Weather in Duval County, Florida for September 2025
Rip Current Statement - See hour by hour.
Until now, September 2025 in Duval County has been significantly cooler than historical averages by -2 °F, with average temperature of 28.6 °F.
The forecast for the next days in Duval County predicts temperatures to be around 30 °F, close to the historical average.
In general, the average temperature in Duval County at the beginning of September is 31.4 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.6 °F by the end of September.
Duval County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 308 mm.
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Duval County Weather September
Temperatures trend during September in Duval County
September weather in Duval County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 30° /25° | 26.7 mm | 7 | |
| Sept. 2 |  Cloudy | 31° /24° | 19 mm | 7 | |
| Sept. 3 | Cloudy | 30° /23° | 1.7 mm | 7 | |
| Sept. 4 |  Partly cloudy | 31° /23° | 2.7 mm | 7 | |
| Sept. 5 |  Overcast | 33° /23° | 6.3 mm | 7 | |
| Sept. 6 | Partly cloudy | 33° /23° | 15.6 mm | 8 | |
| Sept. 7 | Cloudy | 32° /23° | 1.8 mm | 7 | |
| Sept. 8 |  Thundery outbreaks possible | 30° /22° | 24.7 mm | 6 | |
| Sept. 9 | Thundery outbreaks possible | 28° /22° | 30.5 mm | 6 | |
| Sept. 10 |  Light rain shower | 29° /23° | 9.3 mm | 7 | |
| Sept. 11 | Thundery outbreaks possible | 29° /22° | 26 mm | 7 | |
| Sept. 12 | Thundery outbreaks possible | 31° /23° | 0.7 mm | 7 | |
| Sept. 13 | Moderate or heavy rain shower | 31° /23° | 6.1 mm | 6 | |
| Sept. 14 | Light rain shower | 31° /23° | 3 mm | 7 | |
| Sept. 15 |  Sunny | 30° /19° | 0 mm | 1.7 | |
| Sept. 16 | Sunny | 33° /21° | 0 mm | 1.9 | |
| Sept. 17 | Sunny | 35° /23° | 0 mm | 1.8 | |
| Sept. 18 | Sunny | 36° /23° | 0 mm | 1.4 | |
| Sept. 19 | Sunny | 31° /23° | 0 mm | 0 | |
| Sept. 20 | Sunny | 31° /24° | 0 mm | 7 | |
| Sept. 21 | Patchy rain possible | 28° /24° | 2.3 mm | 6 | |
| Sept. 22 | Patchy rain possible | 27° /23° | 2.3 mm | 5 | |
| Sept. 23 | Patchy rain possible | 28° /24° | 1.6 mm | 6 | |
| Sept. 24 | Partly cloudy | 32° /24° | 0 mm | 7 | |
| Sept. 25 | Patchy rain possible | 26° /22° | 3.2 mm | 5 | |
| Sept. 26 |  Moderate rain | 25° /22° | 14.4 mm | 5 | |
| Sept. 27 | Sunny | 33° /21° | 0 mm | 7 | |
| Sept. 28 | Sunny | 31° /20° | 0 mm | 6 | |
| Sept. 29 | Moderate or heavy rain shower | 30° /23° | 9.4 mm | 7 | |
| Sept. 30 |  Mist | 30° /23° | 10.6 mm | 7 | |
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Duval County in September - FAQ
September rainfall patterns in Duval County
UV exposure in Duval County during September
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Where is Duval County?Get accurate weather forecasts for Duval County, located at latitude 30.332 and longitude -81.656. Stay updated with localized weather information tailored for Duval County.