable weather also makes it ideal for the park’s scenic drives: the paved Capitol Reef Scenic Drive showcases vibrant strata in golden light, and the unpaved Grand Wash or Cathedral Valley roads (high clearance recommended, but in good weather many vans manage partway) lead to otherworldly monoliths – check conditions at the visitor center. Mountain biking is allowed on the rugged Aqua Canyon and Cathedral Valley roads; the crisp air makes these long routes enjoyable if you’re prepared with water and spares. In the evenings, Capitol Reef’s distance from major development means spectacular stargazing – the park has very little light pollution. Rangers often host astronomy programs as it’s an International Dark Sky Park. With its mix of slickrock hiking, cultural history, and pastoral fruit groves backdropped by sheer cliffs, Capitol Reef in fall feels like a tranquil oasis where you might have a slot canyon or an overlook all to yourself.
    • Santa Barbara Coast – Refugio State Beach (CA)Coastal. Early October often carries summer-like warmth along the Southern/Central California coast, without the crowds. Santa Barbara averages a balmy ~72°F in early October, making it beach weather plus excellent for ocean sports. Refugio State Beach, just 20 miles west of Santa Barbara, offers palm-lined beach camping steps from the sand (paved access for vans). Days can reach the mid-70s with plenty of sun – perfect for kayaking or stand-up paddleboarding along the Gaviota Coast (Refugio has a kayak tour concession in summer that sometimes runs into early fall, or launch your own from the gentle cove). The marine life is active in fall – you might spot passing dolphins or even the last of the blue whales migrating south. Try snorkeling or tidepooling in the clear autumn waters at Refugio and nearby El Capitan Beach (garibaldi fish and starfish can be seen). For biking, ride the coastline bike path or the scenic (and winding) Refugio Road into the Santa Ynez Mountains for a challenge – the views of the Channel Islands on a clear day are stunning. Back at camp, palm trees rustle overhead as you enjoy a sunset where the sun sinks into the Pacific – fall sunsets are often vividly colored. Santa Barbara’s wine country is just over the hill, so you could easily take a day trip to the Santa Ynez Valley for vineyard tours during the cooler part of the day. Nights by the beach are mild (50s°F), and you can fall asleep to gentle waves. October is outside the foggy season, so starry nights and sunny days are the norm – truly an extended summer vibe. Whether you prefer active surfing and paddling or simply lounging under a beach umbrella with a good book, the Santa Barbara coast in October offers relaxation and recreation with a golden-state backdrop.

