Saint-Georges-de-l'Oyapock Weather in September
What's the weather like in Saint-Georges-de-l'Oyapock (Guyane) in September 2025?
The climate in Saint-Georges-de-l'Oyapock during September can be summarized as hot, humid and reasonably dry.
September is in the fall / autumn in Saint-Georges-de-l'Oyapock and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 31.2°C 88.1°F |
|---|---|
| Nightly temperature | 21.5°C 70.6°F |
| Average temperature | 26.3°C 79.3°F |
| Daily sunshine | 8.7 hrs |
| Avg rainfall | 65 mm 2.6 ins |
| Rainy days | 6 days |
| Sea temperature | 28.3°C 82.9°F |
| Humidity | 79% |
| Windspeed | 6.5kph 4 mph |
On average September is the driest month of the year in Saint-Georges-de-l'Oyapock with around 65mm 2.6 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 8.7 hours of sunshine per day.
September temperatures in Saint-Georges-de-l'Oyapock
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 Saint-Georges-de-l'Oyapock in September 2025.
Other monthly averages
Best places to visit in September
Saint-Georges-de-l'Oyapock weather stats
| Hottest month: | October | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | September | 65mm 2.6ins |
| Sunniest month: | September | 8.7hrs |
| Coldest month: | February | 27.8°C 82°F |
| Wettest month: | May | 553mm 21.8ins |
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