The climate in Boumerdas during September can be summarized as hot and reasonably dry.
September is in the fall / autumn in Boumerdas and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (84°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 29.1°C 84.3°F |
|---|---|
| Nightly temperature | 17.4°C 63.2°F |
| Average temperature | 23.2°C 73.8°F |
| Daily sunshine | 9.2 hrs |
| Avg rainfall | 34 mm 1.4 ins |
| Rainy days | 5 days |
| Sea temperature | 24.6°C 76.4°F |
| Humidity | 68% |
| Windspeed | 7.2kph 5 mph |
On average September is the 5th driest month of the year in Boumerdas with around 34mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 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 Boumerdas in September 2025.
Best places to visit in September
| Hottest month: | August | 31°C 87.8°F |
|---|---|---|
| Driest month: | July | 1mm 0ins |
| Sunniest month: | July | 12hrs |
| Coldest month: | January | 15.9°C 60.6°F |
| Wettest month: | December | 110mm 4.3ins |