Pinellas County (St. Petersburg)
September
Weather in Pinellas County, Florida for September 2025
Your guide to Pinellas County weather in September - trends and predictions
Until now, September 2025 in Pinellas County is slightly cooler than the historical average by -1.6 °F.
Expect cooler weather in the next days in Pinellas County with the forecast suggesting a temperature of 29.1 °F, lower than the historical average.
In general, the average temperature in Pinellas County at the beginning of September is 30.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 28.9 °F by the end of September.
Pinellas County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 233.3 mm.
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Temperatures
Rain 🌧️
More
2
Dry days
28
Rainy days
0
Snow days
31°/26°
Temperatures
24 km/h
Avg max wind
73 %
Avg humidity
Pinellas County Weather September
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Temperatures trend during September in Pinellas County
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September weather in Pinellas County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 30° /25° | 4.5 mm | 7 | |
| Sept. 2 |  Overcast | 31° /25° | 13 mm | 7 | |
| Sept. 3 |  Partly cloudy | 31° /25° | 2.1 mm | 7 | |
| Sept. 4 | Partly cloudy | 31° /25° | 8.5 mm | 7 | |
| Sept. 5 | Overcast | 31° /25° | 8 mm | 7 | |
| Sept. 6 | Overcast | 31° /26° | 10.4 mm | 7 | |
| Sept. 7 | Partly cloudy | 31° /26° | 21 mm | 7 | |
| Sept. 8 |  Thundery outbreaks possible | 29° /26° | 4.2 mm | 7 | |
| Sept. 9 |  Patchy rain possible | 29° /24° | 21.9 mm | 7 | |
| Sept. 10 | Moderate or heavy rain shower | 30° /25° | 18.3 mm | 6 | |
| Sept. 11 | Thundery outbreaks possible | 30° /25° | 9 mm | 6 | |
| Sept. 12 |  Fog | 31° /25° | 0.7 mm | 7 | |
| Sept. 13 | Partly cloudy | 30° /25° | 4.1 mm | 7 | |
| Sept. 14 |  Moderate rain | 32° /23° | 10.1 mm | 2.1 | |
| Sept. 15 | Moderate rain | 32° /24° | 5.7 mm | 2.2 | |
| Sept. 16 | Moderate rain | 31° /25° | 16.1 mm | 2.2 | |
| Sept. 17 | Moderate rain | 31° /25° | 11.6 mm | 1.9 | |
| Sept. 18 | Patchy rain possible | 26° /23° | 2.3 mm | 0 | |
| Sept. 19 | Partly cloudy | 29° /23° | 0 mm | 7 | |
| Sept. 20 | Patchy rain possible | 30° /24° | 1.5 mm | 6 | |
| Sept. 21 | Partly cloudy | 29° /25° | 0 mm | 7 | |
| Sept. 22 | Partly cloudy | 28° /24° | 0 mm | 7 | |
| Sept. 23 | Partly cloudy | 28° /26° | 0 mm | 7 | |
| Sept. 24 | Patchy rain possible | 28° /25° | 2.5 mm | 6 | |
| Sept. 25 | Patchy rain possible | 28° /25° | 4.2 mm | 6 | |
| Sept. 26 | Moderate rain | 29° /27° | 5.7 mm | 6 | |
| Sept. 27 | Patchy rain possible | 26° /24° | 3.8 mm | 6 | |
| Sept. 28 | Light rain shower | 29° /26° | 10 mm | 6 | |
| Sept. 29 | Light rain shower | 31° /25° | 11.3 mm | 7 | |
| Sept. 30 | Patchy rain possible | 31° /25° | 3.1 mm | 8 | |
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Important Notice
Our weather forecast for Pinellas 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 Pinellas County forecast closer to your planned date for the most up-to-date weather information.
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Pinellas County in September - FAQ
What are the expected maximum and minimum temperatures in Pinellas County during September?
During September, expect a variety of temperatures with highs around 31° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in Pinellas County during September?
Significant rainfall exceeding 233.3 mm is expected in Pinellas County during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Pinellas County during September?
The average wind speed in Pinellas County during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Pinellas County
Explore the daily rainfall trends and prepare for Pinellas Countys September weather 💧
UV exposure in Pinellas County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Pinellas County?Get accurate weather forecasts for Pinellas County, located at latitude 27.771 and longitude -82.679. Stay updated with localized weather information tailored for Pinellas County.
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