Weather in Atlantic City, New Jersey for September 2025
Until now, September 2025 in Atlantic City has been nearly identical to the historical average, with a temperature of 22.2 °F (showing only a slight deviation of -0.5 °F).
The forecast for the next days in Atlantic City predicts temperatures to be around 22 °F, close to the historical average.
In general, the average temperature in Atlantic City at the beginning of September is 22.6 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 20 °F by the end of September.
Atlantic City in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 297.9 mm.
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Atlantic City Weather September
Temperatures trend during September in Atlantic City
September weather in Atlantic City day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 23° /20° | 6.5 mm | 6 | |
| Sept. 2 |  Overcast | 24° /19° | 0.2 mm | 5 | |
| Sept. 3 |  Sunny | 20° /17° | 0 mm | 5 | |
| Sept. 4 | Overcast | 21° /17° | 0 mm | 5 | |
| Sept. 5 | Patchy rain possible | 24° /20° | 0 mm | 6 | |
| Sept. 6 | Patchy rain possible | 23° /20° | 0.5 mm | 5 | |
| Sept. 7 | Light rain shower | 23° /16° | 30.4 mm | 5 | |
| Sept. 8 | Sunny | 22° /14° | 0 mm | 6 | |
| Sept. 9 | Sunny | 22° /16° | 0 mm | 6 | |
| Sept. 10 | Sunny | 23° /18° | 0 mm | 6 | |
| Sept. 11 | Sunny | 24° /18° | 0 mm | 7 | |
| Sept. 12 | Sunny | 24° /19° | 0 mm | 6 | |
| Sept. 13 |  Partly cloudy | 23° /18° | 0 mm | 1.4 | |
| Sept. 14 | Sunny | 24° /19° | 0 mm | 0.9 | |
| Sept. 15 |  Cloudy | 21° /19° | 0 mm | 1.4 | |
| Sept. 16 | Partly cloudy | 22° /19° | 0 mm | 1.4 | |
| Sept. 17 | Sunny | 22° /19° | 0 mm | 0 | |
| Sept. 18 | Patchy rain possible | 22° /18° | 0.3 mm | 4 | |
| Sept. 19 | Sunny | 25° /19° | 0 mm | 6 | |
| Sept. 20 | Sunny | 25° /21° | 0 mm | 6 | |
| Sept. 21 | Patchy rain possible | 25° /18° | 0.4 mm | 5 | |
| Sept. 22 | Patchy rain possible | 18° /17° | 0.7 mm | 4 | |
| Sept. 23 | Patchy rain possible | 19° /17° | 3.8 mm | 4 | |
| Sept. 24 | Patchy rain possible | 20° /19° | 1.5 mm | 4 | |
| Sept. 25 | Partly cloudy | 21° /19° | 0 mm | 5 | |
| Sept. 26 | Partly cloudy | 21° /19° | 0 mm | 6 | |
| Sept. 27 | Patchy rain possible | 19° /18° | 2.2 mm | 5 | |
| Sept. 28 | Patchy rain possible | 20° /17° | 122.5 mm | 5 | |
| Sept. 29 |  Moderate or heavy rain shower | 20° /18° | 53.7 mm | 5 | |
| Sept. 30 | Light rain shower | 19° /17° | 6.4 mm | 4 | |
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Atlantic City in September - FAQ
September rainfall patterns in Atlantic City
UV exposure in Atlantic City during September
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Where is Atlantic City?Get accurate weather forecasts for Atlantic City, located at latitude 39.364 and longitude -74.423. Stay updated with localized weather information tailored for Atlantic City.