Hillsborough County (Tampa)
September
Weather in Hillsborough County for September 2025
Your guide to Hillsborough County weather in September - trends and predictions
In general, the average temperature in Hillsborough County at the beginning of September is 32.7 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 31.1 °F by the end of September.
Expect significant rainfall in Hillsborough County during September, with an average of 19 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
11
Dry days
19
Rainy days
0
Snow days
32°/24°
Temperatures
19 km/h
Avg max wind
69 %
Avg humidity
Hillsborough County in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  32° | 2  32° | 3  32° | 4 34° | 5 33° | 6 33° | 7  33° |
| 8  32° | 9 32° | 10 32° | 11 32° | 12 34° | 13  32° | 14 32° |
| 15 32° | 16  32° | 17 32° | 18  31° | 19 31° | 20 31° | 21 33° |
| 22  32° | 23  33° | 24 33° | 25 32° | 26 30° | 27 31° | 28 30° |
| 29 31° | 30 31° |
You can click on date
Access Hillsborough County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Hillsborough County
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Light rain shower | 32° /25° | 6.2 mm | 7 | |
| Sept. 2 | Overcast | 32° /25° | 2.2 mm | 7 | |
| Sept. 3 | Cloudy | 32° /25° | 1.8 mm | 7 | |
| Sept. 4 | Cloudy | 34° /24° | 3.5 mm | 7 | |
| Sept. 5 | Overcast | 33° /24° | 2.6 mm | 7 | |
| Sept. 6 | Overcast | 33° /26° | 0.1 mm | 7 | |
| Sept. 7 | Sunny | 33° /26° | 2.1 mm | 8 | |
| Sept. 8 | Thundery outbreaks possible | 32° /25° | 5 mm | 7 | |
| Sept. 9 | Patchy rain possible | 32° /24° | 3.1 mm | 7 | |
| Sept. 10 | Patchy rain possible | 32° /24° | 2.8 mm | 7 | |
| Sept. 11 | Thundery outbreaks possible | 32° /26° | 10.4 mm | 7 | |
| Sept. 12 | Thundery outbreaks possible | 34° /25° | 1.1 mm | 8 | |
| Sept. 13 | Mist | 32° /25° | 1.2 mm | 7 | |
| Sept. 14 | Cloudy | 32° /26° | 2.7 mm | 7 | |
| Sept. 15 | Light rain shower | 32° /25° | 3 mm | 7 | |
| Sept. 16 | Moderate or heavy rain shower | 32° /25° | 14.1 mm | 8 | |
| Sept. 17 | Fog | 32° /24° | 0.8 mm | 7 | |
| Sept. 18 | Patchy light rain with thunder | 31° /25° | 36.2 mm | 7 | |
| Sept. 19 | Overcast | 31° /24° | 0 mm | 8 | |
| Sept. 20 | Moderate or heavy rain shower | 31° /23° | 6 mm | 7 | |
| Sept. 21 | Patchy rain possible | 33° /22° | 13.8 mm | 7 | |
| Sept. 22 | Light drizzle | 32° /21° | 0.1 mm | 7 | |
| Sept. 23 | Partly cloudy | 33° /22° | 0 mm | 8 | |
| Sept. 24 | Light rain shower | 33° /23° | 3.5 mm | 7 | |
| Sept. 25 | Light rain shower | 32° /23° | 48.7 mm | 7 | |
| Sept. 26 | Patchy light rain with thunder | 30° /24° | 25.9 mm | 7 | |
| Sept. 27 | Light rain shower | 31° /26° | 25.1 mm | 7 | |
| Sept. 28 | Light rain shower | 30° /24° | 13.3 mm | 7 | |
| Sept. 29 | Light rain shower | 31° /24° | 15.2 mm | 7 | |
| Sept. 30 | Moderate or heavy rain shower | 31° /24° | 4 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.
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 32° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hillsborough County during September?
Significant rainfall exceeding 143.1 mm is expected in Hillsborough County during September, occurring over more than 19 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 ☀️
Top locations in Hillsborough County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.