    November – Desert Tranquility and Mild Coasts

    • Joshua Tree National Park (CA)Desert. In November, the Mojave Desert’s fierce summer has long gone – Joshua Tree enjoys average highs around 70°F, making it one of the best months to visit. With pleasant days and clear skies, you can comfortably hike the Mastodon Loop or Barker Dam Trail, scramble on the otherworldly granite boulders, and of course, admire the namesake Joshua trees in peak condition. The park’s campgrounds (like Hidden Valley, Jumbo Rocks) are first-come, first-served and van-accessible; they tend to fill on weekends, but midweek in November is quieter. Rock climbers flock here now – you’ll see them scaling cliffs at Hidden Valley and Intersection Rock in perfect temps. If you mountain bike, try the Geology Tour Road (in the north, requires strong legs and maybe fat tires in sandy spots) or trails just outside the park in Joshua Tree BLM lands – the weather is ideal for long rides. A unique activity in late fall is astrophotography: with over 10 hours of darkness and very dry air, Joshua Tree’s night skies are phenomenal. Bring a tripod to capture silhouettes of Joshua trees against the Milky Way – it’s new moon in mid-November, perfect for stargazing. While days are warm, nights do get chilly (around 40°F), so enjoy a campfire as the stars emerge (check for any seasonal fire restrictions). The park’s higher elevations (around Keys View) might even get a light frost, adding sparkle to the desert vistas. November also marks the start of the social season in nearby Joshua Tree town – you can hit up the Saturday farmers’ market or listen to live music at Pappy & Harriet’s in Pioneertown for a local flavor. All told, with its blend of serene desert hikes, world-class climbing, and cosmic night skies, Joshua Tree in November is magical – a calm, rejuvenating escape as the holidays approach.
    • Mojave National Preserve (CA)Desert. For true solitude, Mojave Preserve offers wide-open desert vistas, dunes, and Joshua tree forests with very few visitors. November brings daytime highs in the mid-60s°F – excellent for exploring the preserve’s highlights. Camp at the developed Hole-in-the-Wall Campground (paved access, suitable for vans, and famously scenic with volcanic rock walls) or choose dispersed roadside camping along Kelbaker or Aiken Mine Roads (ensure your van can handle some washboard dirt). Don’t miss the Kelso Dunes – a 700-foot tall dune field you can hike up in the cool morning; with the mild weather you might even hear the “singing” sands (a humming sound the dunes produce when sliding down). Another adventure: the Lava Tube off Aiken Mine Road – an easy scramble into an underground tube where shafts of light beam through holes in the lava ceiling around midday. Hikers will enjoy the Rings Loop at Hole-in-the-Wall, where you use metal rings to climb through a pockmarked volcanic chute. The preserve’s namesake Mojave yuccas and Joshua trees dot the plains around Cima – an easy walk through the Cima Dome area immerses you in the world’s densest Joshua tree forest (recovering after a 2020 fire, but still impressive). Mountain biking is allowed on Mojave’s dirt roads – try a ride out to Fort Piute along the old Mojave Road for a mix of history (ruins of an old fort) and scenery; just carry plenty of water. With so little light pollution, nights are brilliantly starry and tend to be cold (~40°F), but perfect for campfire storytelling under constellations. Mojave Preserve in November is about peace and vastness – you can wander for hours without seeing another soul, experiencing the desert much as it’s been for millennia.
    • Organ Pipe Cactus National Monument (AZ)Desert. Tucked on the Arizona-Mexico border, Organ Pipe enjoys warm, sunny November days (average highs ~75°F early month, easing to upper 60s by late month) and is a showcase of the Sonoran Desert. The monument’s Twin Peaks Campground (paved access, has water and solar-heated showers) is very van-friendly and offers views of towering organ pipe cacti right from your site – this is the only place in the U.S. to see extensive groves of these multi-armed cacti. Hit the Ajo Mountain Drive, a 21-mile scenic loop (gravel, but usually 2WD-passable) that winds through dense cactus stands and volcanic peaks; along the way, stop to hike the Arch Canyon Trail for a closer look at a natural arch and sweeping desert panoramas. With mild temps, wildlife is active – watch for desert bighorn sheep on distant ridges, or take an evening stroll near camp to spot the bright green (and harmless) Sonoran desert toads emerging. The park offers some ranger programs in winter; a guided van tour or talk on desert ecology can enrich your visit. Mountain biking is allowed on the monument’s roads – consider biking the 5-mile Puerto Blanco Drive segment to Senita Basin for a fun ride among saguaros and organ pipes (just avoid unpaved roads after rare rain). November is also the start of wildflower season for some species like desert zinnia and Mexican poppies if late fall rains occur. One unique adventure: cross into Mexico at Lukeville and visit the fishing village of Puerto Peñasco (Rocky Point) on the Sea of Cortez – it’s about 2 hours south, popular and safe for travelers, and November’s weather is perfect for beach camping there as well. Whether you stick to Organ Pipe’s pristine desert solitude or make a binational trip, you’ll be treated to warm days, cool nights, and the iconic silhouettes of organ pipe and saguaro cacti under starry skies.
    • San Diego County – Anza-Borrego & Coast (CA)Desert & Coastal mix. Late fall in Southern California means you can enjoy desert hiking in the morning and catch a Pacific sunset by evening. In Anza-Borrego Desert State Park, November highs are in the mid to upper 70s°F – ideal for exploring the largest state park in California. Set up at Borrego Palm Canyon Campground (paved access, has showers), then hike the Borrego Palm Canyon Trail early to see likely bighorn sheep and a lush palm oasis tucked in rocky folds. Another must-do is a 4WD tour (if your van has clearance or join a jeep tour) to Font’s Point at dawn or dusk – a short walk from the parking gives a jaw-dropping view over the badlands in golden light. If you’re not 4WD, you can still drive the van on firm sand to the Borrego Badlands Overlook off Hwy S22 for a similar experience (check at the visitor center for conditions). Come afternoon, transition to the coast: it’s only a 2-hour drive to San Diego’s beaches. In November the coast is mellow, with temps around 70°F and sea breezes. You could snag a site at Silver Strand State Beach on Coronado, where beachfront camping lets you BBQ with ocean waves in earshot. Take a stroll through Coronado’s charming streets or kayak in San Diego Bay (the State Beach has a bayside too, often calmer for paddling). Alternatively, camp at San Elijo State Beach in Encinitas, known for surfing – the water is cooler now (~60°F), but wetsuit-clad surfers still hit the gentle breaks. Enjoy a beach campfire (permitted in provided rings) and watch the sun dip into the Pacific, then perhaps gaze south – on very clear evenings you can see the lights of Tijuana. By combining Anza-Borrego’s quiet desert trails and San Diego’s laid-back coast, you’ll experience the best of both worlds. With low-season crowds, you might have a slot canyon or a surf spot practically to yourself, all in one sunshine-filled November day.

