The climate in Nouakchott during September can be summarized as very hot and reasonably dry.
September is in the fall / autumn in Nouakchott and is typically the warmest month of the year. Daytime maximum temperatures average around a hot 36°C (96°F), whilst at night 26°C (79°F) is normal.
| Daytime temperature | 35.6°C 96°F |
|---|---|
| Nightly temperature | 25.9°C 78.5°F |
| Average temperature | 30.7°C 87.3°F |
| Daily sunshine | 8.2 hrs |
| Avg rainfall | 36 mm 1.4 ins |
| Rainy days | 2 days |
| Sea temperature | 26.9°C 80.4°F |
| Humidity | 69% |
| Windspeed | 7.2kph 5 mph |
On average September is the 2nd wettest month of the year in Nouakchott with around 36mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 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 Nouakchott in September 2025.
Best places to visit in September
| Hottest month: | September | 35.3°C 95.5°F |
|---|---|---|
| Driest month: | May | 0mm 0ins |
| Sunniest month: | April | 9.7hrs |
| Coldest month: | January | 28°C 82.4°F |
| Wettest month: | August | 44mm 1.7ins |