Cape May weather in September 2025

Q: 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.

Q: 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.

Q: How warm is the sea around Cape May in September?

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

Q: 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.

Q: What is the chance of a cyclone 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.

Expect 77°F 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.

77
77°F max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
59
59°F min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
3.3
3.3 inches of monthly rainfall
7
7 (High) UV index
72
72°F sea temperature

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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) | Imperial (°F)

More about the USA

How hot is it in Cape May in September?

Daytime temperatures usually reach 77°F in Cape May in September with low heat and humidity, falling to 59°F 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 72°F.

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 3.3 inches.

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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New Jersey - quick facts
Flight time^✝	8 hours
Time difference	UK -5 hours
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