    December – Mild Winter Retreats

    • Death Valley National Park (CA)Desert. When much of the country is cold, Death Valley offers a balmy refuge. December average highs around 65°F in Furnace Creek make it one of the few places you can comfortably hike in shorts on a winter day. The sun hangs low, casting golden light on the badlands and sand dunes – photographers love this time of year. Set up at Furnace Creek Campground or Sunset Campground (both paved-access; Sunset is an open lot style, great for RVs/vans). Must-see spots: Hike Golden Canyon to Red Cathedral in the cool morning (the yellow and red hues of the canyon walls are amplified by winter sun angles), walk the surreal Mesquite Flat Sand Dunes near Stovepipe Wells at sunset (perhaps bring a sandboard for fun!), and visit Badwater Basin – at 282 feet below sea level, the salt flats gleam white and the air is a pleasant ~70°F even in mid-day. Consider an afternoon drive up to Dante’s View (5,000 ft) – it might be brisk up there, but you can see the entire valley floor and even Mount Whitney on an exceptionally clear day. Mountain biking is allowed on park roads – a popular ride is along West Side Road (a flat gravel route down the valley, passing salt flats and old borax sites). By December, the night skies are crystal clear and extremely dark – perfect for astronomy. Bundle up (nights can dip into the 30s°F) and perhaps catch the Geminids meteor shower that peaks mid-month. Many ranger programs run in winter – from guided walks to night sky parties at Harmony Borax Works. With the mild days, you can also venture into the rugged backcountry canyons – Marble Canyon or Sidewinder Canyon make great slot canyon hikes (check conditions and carry extra water, even in winter). Death Valley in December is the ultimate warm winter getaway, offering peaceful campouts, otherworldly scenery, and the freedom to roam some of the most extreme landscapes on earth in complete comfort.
    • Anza-Borrego Desert State Park (CA)Desert. California’s largest state park is pleasantly warm in December, with averages around 70°F in Borrego Springs. This is prime season for desert camping beneath starry skies. The Borrego Palm Canyon Campground (with some hookups and showers) is a convenient spot for vans, or for more seclusion, try the free dispersed camping on Clark Dry Lake or Yaqui Pass (easy access on dirt roads). Days are perfect for hiking – the Palm Canyon Trail is popular for likely bighorn sheep sightings near a year-round spring; the palms here create a cool microclimate where you might even picnic in shade while the surrounding desert is warm and sunny. Another great outing is to Font’s Point (a 4-mile dirt road one-way, usually fine for high-clearance vans) at sunrise – you’ll overlook the alien-looking Borrego Badlands as the sun paints them pink and orange. Off-road enthusiasts (with 4×4 toys) flock here in winter, but even without one, you can join a jeep tour to remote gems like Split Mountain or the Arroyo Tapiado Mud Caves – one of the largest mud cave systems in the world, where you can clamber inside (with a guide or proper preparedness). Mountain bikers enjoy the flat routes on dirt washes; try riding Borrego Mountain Wash to see wind-sculpted slot canyons and drop-offs (and check out “The Slot” – a narrow slot canyon hike – on foot). In town, Borrego Springs hosts Christmas Circle, a tiny park where holiday lights are strung on palm trees – a charming desert holiday vibe. Nighttime in the open desert can dip to mid-40s°F, so a campfire is welcome as you swap stories under Orion’s belt blazing overhead (Anza-Borrego is a designated Dark Sky Community). With wildlife like kit foxes and jackrabbits active in the cool weather, and early wildflowers sometimes starting by late February (if rains come), December camping here is both peaceful and rejuvenating – a fine time to reflect amid the beautiful emptiness of the desert.
    • Organ Pipe Cactus National Monument (AZ)Desert. Down by the Mexican border, Organ Pipe enjoys very mild winters – December days average in the upper 60s°F with plenty of sun. For those seeking a quiet holiday away from it all, this monument’s Twin Peaks Campground provides electric hook-ups in one loop (nice for a cozy van setup) and pristine dark nights. You’ll camp among organ pipe and saguaro cacti – which wear dusky colors in winter but stand as iconic silhouettes at sunrise and sunset. Daytime adventures could include the Puerto Blanco Drive, now partially open to high-clearance vehicles – in a van you might tackle the 5-mile section to Pinkley Peak and back. It’s a scenic drive where you can spot pronghorn or coyotes trotting through the creosote flats. Another must-do (accessible to all vehicles) is the Ajo Mountain Loop Drive. Along this 21-mile loop, stop to hike the Estes Canyon–Bull Pasture trail, a moderate 3-mile hike that climbs into the Ajo Mountains for a stunning view over the Sonoran plain dotted with cacti – the air is so clear you can see deep into Mexico. If you mountain bike, the campground to Kris Eggle Visitor Center road is a nice easy ride (paved), or try the 10-mile North Puerto Blanco dirt road (usually okay for bikes, watch for occasional sand). Border Patrol presence is noticeable but non-intrusive – this area is very remote and safe for visitors, just stick to park areas and heed any travel warnings if venturing off the beaten path. As Christmas nears, some campers string lights on their RVs or hold potluck dinners at Twin Peaks – there’s a friendly snowbird community that winters here. Whether you partake or just enjoy solitude, don’t miss walking the Campground Nature Trail one evening: the trail is short but offers a 360° view – often the Milky Way is brilliant, and you might even hear the howl of a distant wolf (actually likely a coyote chorus) on a calm night. Organ Pipe in December embodies peaceful desert living – mild days to wander among rare cactus stands, and cool starry nights to ponder the simple beauties of the season.
    • Silver Strand State Beach (CA)Coastal. If a beachfront holiday is more your style, Silver Strand SB in San Diego has you covered. December afternoons are typically ~65°F and sunny on the sand – certainly not swim weather for most, but perfect for beachcombing, castle-building, and watching Pacific waves. The campground here is basically a parking lot along the beach, but you can back your van right up to the sand; fall asleep to crashing waves and wake to sea gulls. It’s a unique urban-nature blend: on one side, you have the calm San Diego Bay (great for a morning kayak or paddleboard – rentals are available at Loews Coronado Bay Resort across the street), and on the other, the Pacific Ocean where you can surf fish for perch or guitarfish (December’s surf is moderate). Biking is a must-do: the Bayshore Bike Path runs right through the campground, offering a flat 10-mile (one-way) ride along Coronado’s shoreline into downtown San Diego with sweeping views – stop at Coronado Ferry Landing for a latte with the city skyline across the water. Holiday time in San Diego means you can hit unique events: Balboa Park’s December Nights festival early in the month, or see boat parades with decorated yachts in the Bay. But even on a quiet day, Coronado has charm – grab tacos at a local shop and picnic on the beach watching winter sunsets that often blaze orange and purple. Nights in the low 50s°F are mild; perhaps have a portable propane fire pit (allowed with rules) on the beach and toast marshmallows while the surf froths at your feet. By day, if you crave a hike, drive 20 minutes to Cabrillo National Monument – the tidepools there are the best in SoCal, and winter’s low tides (especially around the new moon) reveal starfish, octopuses, and more. For a final treat, consider a kayak tour in La Jolla (reservations needed) to explore sea caves – you might see sea lions and leopard sharks (harmless) in the clear water. The mix of a laid-back beach camp and San Diego’s festive yet easygoing winter atmosphere makes a Silver Strand trip a rejuvenating end to the year – flip-flops recommended even in December!

