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New Jersey weather in September 2025
Expect 25°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in New Jersey in September. Check more long-term weather averages for New Jersey in September before you book your next holiday to New Jersey in 2025/2026.
- 25°C max day temperature
25 - 7 hours of sunshine per day
- 8 days with some rainfall
8 - 14°C min night temperature
14 - 12 hours of daylight per day
12 - No heat & humidity
0 - 102 mm of monthly rainfall
102 - 6 (High) UV index
6
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Recommended for New Jersey
The September weather guide for New Jersey (Newark) 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.
Top New Jersey destinations
Below are average maximum temperatures at popular countries, regions and places in New Jersey in September. Select a holiday destination to see more weather parameters.
All New Jersey destinations
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in New Jersey in September?
Daytime temperatures usually reach 25°C in Newark, New Jersey in September with no heat and humidity, falling to 14°C at night.
How sunny is it in New Jersey in September?
There are normally 7 hours of bright sunshine each day in Newark, New Jersey in September - that's 57% of daylight hours.
Does it rain in New Jersey in September?
There are usually 8 days with some rain in Newark, New Jersey in September and the average monthly rainfall is 102mm.
What is the chance of a hurricane in New Jersey in September?
On average less than 1 day in September in Newark, New Jersey is likely to be affected by the passage of one or more tropical storms.
New Jersey September sunrise & sunset times
Browse the sunrise and sunset times for New Jersey in September 2025. Select a month to view New Jersey sunrise and sunset times for the next 12 months. The New Jersey sunrise and sunset times shown below are for Newark.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st September 2025 | 05:24 | 18:28 |
| Monday, 15th September 2025 | 05:38 | 18:05 |
| Tuesday, 30th September 2025 | 05:53 | 17:40 |
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