Mercin Weather in September
What's the weather like in Mercin (Mersin) in September 2025?
The climate in Mercin during September can be summarized as hot and dry.
September is in the fall / autumn in Mercin and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 30°C (86°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 29.9°C 85.8°F |
|---|---|
| Nightly temperature | 19.1°C 66.4°F |
| Average temperature | 24.5°C 76.1°F |
| Daily sunshine | 11.4 hrs |
| Avg rainfall | 11 mm 0.4 ins |
| Rainy days | 4 days |
| Sea temperature | 28°C 82.3°F |
| Humidity | 67% |
| Windspeed | 7.2kph 5 mph |
On average September is the 3rd driest month of the year in Mercin with around 11mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.4 hours of sunshine per day.
September temperatures in Mercin
September rainfall
September hourly sunshine
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 Mercin in September 2025.
Other monthly averages
Best places to visit in September
Mercin weather stats
| Hottest month: | August | 30.9°C 87.6°F |
|---|---|---|
| Driest month: | August | 5mm 0.2ins |
| Sunniest month: | August | 12.5hrs |
| Coldest month: | January | 13.9°C 57°F |
| Wettest month: | December | 133mm 5.2ins |
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