The climate in Columbus during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Columbus and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (54°F) is normal.
| Daytime temperature | 24.9°C 76.7°F |
|---|---|
| Nightly temperature | 12.4°C 54.2°F |
| Average temperature | 18.6°C 65.5°F |
| Daily sunshine | 7.7 hrs |
| Avg rainfall | 72 mm 2.8 ins |
| Rainy days | 8 days |
| Sea temperature | 22.2°C 72°F |
| Humidity | 73% |
| Windspeed | 11.5kph 7 mph |
On average September is the 5th driest month of the year in Columbus with around 72mm 2.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.7 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 | 28.7°C 83.7°F |
|---|---|---|
| Driest month: | October | 51mm 2ins |
| Sunniest month: | June | 9.3hrs |
| Coldest month: | January | 1.1°C 34°F |
| Wettest month: | July | 101mm 4ins |