FallPeak season ~75°F highs

Things to do in Long Island in September

September is one of the best months to visit Long Island, with average highs around 75°F. Beach season runs Memorial Day to September; North Fork harvest in fall.

Plan a September weekend Where else in September

Best picks for September

What's famous here, weighted toward what shines in September.

1Foliage walks

Bethpage State Park

state park in Bethpage, New York

2Foliage walks

Camp Hero State Park

State park in New York, United States

3Foliage walks

Fire Island National Seashore

Holidays in September 2027

Labour Day · Mon, Sep 6

Expect busier roads and pricier stays around these dates. See long weekends.

Also great in September in New York

New York City Finger Lakes Hudson Valley Niagara Falls

Long Island in September: quick answers

Is September a good time to visit Long Island?

September is one of the best months to visit Long Island, with average highs around 75°F. Beach season runs Memorial Day to September; North Fork harvest in fall.

What is the weather like in Long Island in September?

Average daytime highs are around 75°F, compared with 85°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.

What are the best things to do in Long Island in September?

Top picks for September: Bethpage State Park, Camp Hero State Park, Fire Island National Seashore, Heckscher State Park, Hither Hills State Park.