    Each of the above locations offers unique charms and moderate temperatures that beckon travelers year-round. Whether you’re chasing wildflower blooms in the desert, carving through alpine singletrack, paddling a mountain lake, or simply savoring a quiet sunset by the ocean, the western United States (plus Alaska in summer) provides an ever-changing palette of camping adventures to suit every month’s mood. These destinations feature the scenery, activities, and temperate climate (around 65–75°F daytime highs) that are perfect for van-based campers who seek hiking trails, scenic vistas, watersports, biking, and more – all while avoiding weather extremes. Happy camping!

    Sources: Climate data and park information were drawn from authoritative sources including the National Park Service, state park resources, and weather archives, ensuring each recommendation meets the target temperature range and activity profile. These references provide average high temperatures and seasonal insights, confirming that the suggested locations offer comfortable conditions and attractive features in the months listed.

  • Subfloor: Filling Floor Ridges vs. Leaving Them Empty

    Introduction

    Building a campervan subfloor in a van involves dealing with the factory metal floor, which has raised ridges (corrugations) with valleys in between. A common question among van builders is whether to fill those low valleys before adding insulation and subfloor. The decision can impact thermal performance, noise, and floor height. In fact, there are “two schools of thought” on this issue and endless debates online (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?). This guide will break down the pros and cons of filling vs. not filling the floor corrugations, and recommend best practices given your priorities:

    1. Maximize thermal insulation
    2. Reduce sound (noise)
    3. Minimize overall floor height buildup

    By drawing on van conversion experts and community experiences, we’ll help you decide the optimal approach for your Transit subfloor.

    Understanding the Transit Floor and Your Priorities

    The van’s cargo floor is thin metal stamped with corrugated ridges for strength. The ridges (~0.3–0.4″ high) create an uneven surface with hollow channels in between. When insulating and building a subfloor, you have to choose how to handle these channels (“valleys”). Key considerations include:

    • Thermal Insulation: The metal ridges act as thermal bridges – they conduct heat/cold easily. Insulation (like XPS foam boards) is used to cover the floor and slow heat transfer. Any uninsulated air gaps or exposed metal will reduce overall R-value. A continuous layer of insulation is ideal to keep the floor warm.
    • Sound Reduction: The van’s metal floor can resonate road noise and vibrations. Hollow cavities can amplify sound (drum effect), and wood-on-metal contact can lead to squeaks. Adding mass or damping material and decoupling layers can significantly cut noise.
    • Floor Height: Every inch of subfloor (insulation + plywood + flooring) eats into interior headroom. Many vanlifers aim to keep the floor build thin. However, going too thin can sacrifice comfort (cold, noisy floor) or structural stability. The challenge is to achieve good insulation and sound deadening with minimal thickness.

    Understanding these factors, let’s examine the two main approaches for the ridged floor: filling the valleys versus leaving them open under your XPS insulation.

    Option 1: Filling the Floor Valleys (Insulation Strips)

    What It Involves: Cutting pieces of insulation (or other material) to fit snugly in the low channels so they are flush with the tops of the metal ridges. Commonly, builders use strips of rigid foam (XPS or polyiso) or a closed-cell foam like minicell, glued in place. Some older methods use wood furring strips, but as we’ll see, that has drawbacks.

    Pros of Filling the Valleys:

    • Better Insulation & Sound Damping: Packing foam into the corrugations adds a bit more R-value and eliminates empty air cavities. This can slightly boost thermal performance and reduce noise compared to leaving them empty (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). The foam in the channels is additional insulation and also contacts the metal, potentially damping vibrations. One van builder notes it “gives you more insulation than just leaving air voids” (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife).
    • More Support for the Subfloor: With the valleys filled level, you create a flat, fully supported platform. Your top foam board and plywood will sit on continuous support rather than spanning gaps. This can reduce flexing and potential squeaks. FarOutRide (a respected van conversion blog) filled the ribs in their first van and noted it provided more support surface for the next layer (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). If your ridges are uneven height, filling makes sure there are no low spots.
    • Less Chance of Foam Compression: Although quality XPS foam is very rigid, having support in the valleys means any point load on the floor is distributed. This gives peace of mind that the foam won’t be crushed in the long term. Some builders who are “really paranoid about squeaks” or compression choose to fill because it’s a “proven process” (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife). (As we’ll discuss later, high-density foam can usually handle the load even without fillers.)
    • Leveling for Finished Floor: A filled floor is completely level metal-wise. This is helpful if you plan to glue down thin flooring directly. It also means any spills won’t immediately run to the center – though this is a double-edged sword (more on moisture below).

    Cons of Filling the Valleys:

