Cincinnati
September
Weather in Cincinnati for September 2025
Your guide to Cincinnati weather in September - trends and predictions
In general, the average temperature in Cincinnati at the beginning of September is 29.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.3 °F by the end of September.
Precipitation in Cincinnati during September is a rare event, with an average of fewer than 2 rainy days.
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Temperatures
Rain 🌧️
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29
Dry days
1
Rainy days
0
Snow days
31°/11°
Temperatures
13 km/h
Avg max wind
67 %
Avg humidity
Cincinnati Weather September
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  30° | 2  30° | 3  29° | 4  30° | 5 29° | 6 29° | |
| 7 27° | 8 27° | 9 28° | 10 27° | 11 29° | 12 28° | 13 27° |
| 14 29° | 15 29° | 16 29° | 17  28° | 18 28° | 19  29° | 20 29° |
| 21 30° | 22 26° | 23 23° | 24 25° | 25  24° | 26 25° | 27 25° |
| 28 22° | 29 24° | 30 25° |
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Temperatures trend during September in Cincinnati
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 | Overcast | 30° /15° | 0.6 mm | 7 | |
| Sept. 2 | Sunny | 30° /15° | 0 mm | 7 | |
| Sept. 3 | Partly cloudy | 29° /15° | 2.5 mm | 7 | |
| Sept. 4 | Moderate rain at times | 30° /17° | 5.2 mm | 7 | |
| Sept. 5 | Moderate or heavy rain shower | 29° /18° | 3.2 mm | 6 | |
| Sept. 6 | Sunny | 29° /17° | 4.1 mm | 7 | |
| Sept. 7 | Sunny | 27° /15° | 0.1 mm | 7 | |
| Sept. 8 | Sunny | 27° /12° | 1 mm | 6 | |
| Sept. 9 | Sunny | 28° /13° | 0 mm | 7 | |
| Sept. 10 | Sunny | 27° /14° | 0.5 mm | 7 | |
| Sept. 11 | Sunny | 29° /14° | 3.5 mm | 7 | |
| Sept. 12 | Overcast | 28° /16° | 0.1 mm | 6 | |
| Sept. 13 | Sunny | 27° /15° | 0.6 mm | 6 | |
| Sept. 14 | Partly cloudy | 29° /15° | 0 mm | 7 | |
| Sept. 15 | Sunny | 29° /15° | 0.7 mm | 7 | |
| Sept. 16 | Overcast | 29° /14° | 0 mm | 7 | |
| Sept. 17 | Patchy rain possible | 28° /15° | 1.9 mm | 7 | |
| Sept. 18 | Partly cloudy | 28° /16° | 5.2 mm | 7 | |
| Sept. 19 | Mist | 29° /16° | 0.4 mm | 7 | |
| Sept. 20 | Partly cloudy | 29° /17° | 2.8 mm | 7 | |
| Sept. 21 | Overcast | 30° /19° | 1 mm | 7 | |
| Sept. 22 | Partly cloudy | 26° /14° | 8.9 mm | 6 | |
| Sept. 23 | Partly cloudy | 23° /12° | 4.3 mm | 6 | |
| Sept. 24 | Sunny | 25° /13° | 2 mm | 6 | |
| Sept. 25 | Heavy rain at times | 24° /14° | 0.9 mm | 5 | |
| Sept. 26 | Sunny | 25° /13° | 0.4 mm | 6 | |
| Sept. 27 | Partly cloudy | 25° /14° | 5.9 mm | 6 | |
| Sept. 28 | Partly cloudy | 22° /14° | 6.6 mm | 6 | |
| Sept. 29 | Sunny | 24° /13° | 0 mm | 6 | |
| Sept. 30 | Fog | 25° /13° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Cincinnati 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 Cincinnati forecast closer to your planned date for the most up-to-date weather information.
Cincinnati in September - FAQ
What are the expected maximum and minimum temperatures in Cincinnati during September?
Expect warm days with temperatures around 31°, cooling to mild conditions of 11° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Cincinnati during September?
Significant rainfall exceeding 249.6 mm is expected in Cincinnati during September, occurring over more than 1 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cincinnati during September?
The average wind speed in Cincinnati during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Cincinnati
Explore the daily rainfall trends and prepare for Cincinnatis September weather 💧
UV exposure in Cincinnati during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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