New Jersey by month · 9 of 12
New Jersey RV rental in September
September falls inside New Jersey's best RV window (May to October).
Coastal and pine barrens summers are pleasant; winters are cold with occasional nor'easters.
PickRV
Published by PickRV
September on the ground
Weather & conditions
Softer light, warm water, thinning crowds. Highs near 78°F, lows near 59°F.
September is the insider's shore month — and Cape May becomes one of North America's great migration stages as the month turns.
What to do in September
- Cape May Hawkwatch beginning its famous fall count (heaviest flights ride cold fronts from late September)
- Post-Labor Day beach days without the bustle
- Monarch butterflies staging along the dunes
Best-fit rigs: Motorhome · Truck or van
Know before you go
Hurricane-season peak runs through September; surf and rip currents strengthen even on sunny days.
Summer beach traffic is heavy on weekends. Nor'easters can flood coastal campgrounds in fall and winter.
Seasonal spectacles, sourced
What September looks like in New Jersey
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
Cape May Point State Park (Cape May Hawkwatch)
“Fall migration: hundreds of hawks are counted heading south down the peninsula, with the heaviest flights typically on cold fronts from late September through November”
Cape May Point, Cape May County, at the southern tip of New Jersey on the Delaware Bay · RV base: Day-use only — the 244-acre state park (gate hours roughly 8am–8pm) has a hawk-watch but no camping. Nearest RV bases are private campgrounds and RV resorts in the Cape May / Lower Township area of southern New Jersey, a few miles from the point.
NJ Dept. of Environmental Protection — Cape May Point State Park
From the verified event registry
September events in New Jersey
No verified large-scale September events in our New Jersey registry yet — we only list events we can date and source, never filler. The full calendar tracks what's confirmed.
New Jersey events calendarTrip notes
September tips for New Jersey
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 Jersey trip
Nearby & related
Keep planning New Jersey
Sourced costs, campground directories, and the places worth a detour — the next layer of New Jersey trip planning.