The climate in Columbus during September can be summarized as warm, humid and damp.
September is in the fall / autumn in Columbus and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 15°C (58°F) is normal.
Daytime temperature | 26.3°C 79.3°F |
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Nightly temperature | 14.5°C 58.1°F |
Average temperature | 20.4°C 68.7°F |
Daily sunshine | 7.8 hrs |
Avg rainfall | 110 mm 4.3 ins |
Rainy days | 9 days |
Sea temperature | 24.9°C 76.8°F |
Humidity | 79% |
Windspeed | 10.1kph 6 mph |
On average September is the 4th driest month of the year in Columbus with around 110mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Columbus in September 2025.
Best places to visit in September
Hottest month: | July | 29.9°C 85.8°F |
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Driest month: | April | 100mm 3.9ins |
Sunniest month: | April | 9.2hrs |
Coldest month: | January | 9.1°C 48.4°F |
Wettest month: | March | 143mm 5.6ins |