Weather in New York City in September
September in New York City is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.
In United States, this is how New York City actually wears September, not how a country centroid would. Compared with July and January, September sits in the middle of New York City's year.
- Average temp
- 21°C
16–26°C
- Rainfall
- 97 mm
Showers likely
- Sunshine
- —
- Wind
- 14 km/h
What to expect
Daytime
Warm days in New York City in September. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.
You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.
Rain
Mixed skies in New York City in September. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.
Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.
Evening
Evenings are cooler. A layer helps after sunset.
What to pack
Rain jacket
A layer for cooler evenings
Where to stay in New York City
Dates are a starting point for September.
Travel guides for New York City
What to read before you book.
Average weather in New York City
TemperatureRainfall
Similar weather in September
Other destinations whose September averages sit close to this one.
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FAQs about New York City
Climate averages for New York City, 1991–2020.
The best time to visit New York City is between May and October, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 26°C.
July is the wettest month, with about 119 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
