Climate averages 1991–2020
Bir el Ater weather
in September.
A warm, fairly dry month: the 4th warmest and the 10th 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 Bir el Ater: daytime highs average 27.9°C and nights cool to about 16.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 24 mm of rain on roughly 5 days, which makes September a fairly dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Feriana (51 km away). In September its highs average 28.7°C, 0.8°C warmer than Bir el Ater, with 35 mm of rain.
Among the 55 cities listed in Algeria, Bir el Ater ranks 37th of 55 for the warmest September highs and joint 21st of 55 for the driest September (rainfall, lowest first). The mean September high of those 55 cities is 29.2°C; Bir el Ater is 1.4°C cooler than that mean.
From September to October, average highs fall by 5.4°C to 22.4°C, and monthly rainfall falls from 24 mm to 23 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
Bir el Ater climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.7°C1.4°C | 1.4°C | 17 | 3.8 | 10.110 h |
| February | 12.2°C2.0°C | 2.0°C | 13 | 2.9 | 10.911 h |
| March | 16.2°C5.1°C | 5.1°C | 25 | 4.6 | 11.912 h |
| April | 20.3°C8.4°C | 8.4°C | 25 | 4.4 | 13.013 h |
| May | 25.5°C12.7°C | 12.7°C | 19 | 4.0 | 14.014 h |
| June | 30.7°C17.3°C | 17.3°C | 8.9 | 2.5 | 14.414 h |
| July | 33.8°C20.2°C | 20.2°C | 5.3 | 1.5 | 14.214 h |
| August | 33.0°C20.2°C | 20.2°C | 10 | 2.9 | 13.513 h |
| September, selected | 27.9°C16.8°C | 16.8°C | 24 | 4.7 | 12.412 h |
| October | 22.4°C12.2°C | 12.2°C | 23 | 4.3 | 11.311 h |
| November | 15.7°C6.5°C | 6.5°C | 21 | 3.8 | 10.410 h |
| December | 11.5°C2.6°C | 2.6°C | 15 | 3.2 | 9.910 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
- Feriana in SeptemberTunisia · 51 kmHigh 28.7°C · Low 16.7°C · 35 mm rain
- Tébessa in SeptemberAlgeria · 74 kmHigh 28.7°C · Low 15.7°C · 38 mm rain
- Gafsa in SeptemberTunisia · 75 kmHigh 31.7°C · Low 19.9°C · 15 mm rain
- Kasserine in SeptemberTunisia · 85 kmHigh 29.5°C · Low 16.3°C · 40 mm rain
- Khenchela in SeptemberAlgeria · 113 kmHigh 26.1°C · Low 14.3°C · 31 mm rain
- Aïn Beïda in SeptemberAlgeria · 132 kmHigh 26.6°C · Low 14.8°C · 31 mm rain
- Souk Ahras in SeptemberAlgeria · 172 kmHigh 28.2°C · Low 16.3°C · 48 mm rain
- El Oued in SeptemberAlgeria · 190 kmHigh 34.3°C · Low 22.3°C · 5.7 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 Bir el Ater) is explained once on the Bir el Ater year overview and on the Sources, method and limits page.