Duval County (Jacksonville)
September
Weather in Duval County for September 2025
Your guide to Duval County weather in September - trends and predictions
In general, the average temperature in Duval County at the beginning of September is 31.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 30.6 °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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Temperatures
Rain 🌧️
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4
Dry days
26
Rainy days
0
Snow days
31°/23°
Temperatures
16 km/h
Avg max wind
73 %
Avg humidity
Duval County in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2  32° | 3 31° | 4  31° | 5  32° | 6 34° | 7 32° |
| 8  31° | 9 30° | 10 31° | 11 30° | 12 32° | 13 32° | 14  31° |
| 15 29° | 16 31° | 17 32° | 18  32° | 19 29° | 20 30° | 21 29° |
| 22  31° | 23  33° | 24 34° | 25 33° | 26  29° | 27 29° | 28 29° |
| 29 30° | 30 30° |
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Temperatures trend during September in Duval County
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Moderate or heavy rain shower | 31° /25° | 4.1 mm | 7 | |
| Sept. 2 | Cloudy | 32° /24° | 0.1 mm | 7 | |
| Sept. 3 | Cloudy | 31° /23° | 2.5 mm | 7 | |
| Sept. 4 | Partly cloudy | 31° /23° | 4.1 mm | 7 | |
| Sept. 5 | Overcast | 32° /23° | 9.5 mm | 7 | |
| Sept. 6 | Partly cloudy | 34° /23° | 23.4 mm | 8 | |
| Sept. 7 | Cloudy | 32° /23° | 2.7 mm | 7 | |
| Sept. 8 | Thundery outbreaks possible | 31° /21° | 2.9 mm | 7 | |
| Sept. 9 | Thundery outbreaks possible | 30° /22° | 6.5 mm | 7 | |
| Sept. 10 | Overcast | 31° /23° | 7.8 mm | 7 | |
| Sept. 11 | Thundery outbreaks possible | 30° /23° | 39 mm | 7 | |
| Sept. 12 | Thundery outbreaks possible | 32° /23° | 1 mm | 7 | |
| Sept. 13 | Moderate or heavy rain shower | 32° /23° | 9.2 mm | 7 | |
| Sept. 14 | Light rain shower | 31° /24° | 4.5 mm | 7 | |
| Sept. 15 | Moderate or heavy rain shower | 29° /23° | 12.3 mm | 7 | |
| Sept. 16 | Moderate or heavy rain shower | 31° /23° | 10.3 mm | 7 | |
| Sept. 17 | Light rain shower | 32° /23° | 7.5 mm | 7 | |
| Sept. 18 | Fog | 32° /23° | 3.3 mm | 7 | |
| Sept. 19 | Cloudy | 29° /22° | 3 mm | 7 | |
| Sept. 20 | Light rain shower | 30° /22° | 3.8 mm | 7 | |
| Sept. 21 | Moderate or heavy rain shower | 29° /22° | 10.7 mm | 6 | |
| Sept. 22 | Light rain | 31° /21° | 3.4 mm | 7 | |
| Sept. 23 | Sunny | 33° /20° | 0 mm | 8 | |
| Sept. 24 | Partly cloudy | 34° /21° | 0 mm | 8 | |
| Sept. 25 | Overcast | 33° /23° | 0 mm | 8 | |
| Sept. 26 | Torrential rain shower | 29° /23° | 48.3 mm | 6 | |
| Sept. 27 | Moderate or heavy rain shower | 29° /25° | 14.6 mm | 7 | |
| Sept. 28 | Torrential rain shower | 29° /22° | 53.5 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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Important Notice
Our weather forecast for Duval County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Duval County forecast closer to your planned date for the most up-to-date weather information.
Duval County in September - FAQ
What are the expected maximum and minimum temperatures in Duval County during September?
During September, expect a variety of temperatures with highs around 31° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Duval County during September?
Significant rainfall exceeding 308 mm is expected in Duval County during September, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Duval County during September?
The average wind speed in Duval County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Duval County
Explore the daily rainfall trends and prepare for Duval Countys September weather 💧
UV exposure in Duval County during September
Stay informed about UV levels for safe outdoor activities throughout the month of 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.
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