The climate in Bordj Bou Arreridj during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Bordj Bou Arreridj and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 27.7°C 81.8°F | 
|---|---|
| Nightly temperature | 15.2°C 59.3°F | 
| Average temperature | 21.4°C 70.5°F | 
| Daily sunshine | 9.3 hrs | 
| Avg rainfall | 42 mm 1.6 ins | 
| Rainy days | 6 days | 
| Sea temperature | 24.9°C 76.9°F | 
| Humidity | 63% | 
| Windspeed | 7.6kph 5 mph | 
On average September is the 4th driest month of the year in Bordj Bou Arreridj with around 42mm 1.6 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 9.3 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 Bordj Bou Arreridj in September 2025.
Best places to visit in September
| Hottest month: | July | 32.4°C 90.3°F | 
|---|---|---|
| Driest month: | July | 10mm 0.4ins | 
| Sunniest month: | July | 12hrs | 
| Coldest month: | January | 9.9°C 49.8°F | 
| Wettest month: | December | 77mm 3ins | 
 
	 
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