    • Significant Extra Work: Nearly everyone agrees that cutting and fitting strips for every channel is tedious and time-consuming (How to Build an Insulated Subfloor in Your Van Conversion | by Jeremiah Luke Barnett | Medium). There can be dozens of strips to measure and cut. A DIYer who filled all grooves with 0.5″ Foamular board said “This was a very tedious process” (How to Build an Insulated Subfloor in Your Van Conversion | by Jeremiah Luke Barnett | Medium). It’s a lot of effort for what some consider marginal gains. FarOutRide ultimately decided the “return on investment [was] not worthwhile” for a full rib fill (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide).
    • Potential Moisture Trap: By filling the valleys, you essentially block those channels. Any water that does find its way under the floor (from condensation or a spill) can’t easily escape. The trapped moisture could sit against the metal and promote rust (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?). In contrast, an open channel could allow water to flow to a drain point or evaporate. One vanlifer mentioned they skipped filling because “if I ever have a major spill or leak it might be nice to have all those channels open for the spill to drain”, which indeed helped when a clogged drain caused a leak (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife). Thus, filling requires you to be confident in your water sealing and perhaps add drain holes or desiccants to mitigate corrosion risk.
    • Minimal Height Impact, But…: Filling the ridges itself doesn’t add height (you’re just bringing the low spots up to ridge level), but there’s a subtle effect: some people who fill with wood strips then lay plywood directly on the ridges/strips. This saves height but means no continuous foam above the ridges. If you instead fill with foam and still add a top foam board layer, you haven’t saved any height – you’ve just done more work to fully support it. In short, filling doesn’t really allow a thinner build; it’s usually done in addition to your planned insulation thickness.
    • Avoid Wood Furring for Insulation: A popular older method was to use wood slats in the valleys (for example, 1/4″ or 3/8″ wood strips) as anchoring points for the subfloor. However, wood is a thermal bridge – it conducts heat/cold better than foam. Using wood breaks your insulation layer and creates hot/cold stripes through the floor. As one guide cautions: “using wood furring strips to fill the corrugations… creates ‘thermal bridges’… basically a path for the cold from your metal floor, through the wood and into your finished floor. You need a solid layer of insulation between the metal and your finished floor.” (Insulating and Installing a Campervan Floor). If you need hard attachment points (for bolting down furniture), it’s better to use limited wood or metal only where required rather than across every rib. We’ll cover a hybrid approach in the best practices section.
    • Cost of Materials: Filling the ribs usually doesn’t require much additional material (foam board or strips are relatively cheap), but specialty foam like minicell can be expensive. Some builders like the FarOutRide “4-season” method use 1/4″ minicell foam sheets in the valleys for sound and anti-squeak. Minicell is great (doesn’t squeak, hydrophobic), but if you have to import it, it can be pricy. In one case, a builder in Canada found it would cost $300 extra to get minicell for filling, and was looking to skip it (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife). If cost or availability is an issue, you could use strips of the same XPS you already have (many have done this successfully (How to Build an Insulated Subfloor in Your Van Conversion | by Jeremiah Luke Barnett | Medium)). Just be aware to secure them well (spray adhesive works) so they don’t rattle loose.

    How to Fill Properly (If You Choose To): If you decide the benefits are worth the work, here are a few tips from the community:

    • Use foam, not wood: Preferably use closed-cell foam strips (XPS or minicell polyethylene foam). XPS has higher R-value (~5 per inch) (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide), while minicell has ~3.5 per inch but is softer and guarantees no squeaks (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). Both are closed-cell (won’t absorb water). Cut strips of the appropriate thickness (usually 1/4″–3/8″) to match the ridge height (Insulating and Installing a Campervan Floor). Glue them to the metal with a strong spray adhesive (3M 90 or similar) for a firm bond (Insulating and Installing a Campervan Floor). Ensure no gaps for best support.
    • Pre-template the floor: Use a cardboard template or the factory mat (if you have one) to mark where strips need to go. Some builders lay big sheets of foam first, then trace ridges, but it’s often easier to place strips first, then add the top layer.
    • Consider BedRug VanTred: If time is more precious than money, there’s a product called BedRug VanTred (or VanRug) which is a pre-shaped plastic/foam floor liner. It’s essentially a drop-in layer cut to your van’s exact floor shape, with a foam backing that fills the corrugations and a rubbery top surface. This can save hours of work: “Cutting out each individual piece of minicell foam and gluing them down is a tedious process… [BedRug gives] a custom fit floor template” out of the box (Insulating and Installing a Campervan Floor). The VanTred is about 1/2″ thick and provides around R-3 insulation (Insulating and Installing a Campervan Floor). The downside is cost (~$200-300) and slightly lower R-value than thicker foam boards. Still, many find the convenience worth it. (Image below: a VanTred cargo liner being installed – it unrolls to fill the ridges with its foam backing.)

    (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRideA drop-in BedRug VanTred cargo liner being installed in a Ford Transit. The foam-backed mat fills the floor’s corrugation valleys, providing a flat insulated surface. This is an alternative to cutting individual foam strips by hand.

    • Don’t block weep holes: Ensure any factory drain/weep holes in the floor remain clear or are relocated. If you fill over them, drill a small hole through the foam or floor layer so that if water does get under, it has an exit.
    • Treat the metal floor: Since filling can trap moisture, it’s wise to rust-proof the metal first. Clean any existing rust and apply a coat of rust-inhibitor paint (e.g. POR-15 or Rustoleum) (Van floor tips, climate considerations? | Expedition Portal). This extra step ensures that even if a bit of water sits in a valley, your metal is protected from corrosion.

    Option 2: Leaving the Valleys Unfilled (Floating Floor)

    What It Involves: In this approach, you do not put anything in the low grooves. You lay your insulation board (XPS, polyiso, etc.) on top of the ridges, effectively “bridging” over the valleys. Then you add your plywood subfloor on top. The foam and plywood span the gaps created by the ridges, and the space in the channels remains an air gap. In essence, the subfloor is supported only by the metal ridges and wherever the foam touches those high points.

