Hillsborough County (Tampa)
September
Weather in Hillsborough County, Florida for September 2025
Your guide to Hillsborough County weather in September - trends and predictions
Until now, September 2025 in Hillsborough County is cooler than usual, with temperatures averaging 29.2 °F, this is -2.2 °F below the typical seasonal average.
The forecast for the next days in Hillsborough County predicts temperatures to be around 31 °F, close to the historical average.
In general, the average temperature in Hillsborough County at the beginning of September is 31.7 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 29.4 °F by the end of September.
Hillsborough County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 276.1 mm.
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Temperatures
Rain 🌧️
More
1
Dry days
29
Rainy days
0
Snow days
31°/24°
Temperatures
19 km/h
Avg max wind
69 %
Avg humidity
Hillsborough County Weather September
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Temperatures trend during September in Hillsborough County
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September weather in Hillsborough County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 31° /24° | 8.7 mm | 7 | |
| Sept. 2 | Moderate or heavy rain shower | 31° /24° | 11.1 mm | 7 | |
| Sept. 3 | Moderate or heavy rain shower | 31° /24° | 6.1 mm | 7 | |
| Sept. 4 |  Heavy rain at times | 32° /24° | 17 mm | 7 | |
| Sept. 5 | Moderate rain at times | 32° /24° | 4.7 mm | 7 | |
| Sept. 6 | Moderate or heavy rain shower | 33° /26° | 9.8 mm | 7 | |
| Sept. 7 | Moderate or heavy rain shower | 32° /25° | 12.3 mm | 7 | |
| Sept. 8 | Moderate or heavy rain shower | 31° /25° | 12.6 mm | 7 | |
| Sept. 9 | Moderate or heavy rain shower | 30° /24° | 13.2 mm | 6 | |
| Sept. 10 | Moderate or heavy rain shower | 31° /24° | 10.2 mm | 7 | |
| Sept. 11 | Moderate or heavy rain shower | 31° /25° | 5.9 mm | 7 | |
| Sept. 12 | Moderate or heavy rain shower | 32° /24° | 3.5 mm | 7 | |
| Sept. 13 | Moderate rain at times | 31° /24° | 4.8 mm | 7 | |
| Sept. 14 | Moderate or heavy rain shower | 32° /24° | 4.5 mm | 7 | |
| Sept. 15 |  Sunny | 35° /21° | 0 mm | 2.2 | |
| Sept. 16 |  Cloudy | 35° /24° | 0 mm | 2.1 | |
| Sept. 17 |  Overcast | 33° /23° | 0 mm | 1.4 | |
| Sept. 18 | Overcast | 33° /23° | 0.1 mm | 0.7 | |
| Sept. 19 |  Partly cloudy | 33° /23° | 0 mm | 0 | |
| Sept. 20 |  Patchy rain possible | 31° /24° | 0.5 mm | 6 | |
| Sept. 21 | Patchy rain possible | 30° /24° | 0.6 mm | 6 | |
| Sept. 22 | Patchy rain possible | 30° /24° | 0.2 mm | 6 | |
| Sept. 23 | Patchy rain possible | 31° /25° | 1.3 mm | 6 | |
| Sept. 24 | Partly cloudy | 30° /26° | 0 mm | 7 | |
| Sept. 25 | Patchy rain possible | 29° /24° | 2.7 mm | 6 | |
| Sept. 26 |  Moderate rain | 26° /23° | 10.5 mm | 5 | |
| Sept. 27 | Patchy rain possible | 31° /26° | 0.1 mm | 6 | |
| Sept. 28 | Sunny | 31° /25° | 0 mm | 7 | |
| Sept. 29 | Sunny | 30° /23° | 11.4 mm | 7 | |
| Sept. 30 | Sunny | 29° /22° | 3.3 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Hillsborough 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 Hillsborough County forecast closer to your planned date for the most up-to-date weather information.
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Hillsborough County in September - FAQ
What are the expected maximum and minimum temperatures in Hillsborough County during September?
During September, expect a variety of temperatures with highs around 31° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hillsborough County during September?
Significant rainfall exceeding 276.1 mm is expected in Hillsborough County during September, occurring over more than 29 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hillsborough County during September?
The average wind speed in Hillsborough County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hillsborough County
Explore the daily rainfall trends and prepare for Hillsborough Countys September weather 💧
UV exposure in Hillsborough County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Hillsborough County?Get accurate weather forecasts for Hillsborough County, located at latitude 27.948 and longitude -82.458. Stay updated with localized weather information tailored for Hillsborough County.
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