Climate averages 1991–2020
Bordj Bou Arreridj weather
in September.
A warm, fairly dry month: the 4th warmest and the 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Bordj Bou Arreridj: daytime highs average 27.2°C and nights cool to about 15.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 38 mm of rain on roughly 7 days, which makes September a fairly dry month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is El Achir (12 km away). In September its highs average 26.6°C, 0.6°C cooler than Bordj Bou Arreridj, with 38 mm of rain.
Among the 55 cities listed in Algeria, Bordj Bou Arreridj ranks 42nd of 55 for the warmest September highs and joint 42nd of 55 for the driest September (rainfall, lowest first). The mean September high of those 55 cities is 29.2°C; Bordj Bou Arreridj is 2.1°C cooler than that mean.
From September to October, average highs fall by 5.5°C to 21.7°C, and monthly rainfall falls from 38 mm to 33 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bordj Bou Arreridj climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.1°C1.0°C | 1.0°C | 34 | 7.0 | 10.010 h |
| February | 11.4°C1.3°C | 1.3°C | 29 | 7.0 | 10.811 h |
| March | 15.1°C3.9°C | 3.9°C | 41 | 7.7 | 11.912 h |
| April | 18.7°C6.7°C | 6.7°C | 44 | 8.1 | 13.113 h |
| May | 23.9°C10.6°C | 10.6°C | 39 | 6.8 | 14.114 h |
| June | 29.7°C15.0°C | 15.0°C | 20 | 4.5 | 14.615 h |
| July | 34.2°C18.4°C | 18.4°C | 8.4 | 2.7 | 14.414 h |
| August | 33.4°C18.6°C | 18.6°C | 16 | 5.1 | 13.514 h |
| September, selected | 27.2°C15.0°C | 15.0°C | 38 | 7.2 | 12.412 h |
| October | 21.7°C10.8°C | 10.8°C | 33 | 6.0 | 11.311 h |
| November | 14.7°C5.6°C | 5.6°C | 34 | 6.5 | 10.310 h |
| December | 10.8°C2.3°C | 2.3°C | 29 | 6.2 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- El Achir in SeptemberAlgeria · 12 kmHigh 26.6°C · Low 14.6°C · 38 mm rain
- M'Sila in SeptemberAlgeria · 45 kmHigh 30.4°C · Low 18.5°C · 23 mm rain
- Sétif in SeptemberAlgeria · 60 kmHigh 25.2°C · Low 14.3°C · 47 mm rain
- Béjaïa in SeptemberAlgeria · 81 kmHigh 26.5°C · Low 19.9°C · 62 mm rain
- El Eulma in SeptemberAlgeria · 84 kmHigh 26.3°C · Low 15.1°C · 42 mm rain
- Barika in SeptemberAlgeria · 94 kmHigh 30.0°C · Low 18.1°C · 23 mm rain
- Tizi Ouzou in SeptemberAlgeria · 96 kmHigh 29.1°C · Low 18.1°C · 39 mm rain
- Bou Saâda in SeptemberAlgeria · 110 kmHigh 30.3°C · Low 17.6°C · 34 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bordj Bou Arreridj) is explained once on the Bordj Bou Arreridj year overview and on the Sources, method and limits page.
El Achir lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.