    Pros of Not Filling:

    Cons of Not Filling:

    • Slightly Reduced Insulation & Soundproofing: Leaving the valleys empty does mean there’s a bit less material between you and the outside. You’ll have small air pockets instead of foam there. The metal ridges themselves are still exposed on the inside (they touch the underside of your foam board). So, in theory, a filled floor has marginally higher R-value and a bit more sound damping. FarOutRide notes the trade-off: not filling yields “a little less insulation [and] noise reduction” (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?). If you plan to camp in extreme cold, you might care about every fraction of an R-value. That said, many vanlifers (even in winter climates) report no noticeable difference – other factors (overall insulation thickness, etc.) have a bigger impact. For noise, the hollow channels could very slightly amplify sound, but in practice the difference can be mitigated (see best practices below).
    • Less Direct Support (Theoretical Concern): One worry is that without fillers, the plywood and foam are not supported in the middle of each span between ridges – potentially causing flex or foam compression under heavy loads. In practice, with quality materials and correct install, this has proven to be a non-issue. For instance, a van builder on Reddit pointed out that XPS is used under concrete slabs and doesn’t compress under a van’s furniture and occupants (Trying to understand why people use firing strips when doing subfloor in van. Is it not just as good to use adhesive and secure rigid foam then plywood then flooring? Would love feedback, especially from those with experience. : r/vandwellers). Another said, “Filler strips seem like a lot of work, but I don’t see the value… our floor is solid and there is no way it could wobble.” (Insulating floors…really necessary for conversion? | Sprinter-Source.com). The key is to use sufficiently thick foam and a strong top layer. If you use a very thin plywood (or none) and have a heavy point load, then yes, you could feel some flex. But with, say, 1/2″ plywood screwed down into the foam, the floor will feel firm. One caution: during installation, before the plywood is in, avoid stepping directly on the foam spanning a gap – you could crack it under your foot. “Just be somewhat careful to not crack it by walking or kneeling on the XPS on a rib until you install plywood,” one installer advises (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife). Once the subfloor sheathing is on, the load spreads out and this concern disappears.
    • Possible Squeaks or Movement: If the foam and plywood are not secured, there’s a chance of the assembly moving or rubbing slightly on the metal ridges over time. This can cause squeaking noises when driving or walking. Rigid foam against metal can squeak if there’s any flex. Without filler strips, you have fewer contact points (just the ridges). However, this can be addressed by proper installation: using adhesive or a thin cushioning layer so nothing is loose (we’ll detail this in best practices). FarOutRide mentions that XPS floors can squeak if no care is taken, but they solved it by adding glue and would still choose not to fill the whole floor (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). In short, an unfilled design might require a bit more attention to prevent noise, but it’s manageable.
    • Edge Support Gaps: In a Transit, the pattern of ridges might leave some spots (especially along the edges or corners) where there isn’t a ridge directly under part of the subfloor. For example, near the walls or the sliding door threshold, you could have an overhang. In a filled scenario, you likely would have placed a strip there; in an unfilled scenario, that spot would be unsupported. The solution is simply to add support only where needed (e.g. a small block or strip at the perimeter) without filling every valley. Even professional upfitters do this: “Some vans like the Transit also need some furring strips around the perimeter since the raised corrugations are not very close in these areas” (Van floor tips, climate considerations? | Expedition Portal). So, you might still add a few strategic supports – which isn’t really a “con,” just a modification to the pure empty approach.

    How to Succeed with an Unfilled Floor: If you choose not to fill the valleys, follow these best practices to ensure a quiet, sturdy, and well-insulated result:

