East Hampton weather in September 2025

Expect 23°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in East Hampton in September. Check more long-term weather averages for East Hampton in September before you book your next holiday to New York in 2025/2026.

  • 23°C maximum daytime temperature in September in East Hampton23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in East Hampton8
    8 days with some rainfall
  • 12°C minimum night-time temperature in September in East Hampton12
    12°C min night temperature
  • 12 hours of daylight per day in September in East Hampton12
    12 hours of daylight per day
  • No heat & humidity in September in East Hampton0
    No heat & humidity
  • 95 mm monthly rainfall in September in East Hampton95
    95 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in East Hampton6
    6 (High) UV index
  • 20°C sea temperature in September in East Hampton20
    20°C sea temperature

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The September weather guide for New York (East Hampton) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about New York

How hot is it in East Hampton in September?

Daytime temperatures usually reach 23°C in East Hampton in September, falling to 12°C at night.

How sunny is it in East Hampton in September?

There are normally 8 hours of bright sunshine each day in East Hampton in September - that's 60% of daylight hours.

How warm is the sea around East Hampton in September?

The average sea temperature around East Hampton in September is 20°C.

Does it rain in East Hampton in September?

There are usually 8 days with some rain in East Hampton in September and the average monthly rainfall is 95mm.

What is the chance of a hurricane in East Hampton in September?

On average less than 1 day in September in East Hampton is likely to be affected by the passage of one or more tropical storms.

East Hampton September sunrise & sunset times

Browse the sunrise and sunset times for East Hampton in September 2025. Select a month to view East Hampton sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:16 18:21
Monday, 15th September 2025 05:30 17:57
Tuesday, 30th September 2025 05:45 17:32

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