California by month · 9 of 12

California RV rental in September

Prime month

September falls inside California's best RV window (March to May and September to November).

Coastal and mountain areas avoid the worst summer heat and winter rains; wildflowers in spring and clear fall skies are ideal for RV travel.

Browse California rigs What a California trip really costs

PickRV

Published by PickRV

Cited primary sources

No paid reviews

Updated July 17, 2026

Pub July 10, 2026

September on the ground

Weather & conditions

Cooling. Highs 70-90°F.

Excellent shoulder month. Sierra still accessible; fall color coming.

What to do in September

Sierra fall color beginning
Wine country harvest
Coastal pleasant
Death Valley returning to comfort
Smaller crowds

Best-fit rigs: Motorhome · Truck or van · Classic touring

Know before you go

Wildfire risk continues through September. Wine country fills weekends.

Wildfire season July-October can close roads and campgrounds with short notice. Winter snow closes high passes.

Seasonal spectacles, sourced

What September looks like in California

Timing windows below are quoted verbatim from each official source — nature shifts year to year, so always check the source before you route a trip around it.

Bird migration
Lower Klamath National Wildlife Refuge (Klamath Basin)
“Spring and fall waterfowl migration (fall numbers typically build into late autumn); wintering bald eagles present in winter. Timing varies year to year with water conditions.”
Klamath Basin on the California–Oregon border; Lower Klamath NWR straddles the state line south of Klamath Falls, OR · RV base: Day-use only — the refuge has a wildlife-viewing auto-tour but no camping. Nearest RV bases are private RV parks and campgrounds around Klamath Falls, Oregon (about 20–25 miles north), and in the Tulelake, California area.
U.S. Fish & Wildlife Service — Lower Klamath NWR
Harvest season
Apple Hill (El Dorado County)
“Apple-picking season runs late August to early November; pumpkin U-pick each October”
Foothill towns of Camino, Placerville and Pollock Pines, El Dorado County, between Sacramento and Lake Tahoe, California · RV base: Sly Park Recreation Area at Jenkinson Lake near Pollock Pines (about 5-6 miles off Highway 50) - a year-round area with roughly 190 campsites across multiple campgrounds; the Hilltop camp accommodates some larger RVs (an EID/county-managed recreation area, RVs up to about 40 ft, not full-hookup resort camping).
Visit California (official state travel site)
Tide pools
Point Reyes Tide Pools (Sculptured Beach & Duxbury Reef)
“Visit on a minus low tide, arriving at least an hour before the lowest point and heading back within an hour after it turns; late September–early November offers some of the clearest conditions (not every low tide is a minus tide)”
Point Reyes National Seashore, Marin County, CA — Sculptured Beach (a 2-mile walk south of Limantour Beach) and nearby Duxbury Reef near Bolinas · RV base: Point Reyes has only hike-in/boat-in backcountry camps (no RV sites or hookups), so it's effectively day-use for RVs — base at a Marin/Olema-area or Sonoma Coast RV park and drive in for the low tide
NPS — Tidepooling at Point Reyes National Seashore

From the verified event registry

September events in California

Trip notes

September tips for California

Nights dip to freezing or below: insulated water hose, tank protection or a winterized rig, and extra propane.
Carry traction boards and check chain requirements before any mountain route.
Plan shorter driving days — winter-pattern daylight is limited and campground offices close early.
Daylight shrinks noticeably — plan arrivals before dusk.

Keep planning

Plan the California trip

Nearby & related

Keep planning California

Sourced costs, campground directories, and the places worth a detour — the next layer of California trip planning.

California in September — FAQ

Is September a good month for an RV trip in California?

September falls inside California's best RV window (March to May and September to November). Our California registry tracks 5 dated events and 3 seasonal highlights for September.

What's the weather like in California in September?

Cooling. Highs 70-90°F.

What is there to see in California in September?

Lower Klamath National Wildlife Refuge (Klamath Basin) (Spring and fall waterfowl migration (fall numbers typically build into late autumn); wintering bald eagles present in winter. Timing varies year to year with water conditions.); Apple Hill (El Dorado County) (Apple-picking season runs late August to early November; pumpkin U-pick each October); Point Reyes Tide Pools (Sculptured Beach & Duxbury Reef) (Visit on a minus low tide, arriving at least an hour before the lowest point and heading back within an hour after it turns; late September–early November offers some of the clearest conditions (not every low tide is a minus tide)). Every window is quoted verbatim from its official source.

How much does an RV rental cost in California in September?

Rates on PickRV are host-set and shown at checkout — we don't publish a fabricated "California in September" average. The real, sourced costs around the rental (fuel, camping, park entry, tax) are broken down on our California cost page, and the only add-ons at checkout are a flat 10% service fee and state tax, both itemized.