Cape May weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cape May in September. Check more long-term weather averages for Cape May in September before you book your next holiday to New Jersey in 2025/2026.

  • 25°C maximum daytime temperature in September in Cape May25
    25°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Cape May8
    8 days with some rainfall
  • 15°C minimum night-time temperature in September in Cape May15
    15°C min night temperature
  • 12 hours of daylight per day in September in Cape May12
    12 hours of daylight per day
  • Low heat & humidity in September in Cape MayL
    Low heat & humidity
  • 83 mm monthly rainfall in September in Cape May83
    83 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Cape May7
    7 (High) UV index
  • 22°C sea temperature in September in Cape May22
    22°C sea temperature

More about Cape May

Cape May by month

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The September weather guide for New Jersey (Cape May) 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 the USA

How hot is it in Cape May in September?

Daytime temperatures usually reach 25°C in Cape May in September with low heat and humidity, falling to 15°C at night.

How sunny is it in Cape May in September?

There are normally 8 hours of bright sunshine each day in Cape May in September - that's 61% of daylight hours.

How warm is the sea around Cape May in September?

The average sea temperature around Cape May in September is 22°C.

Does it rain in Cape May in September?

There are usually 8 days with some rain in Cape May in September and the average monthly rainfall is 83mm.

What is the chance of a hurricane in Cape May in September?

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

Cape May September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:29 18:30
Monday, 15th September 2025 05:41 18:07
Tuesday, 30th September 2025 05:55 17:43

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