    • Use High-Density Rigid Foam: You’re already planning XPS, which is perfect. XPS (extruded polystyrene, e.g. Owens Corning Foamular) has ~15-25 PSI compressive strength and R-5 per inch (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). Polyiso boards also work (slightly higher R (~6 per inch) but can lose R in very cold temps). Stick to 1/2″ or 3/4″ minimum thickness (many do 1″ for more insulation – according to one guide, the cost and headroom difference between 1/2″ and 1″ isn’t huge (Insulating and Installing a Campervan Floor)). Cut the foam boards to closely fit the floor shape and around wheel wells, etc., so they don’t shift. Do not use low-density EPS (the white beaded foam) – it can crush and squeak.
    • Consider a Thin Decoupling Layer: One clever trick to avoid squeaks is to lay a thin layer of foam or fabric over the metal floor before the rigid foam boards. For example, a 1/8″ closed-cell foam (Minicell or even a yoga mat) or strips of it on top of each metal rib. This thin foam will compress slightly and act as a cushion so that the plywood/foam above isn’t rubbing hard on metal. It also adds a tiny bit of insulation over the ridge peaks (since those are essentially uninsulated contact points). Some van builders roll out a layer of 3M Thinsulate acoustic insulation (which is about 1/4″ thick and compressible) across the floor for the same purpose (Van floor tips, climate considerations? | Expedition Portal). “Roll it out then put your floor on it” – it’s super easy, reports one engineer, noting that “Thinsulate is adequate and offers better noise reduction” while Minicell is a bit more supportive (Van floor tips, climate considerations? | Expedition Portal). The Thinsulate will crush down where the ridges are, but still provide a buffer. This step is optional – your floor will work without it – but if road noise and squeaks bother you, it’s a good addition with negligible height impact.
    • Adhere the Foam to the Metal: Another way to eliminate movement and noise is to glue the foam boards down to the metal floor (at least along the ridges). Using an adhesive (like 3M spray or even construction adhesive in a zigzag) between the XPS and the metal will stop the foam from shifting or bouncing in the gaps. FarOutRide emphasizes this in hindsight: “Don’t cheap out on glue at the metal/XPS interface (top of grooves); use lots of it to achieve uniform coverage” (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). By effectively bonding the foam to the floor, you create a laminated structure that is less prone to squeaks. In FarOutRide’s second van, they did not fill the ribs and reported a couple of squeaks, but they chased them down by adding more adhesive, and then it was solid (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). They still “wouldn’t fill the valleys” completely in the future, preferring strategic support only where needed (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide).
    • Screw the Subfloor Securely (but floating is okay): Once the foam is down, lay your plywood on top. Many builders actually “float” the floor – meaning they do not bolt or screw the plywood into the metal; it’s held down by its own weight and the furniture on top. This floating approach further decouples vibrations (less noise transfer) (Van floor tips, climate considerations? | Expedition Portal). If you go this route, just make sure the plywood pieces are tightly fit edge-to-edge and walls so they can’t slide. You can tape the seams or use a few dabs of adhesive between foam and plywood to keep it in place during the build. If you choose to mechanically fasten the plywood to the van (some prefer a couple screws to prevent any shift or to reuse factory D-ring bolt holes), be careful: compressing the foam with a screw can crumple it. A pro tip is to insert small spacers or sleeves at the bolt locations – e.g. a short piece of wooden dowel or hard plastic tube the height of the foam – so when you tighten the screw, it pinches against that and not the foam. Builders “recommend PVC lumber furring strips or blocks where cabinets and other items are through-bolted… to keep the insulation from compressing when the bolts are tightened” (Van floor tips, climate considerations? | Expedition Portal). This way, you still don’t have wood everywhere, just at bolt points. If you’re not bolting anything through the floor, you can avoid this entirely.
    • Add Sound Deadening to Metal (if needed): Since an unfilled floor leaves some metal exposed to air (inside that channel), you can pre-treat the metal to kill noise. Applying some CLD sound deadening mats (like Dynamat, Noico, etc.) on the floor will greatly reduce vibration resonance. You don’t need 100% coverage; even 25% coverage with patches is enough to dampen the “drum” effect. For instance, one van owner covered the entire floor with sound deadening mats and rubber pads before his plywood (overkill for most) (Van floor tips, climate considerations? | Expedition Portal). Even sticking a strip inside a few of the longer channels or on broad metal panels between ridges will quiet things down. This is something you can do regardless of fill vs. no-fill – it’s just easier to access the bare floor before the foam goes in. It will address road noise better than foam does (foam is more for thermal insulation, whereas butyl sound mats add mass to stop vibration).
    • Edge and Span Supports: As mentioned, identify any sections where your plywood might not have support for a long distance. Common areas are the perimeter edges of the floor, the ends of the van, or around any large openings (like a floor vent or seat bases if you removed them). You can cut a few strips of foam (or use scrap wood/plastic) to fill just those spots. FarOutRide’s refined approach was exactly this: they “wouldn’t fill the valleys on the floor, but [would] strategically add XPS or Minicell mini-strips where there is no support over large surfaces, especially near the edges… [like] near the sliding door, around the shower pan cutout, and near the front edge” (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). Think of it as spot-filling only where needed for structure. This keeps most of the floor simple and open, but shores up any weak points. It’s a great compromise to meet all three of your priorities.

    Comparison of Approaches (Summary)

    Both methods – fully filling the ribs or leaving them empty – can and do work. In fact, FarOutRide has used each approach on different builds (filled on their first van, unfilled on their second) and observed success in both (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). Here’s a quick recap of the trade-offs, as highlighted by experienced van builders:

    • Thermal Insulation: Filling can add a little extra R-value, but a continuous foam layer on top is far more critical. In practice, 1″ of XPS plus 1/2″ plywood is sufficient for winter vanlife even without filling, according to FarOutRide (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). They deliberately chose not to fill in their 4-season build and stayed warm, even in freezing conditions, with insulated walls/ceiling and a heater (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife). If absolute maximum R-value is needed, fill the gaps with foam – but most find it not strictly necessary for comfort.
    • Sound and Vibration: A filled floor has more contact and mass on the metal, which can dampen noise slightly. An unfilled floor can be just as quiet if you add other sound treatments (mats, foam underlayment). Squeaking is more about installation quality than fill vs. not. Use foam that doesn’t squeak (minicell) or add adhesive to prevent rubbing. Many van owners report no noticeable noise difference between the two methods (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?), especially once furniture and flooring are added (which tend to suppress sound anyway).
    • Moisture Handling: This is arguably the biggest functional difference. If you’re in wet climates or worried about spills (imagine a leaky cooler or plumbing leak in the van), an open-channel floor gives you a hidden “drip tray” that might save you from unseen puddles. A filled floor demands more vigilance sealing up every possible water entry and maybe periodically checking under the floor if you suspect water. Neither approach is immune to condensation under the floor – you should always have a vapor barrier or rust protection on the metal – but leaving an air gap at the lowest point means any moisture has somewhere to go. This consideration often tips people in favor of not filling in humid or variable climates (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?).
    • Build Complexity: If this is your first van build or you’re on a tight timeline, not filling the ribs simplifies the project. It’s one less task. On the other hand, if you enjoy detailed work and want the satisfaction of “doing everything you can,” filling with foam isn’t that hard, just tedious. Some find it an easy step for peace of mind: “You probably don’t need to, but it’s very easy, not expensive, and a proven process,” said one Redditor, who didn’t want to risk any squeaks (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife). So, consider your tolerance for extra work versus the perceived benefit.

    To quote a balanced perspective from FarOutRide’s review of this topic: “Both methods are commonly found in van conversions, but we still haven’t seen any real-world, long term evidence proving for sure that one method is definitely wrong.” (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?) In other words, neither choice will make or break your build as long as it’s done thoughtfully. Many vans have hit the road with unfilled floors and many with filled floors – both can last for years without issue.

