The climate in Keles during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Keles and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 9°C (49°F) is normal.
| Daytime temperature | 22.1°C 71.7°F |
|---|---|
| Nightly temperature | 9.2°C 48.5°F |
| Average temperature | 15.6°C 60.1°F |
| Daily sunshine | 10.1 hrs |
| Avg rainfall | 38 mm 1.5 ins |
| Rainy days | 5 days |
| Sea temperature | 23°C 73.5°F |
| Humidity | 61% |
| Windspeed | 7.6kph 5 mph |
On average September is the 3rd driest month of the year in Keles with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.1 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 Keles in September 2025.
Best places to visit in September
| Hottest month: | July | 24.5°C 76.1°F |
|---|---|---|
| Driest month: | July | 25mm 1ins |
| Sunniest month: | August | 12hrs |
| Coldest month: | January | 4.2°C 39.6°F |
| Wettest month: | December | 144mm 5.7ins |