The climate in Cosâmbeşti during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Cosâmbeşti and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (76°F), whilst at night 12°C (53°F) is normal.
| Daytime temperature | 24.6°C 76.2°F |
|---|---|
| Nightly temperature | 11.7°C 53°F |
| Average temperature | 18.1°C 64.6°F |
| Daily sunshine | 7.8 hrs |
| Avg rainfall | 39 mm 1.5 ins |
| Rainy days | 6 days |
| Sea temperature | 21.9°C 71.4°F |
| Humidity | 74% |
| Windspeed | 9kph 6 mph |
On average September is the 5th wettest month of the year in Cosâmbeşti with around 39mm 1.5 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 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 Cosâmbeşti in September 2025.
Best places to visit in September
| Hottest month: | July | 28.4°C 83.1°F |
|---|---|---|
| Driest month: | March | 30mm 1.2ins |
| Sunniest month: | August | 9.8hrs |
| Coldest month: | January | 1.8°C 35.2°F |
| Wettest month: | June | 65mm 2.6ins |