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Weather in Cincinnati for September 2025

Your guide to Cincinnati weather in September - trends and predictions

    Temperatures

  • 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.

  • Rain 🌧️

  • The climate of Cincinnati in September is notably wet, with an average of 15 rainy days, and a total of 62.4 mm of precipitation.

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Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/15°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
66 %
Avg humidity

Cincinnati in September average weather

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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
Overcast
30° /15° 0.6 mm 7
Sept. 2 Sunny
Sunny
30° /15° 0 mm 7
Sept. 3 Partly cloudy
Partly cloudy
29° /15° 2.5 mm 7
Sept. 4 Moderate rain at times
Moderate rain at times
30° /17° 5.2 mm 7
Sept. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
29° /18° 3.2 mm 6
Sept. 6 Sunny
Sunny
29° /17° 4.1 mm 7
Sept. 7 Sunny
Sunny
27° /15° 0.1 mm 7
Sept. 8 Sunny
Sunny
27° /12° 1 mm 6
Sept. 9 Sunny
Sunny
28° /13° 0 mm 7
Sept. 10 Sunny
Sunny
27° /14° 0.5 mm 7
Sept. 11 Sunny
Sunny
29° /14° 3.5 mm 7
Sept. 12 Overcast
Overcast
28° /16° 0.1 mm 6
Sept. 13 Sunny
Sunny
27° /15° 0.6 mm 6
Sept. 14 Partly cloudy
Partly cloudy
29° /15° 0 mm 7
Sept. 15 Sunny
Sunny
29° /15° 0.7 mm 7
Sept. 16 Overcast
Overcast
29° /14° 0 mm 7
Sept. 17 Patchy rain possible
Patchy rain possible
28° /15° 1.9 mm 7
Sept. 18 Partly cloudy
Partly cloudy
28° /16° 5.2 mm 7
Sept. 19 Mist
Mist
29° /16° 0.4 mm 7
Sept. 20 Partly cloudy
Partly cloudy
29° /17° 2.8 mm 7
Sept. 21 Overcast
Overcast
30° /19° 1 mm 7
Sept. 22 Partly cloudy
Partly cloudy
26° /14° 8.9 mm 6
Sept. 23 Partly cloudy
Partly cloudy
23° /12° 4.3 mm 6
Sept. 24 Sunny
Sunny
25° /13° 2 mm 6
Sept. 25 Heavy rain at times
Heavy rain at times
24° /14° 0.9 mm 5
Sept. 26 Sunny
Sunny
25° /13° 0.4 mm 6
Sept. 27 Partly cloudy
Partly cloudy
25° /14° 5.9 mm 6
Sept. 28 Partly cloudy
Partly cloudy
22° /14° 6.6 mm 6
Sept. 29 Sunny
Sunny
24° /13° 0 mm 6
Sept. 30 Fog
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?
During September, expect a variety of temperatures with highs around 27° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Cincinnati during September?
Moderate rainfall is anticipated in Cincinnati during September, with a total of 62.4 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Cincinnati during September?
The average wind speed in Cincinnati during September is 12 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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Location coordinates Where is Cincinnati?

Get accurate weather forecasts for Cincinnati, located at latitude 39.127 and longitude -84.514. Stay updated with localized weather information tailored for Cincinnati.

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