Port-Gentil Weather in September
What's the weather like in Port-Gentil (Ogooué-Maritime) in September 2025?
The climate in Port-Gentil during September can be summarized as hot, humid and reasonably dry.
September is in the spring in Port-Gentil and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 28°C (82°F), whilst at night 23°C (73°F) is normal.
| Daytime temperature | 27.8°C 82°F |
|---|---|
| Nightly temperature | 23°C 73.4°F |
| Average temperature | 25.4°C 77.7°F |
| Daily sunshine | 4.1 hrs |
| Avg rainfall | 51 mm 2 ins |
| Rainy days | 9 days |
| Sea temperature | 25.7°C 78.2°F |
| Humidity | 82% |
| Windspeed | 19.8kph 12 mph |
On average September is the 4th driest month of the year in Port-Gentil with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
September temperatures in Port-Gentil
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 Port-Gentil in September 2025.
Other monthly averages
Best places to visit in September
Port-Gentil weather stats
| Hottest month: | February | 30.2°C 86.4°F |
|---|---|---|
| Driest month: | July | 4mm 0.2ins |
| Sunniest month: | February | 6hrs |
| Coldest month: | July | 25.8°C 78.4°F |
| Wettest month: | November | 382mm 15ins |
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