Climate averages 1991–2020
Algiers weather
in September.
A hot, fairly dry month: the 3rd warmest and the 4th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Algiers: daytime highs average 28.2°C and nights cool to about 18.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 27 mm of rain on roughly 5 days, which makes September a fairly dry month (the 4th 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 Bab Ezzouar (9 km away). In September its highs average 29.2°C, 0.9°C warmer than Algiers, with 32 mm of rain.
Among the 55 cities listed in Algeria, Algiers ranks joint 34th of 55 for the warmest September highs and 26th of 55 for the driest September (rainfall, lowest first). The mean September high of those 55 cities is 29.2°C; Algiers is 1.0°C cooler than that mean.
From September to October, average highs fall by 3.7°C to 24.6°C, and monthly rainfall rises from 27 mm to 58 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
Algiers climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.9°C7.1°C | 7.1°C | 81 | 11.0 | 10.010 h |
| February | 15.3°C7.0°C | 7.0°C | 68 | 10.4 | 10.811 h |
| March | 17.6°C8.6°C | 8.6°C | 62 | 8.6 | 11.912 h |
| April | 19.7°C10.5°C | 10.5°C | 61 | 8.5 | 13.113 h |
| May | 23.1°C13.4°C | 13.4°C | 43 | 5.7 | 14.114 h |
| June | 27.6°C16.9°C | 16.9°C | 6.9 | 1.3 | 14.615 h |
| July | 31.2°C19.9°C | 19.9°C | 0.8 | 0.2 | 14.414 h |
| August | 31.8°C20.9°C | 20.9°C | 7.4 | 1.4 | 13.614 h |
| September, selected | 28.2°C18.7°C | 18.7°C | 27 | 5.2 | 12.512 h |
| October | 24.6°C15.5°C | 15.5°C | 58 | 7.0 | 11.311 h |
| November | 19.0°C11.4°C | 11.4°C | 89 | 11.4 | 10.210 h |
| December | 15.9°C8.4°C | 8.4°C | 80 | 9.9 | 9.710 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
- Bab Ezzouar in SeptemberAlgeria · 9 kmHigh 29.2°C · Low 19.1°C · 32 mm rain
- Rouiba in SeptemberAlgeria · 17 kmHigh 29.6°C · Low 19.1°C · 32 mm rain
- Beni Mered in SeptemberAlgeria · 31 kmHigh 29.7°C · Low 19.1°C · 32 mm rain
- Blida in SeptemberAlgeria · 37 kmHigh 28.2°C · Low 18.3°C · 32 mm rain
- Médéa in SeptemberAlgeria · 60 kmHigh 26.9°C · Low 15.2°C · 32 mm rain
- Tizi Ouzou in SeptemberAlgeria · 85 kmHigh 29.1°C · Low 18.1°C · 39 mm rain
- Khemis Miliana in SeptemberAlgeria · 94 kmHigh 30.3°C · Low 18.3°C · 31 mm rain
- Aïn Oussera in SeptemberAlgeria · 143 kmHigh 29.4°C · Low 16.5°C · 22 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 Algiers) is explained once on the Algiers year overview and on the Sources, method and limits page.