    Recommendations for Your Build

    Given your priorities (thermal first, then sound, then minimizing height), here is a recommended path forward:

    • Use a Continuous Insulation Layer: Ensure you cover the entire floor with XPS foam board (at least 1/2″, up to 1″ if you can afford the height). This addresses the bulk of your insulation needs. It also provides a decoupling layer for sound. The metal ridges will contact the foam, but that’s okay. Cut the foam panels to fit edge to edge. If possible, stagger the seams of the foam and the plywood (don’t have all seams lining up) to avoid a weak line (How to Build an Insulated Subfloor in Your Van Conversion | by Jeremiah Luke Barnett | Medium).
    • Spot-Fill Key Areas Only: Rather than filling every groove, cut a few strips of foam or use scrap wood/PVC only in strategic spots: along the outer edges of the floor (where the plywood might otherwise flop into a channel), and any area you anticipate a point load that falls between ridges (for example, the landing point of a heavy partition or the base of a cabinet that isn’t over a ridge). This ensures you maintain support where it’s truly needed (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). You’ll still leave most valleys open for airflow.
    • Add a Thin Noise Buffer on Ridges: For extra credit, lay strips of thin minicell foam or even duct-tape some pieces of rubber on top of the metal ridges before dropping the foam boards in. This will prevent the foam-on-metal squeak potential and add a hair more insulation over the rib peaks. It’s a low-effort step that many recommend if skipping full fills. (Alternatively, a full sheet of 1/8″ foam under the XPS as discussed will achieve the same effect.)
    • Secure the Layers: Glue the XPS to the metal floor, and also glue or at least tightly screw the plywood to the XPS (screwing down into the foam, using large washers or plates to spread load, works well). By essentially laminating the floor layers together, you create one stiff assembly that won’t shift or creak. If you prefer not to glue for removability, you can skip gluing the foam to metal – but definitely glue the plywood to the foam or use a few screws through to the metal at the edges. The aim is to eliminate any slipping. A well-bonded foam-plywood floor will feel as solid as one attached directly to metal.
    • Sound Deadening: Before installing the foam, stick some sound deadener patches in the middle of a few floor panels (the large flat areas between ridges) to kill resonance. Additionally, consider your finished flooring – a layer of vinyl plank, rubber coin flooring, or carpet will all help absorb noise and add a bit of thermal break on top. If you do all this, the difference between filled vs unfilled valleys in terms of road noise will be negligible.
    • Monitor and Ventilate: Whichever way you build, occasionally check under the mats or edges for any signs of moisture in the first few months (especially if you travel from cold to warm climates which can cause condensation). If you ever spill a large amount of water inside, make sure to lift a corner of the flooring and let the channels dry out. You can even drill a couple small holes through the floor (in inconspicuous spots) and seal them with rubber grommets – these can act as drains or inspection ports. Many vans come with factory holes that you can utilize for this purpose. Keeping an eye on this will ensure longevity of your floor and van metal.

    Bottom Line: For maximizing insulation and minimizing height – focus on a thick continuous insulation layer (and avoid wood thermal bridges). For sound – use damping materials and secure, squeak-free assembly. Fully filling every valley with foam is optional; it will give a minor boost in R-value and potentially peace and quiet, but many experienced builders feel it’s not strictly required (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (Trying to understand why people use firing strips when doing subfloor in van. Is it not just as good to use adhesive and secure rigid foam then plywood then flooring? Would love feedback, especially from those with experience. : r/vandwellers). In fact, several experts explicitly chose not to fill in order to save work and allow moisture egress, and they have “plenty warm” vans with quiet floors (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife) (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide).

    Given your priorities, a hybrid approach is likely best: do not fill all valleys, but do add foam where it counts (edges or large spans) and implement sound/insulation measures as described. This approach was echoed by FarOutRide’s later recommendation and others in the community as a smart compromise (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide). You’ll achieve nearly the same thermal performance and silence as a fully filled floor, without the extra labor or risk of trapped moisture. And you won’t increase your floor height unnecessarily.

    Lastly, it’s worth noting that the van conversion community has had success with both methods. As one forum member aptly put it, after seeing many builds: “Both methods are common… we haven’t seen proof that one is definitely wrong” (Bedrug VanTred Cargo Liner: Drop-In Floor Insulation for Vans?). Focus on the overall quality of your insulation install and make sure your subfloor is well secured. If you do that, you can feel confident whether or not you filled the little grooves.

    Sources & Community Insights: This recommendation is based on a compilation of van builder experiences and expert advice, including FarOutRide’s floor insulation guide (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide), discussions from van forums and Reddit (r/VanLife and r/vandwellers) (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife) (Trying to understand why people use firing strips when doing subfloor in van. Is it not just as good to use adhesive and secure rigid foam then plywood then flooring? Would love feedback, especially from those with experience. : r/vandwellers), and professional upfitter tips (DIYVan/Hein and others) (Van floor tips, climate considerations? | Expedition Portal). These sources reflect a broad consensus that structurally, XPS foam and plywood are sufficient on their own, and that strategic support plus good installation practices will meet your goals. In summary: you do not strictly “need” to fill the Transit’s floor ribs, but doing so with foam strips is a valid method if you choose. With the hybrid approach recommended, you’ll maximize insulation and sound control while keeping the floor profile low – hitting all three of your priorities. Enjoy your van build!

    (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (DIY Van Floor – Insulation, Subfloor & Covering Install Guide – FarOutRide) (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife) (Do I need to fill the ribs in my floor before laying XPS? : r/VanLife) (Trying to understand why people use firing strips when doing subfloor in van. Is it not just as good to use adhesive and secure rigid foam then plywood then flooring? Would love feedback, especially from those with experience. : r/vandwellers)