The climate in Gebze during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Gebze and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (76°F), whilst at night 15°C (59°F) is normal.
Daytime temperature | 24.7°C 76.4°F |
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Nightly temperature | 15.2°C 59.3°F |
Average temperature | 19.9°C 67.8°F |
Daily sunshine | 9.9 hrs |
Avg rainfall | 52 mm 2 ins |
Rainy days | 6 days |
Sea temperature | 22.6°C 72.7°F |
Humidity | 72% |
Windspeed | 8.6kph 5 mph |
On average September is the 5th driest month of the year in Gebze with around 52mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.9 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 Gebze in September 2025.
Best places to visit in September
Hottest month: | July | 27.5°C 81.5°F |
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Driest month: | July | 24mm 0.9ins |
Sunniest month: | July | 12.8hrs |
Coldest month: | January | 9°C 48.2°F |
Wettest month: | December | 120mm 4.7ins |