New Hampshire by month · 9 of 12

New Hampshire RV rental in September

Prime month

September falls inside New Hampshire's best RV window (May to October).

White Mountains are accessible and fall foliage is world-class; winters are long, cold, and snowy.

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Published by PickRV

Cited primary sources

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Updated July 17, 2026

Pub July 10, 2026

September on the ground

Weather & conditions

Crisp air, first color in the high country. Highs near 72°F, lows near 49°F.

September is the state's prime month — summer's access without its crowds, and the color season beginning right on schedule.

What to do in September

Early foliage touching the high notches late month
Quieter trail days after Labor Day
Harvest stands and apple orchards opening

Best-fit rigs: Motorhome · Truck or van

Know before you go

Frosts return to the North Country in September; summit conditions turn wintry early.

Black flies peak in June. Fall foliage weekends bring heavy traffic and full campgrounds.

Seasonal spectacles, sourced

What September looks like in New Hampshire

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.

Fall foliage
New Hampshire fall foliage
“late September to late October”
White Mountains / Kancamagus Highway, Lakes Region, Monadnock Region · RV base: Crawford Notch State Park
NH Fall Foliage Report

From the verified event registry

September events in New Hampshire

No verified large-scale September events in our New Hampshire registry yet — we only list events we can date and source, never filler. The full calendar tracks what's confirmed.

New Hampshire events calendar

Trip notes

September tips for New Hampshire

Layer up: shoulder-pattern days can swing from a chilly dawn to t-shirt warmth by afternoon.
Pack rain gear and leveling mats for soft or wet sites.
Carry a weather radio and check forecasts daily — transitional months turn fast.
Daylight shrinks noticeably — plan arrivals before dusk.

Keep planning

Plan the New Hampshire trip

Nearby & related

Keep planning New Hampshire

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

New Hampshire in September — FAQ

Is September a good month for an RV trip in New Hampshire?

September falls inside New Hampshire's best RV window (May to October). Our New Hampshire registry tracks 1 seasonal highlight for September, each with its own official source.

What's the weather like in New Hampshire in September?

Crisp air, first color in the high country. Highs near 72°F, lows near 49°F.

What is there to see in New Hampshire in September?

New Hampshire fall foliage (late September to late October). Every window is quoted verbatim from its official source.

How much does an RV rental cost in New Hampshire in September?

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