Jersey City weather in September 2025

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

  • 25°C maximum daytime temperature in September in Jersey City25
    25°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Jersey City8
    8 days with some rainfall
  • 15°C minimum night-time temperature in September in Jersey City15
    15°C min night temperature
  • 12 hours of daylight per day in September in Jersey City12
    12 hours of daylight per day
  • No heat & humidity in September in Jersey City0
    No heat & humidity
  • 96 mm monthly rainfall in September in Jersey City96
    96 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Jersey City6
    6 (High) UV index
  • 21°C sea temperature in September in Jersey City21
    21°C sea temperature

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The September weather guide for New Jersey (Jersey City) 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 Jersey City in September?

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

How sunny is it in Jersey City in September?

There are normally 7 hours of bright sunshine each day in Jersey City in September - that's 58% of daylight hours.

How warm is the sea around Jersey City in September?

The average sea temperature around Jersey City in September is 21°C.

Does it rain in Jersey City in September?

There are usually 8 days with some rain in Jersey City in September and the average monthly rainfall is 96mm.

What is the chance of a hurricane in Jersey City in September?

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

Jersey City September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:24 18:28
Monday, 15th September 2025 05:37 18:05
Tuesday, 30th September 2025 05:52 17:40

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