Marie-Galante Island Weather in September
What's the weather like in Marie-Galante Island (Guadeloupe) in September 2025?
The climate in Marie-Galante Island during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Marie-Galante Island and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 23°C (74°F) is normal.
| Daytime temperature | 30.6°C 87.1°F |
|---|---|
| Nightly temperature | 23.2°C 73.8°F |
| Average temperature | 26.9°C 80.4°F |
| Daily sunshine | 7.6 hrs |
| Avg rainfall | 236 mm 9.3 ins |
| Rainy days | 20 days |
| Sea temperature | 29°C 84.2°F |
| Humidity | 81% |
| Windspeed | 15.5kph 10 mph |
On average September is the 3rd wettest month of the year in Marie-Galante Island with around 236mm 9.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
September temperatures in Marie-Galante Island
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 Marie-Galante Island in September 2025.
Other monthly averages
Best places to visit in September
Marie-Galante Island weather stats
| Hottest month: | July | 30.5°C 86.9°F |
|---|---|---|
| Driest month: | February | 84mm 3.3ins |
| Sunniest month: | April | 8.6hrs |
| Coldest month: | January | 28.2°C 82.8°F |
| Wettest month: | November | 278mm 10.9ins |
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