Seaside Heights weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Seaside Heights in September. Check more long-term weather averages for Seaside Heights in September before you book your next holiday to New Jersey in 2025/2026.

  • 25°C maximum daytime temperature in September in Seaside Heights25
    25°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Seaside Heights8
    8 days with some rainfall
  • 15°C minimum night-time temperature in September in Seaside Heights15
    15°C min night temperature
  • 12 hours of daylight per day in September in Seaside Heights12
    12 hours of daylight per day
  • No heat & humidity in September in Seaside Heights0
    No heat & humidity
  • 87 mm monthly rainfall in September in Seaside Heights87
    87 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Seaside Heights6
    6 (High) UV index
  • 21°C sea temperature in September in Seaside Heights21
    21°C sea temperature

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The September weather guide for New Jersey (Seaside Heights) 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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How hot is it in Seaside Heights in September?

Daytime temperatures usually reach 25°C in Seaside Heights in September with no heat and humidity, falling to 15°C at night.

How sunny is it in Seaside Heights in September?

There are normally 7 hours of bright sunshine each day in Seaside Heights in September - that's 60% of daylight hours.

How warm is the sea around Seaside Heights in September?

The average sea temperature around Seaside Heights in September is 21°C.

Does it rain in Seaside Heights in September?

There are usually 8 days with some rain in Seaside Heights in September and the average monthly rainfall is 87mm.

What is the chance of a hurricane in Seaside Heights in September?

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

Seaside Heights September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:24 18:27
Monday, 15th September 2025 05:38 18:04
Tuesday, 30th September 2025 05:52 17:40

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