Weather in Gloucester County, New Jersey for September 2025
Rip Current Statement - See hour by hour.
Until now, September 2025 in Gloucester County is slightly cooler than the historical average by -0.6 °F.
The forecast for the next days in Gloucester County predicts temperatures to be around 26 °F, close to the historical average.
In general, the average temperature in Gloucester County at the beginning of September is 26.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 26.6 °F by the end of September.
Gloucester County experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 65.6 mm.
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Gloucester County Weather September
Temperatures trend during September in Gloucester County
September weather in Gloucester County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 26° /19° | 0.1 mm | 6 | |
| Sept. 2 |  Cloudy | 27° /18° | 0 mm | 7 | |
| Sept. 3 |  Sunny | 24° /15° | 0 mm | 6 | |
| Sept. 4 |  Overcast | 27° /15° | 0 mm | 6 | |
| Sept. 5 | Sunny | 29° /16° | 21 mm | 7 | |
| Sept. 6 | Patchy rain possible | 29° /19° | 10.7 mm | 6 | |
| Sept. 7 |  Moderate rain at times | 21° /15° | 12.8 mm | 5 | |
| Sept. 8 | Sunny | 23° /12° | 0 mm | 6 | |
| Sept. 9 | Sunny | 24° /13° | 0 mm | 7 | |
| Sept. 10 | Sunny | 24° /15° | 0 mm | 6 | |
| Sept. 11 | Sunny | 27° /15° | 0 mm | 7 | |
| Sept. 12 | Sunny | 27° /16° | 0 mm | 7 | |
| Sept. 13 | Cloudy | 26° /17° | 0 mm | 6 | |
| Sept. 14 | Sunny | 29° /16° | 0 mm | 7 | |
| Sept. 15 | Patchy rain possible | 28° /17° | 0.3 mm | 6 | |
| Sept. 16 | Patchy rain possible | 22° /16° | 1.3 mm | 1 | |
| Sept. 17 | Overcast | 17° /16° | 0 mm | 0.3 | |
| Sept. 18 | Cloudy | 24° /16° | 0 mm | 1.4 | |
| Sept. 19 | Sunny | 30° /18° | 0 mm | 1.5 | |
| Sept. 20 | Sunny | 24° /16° | 0 mm | 0 | |
| Sept. 21 | Sunny | 24° /13° | 0 mm | 5 | |
| Sept. 22 | Sunny | 26° /14° | 0 mm | 5 | |
| Sept. 23 | Sunny | 28° /15° | 0 mm | 6 | |
| Sept. 24 |  Partly cloudy | 31° /18° | 0 mm | 6 | |
| Sept. 25 | Patchy rain possible | 27° /21° | 2.4 mm | 5 | |
| Sept. 26 | Sunny | 26° /17° | 0 mm | 6 | |
| Sept. 27 | Sunny | 27° /15° | 0 mm | 6 | |
| Sept. 28 | Sunny | 27° /16° | 0 mm | 6 | |
| Sept. 29 | Partly cloudy | 28° /16° | 0 mm | 6 | |
| Sept. 30 | Overcast | 20° /17° | 0 mm | 5 | |
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Gloucester County in September - FAQ
September rainfall patterns in Gloucester County
UV exposure in Gloucester County during September
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Where is Gloucester County?Get accurate weather forecasts for Gloucester County, located at latitude 39.66 and longitude -75.092. Stay updated with localized weather information tailored for Gloucester County.