Climate averages 1991–2020
Blida 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 Blida: daytime highs average 28.2°C and nights cool to about 18.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 32 mm of rain on roughly 6 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 Beni Mered (7 km away). In September its highs average 29.7°C, 1.4°C warmer than Blida, with 32 mm of rain.
Among the 55 cities listed in Algeria, Blida ranks joint 34th of 55 for the warmest September highs and joint 33rd of 55 for the driest September (rainfall, lowest first). The mean September high of those 55 cities is 29.2°C; Blida is 1.0°C cooler than that mean.
From September to October, average highs fall by 4.0°C to 24.3°C, and monthly rainfall rises from 32 mm to 54 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
Blida climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.3°C6.4°C | 6.4°C | 79 | 10.8 | 10.010 h |
| February | 14.9°C6.5°C | 6.5°C | 68 | 10.0 | 10.811 h |
| March | 17.4°C8.4°C | 8.4°C | 70 | 9.7 | 11.912 h |
| April | 19.7°C10.3°C | 10.3°C | 70 | 9.6 | 13.113 h |
| May | 23.2°C13.3°C | 13.3°C | 54 | 6.8 | 14.114 h |
| June | 27.7°C17.0°C | 17.0°C | 11 | 2.5 | 14.615 h |
| July | 31.6°C20.1°C | 20.1°C | 2.4 | 0.5 | 14.414 h |
| August | 32.1°C21.0°C | 21.0°C | 10 | 2.1 | 13.514 h |
| September, selected | 28.2°C18.3°C | 18.3°C | 32 | 5.9 | 12.412 h |
| October | 24.3°C15.0°C | 15.0°C | 54 | 7.4 | 11.311 h |
| November | 18.5°C10.7°C | 10.7°C | 78 | 11.1 | 10.310 h |
| December | 15.3°C7.8°C | 7.8°C | 75 | 9.8 | 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
- Beni Mered in SeptemberAlgeria · 7 kmHigh 29.7°C · Low 19.1°C · 32 mm rain
- Médéa in SeptemberAlgeria · 24 kmHigh 26.9°C · Low 15.2°C · 32 mm rain
- Algiers in SeptemberAlgeria · 37 kmHigh 28.2°C · Low 18.7°C · 27 mm rain
- Bab Ezzouar in SeptemberAlgeria · 43 kmHigh 29.2°C · Low 19.1°C · 32 mm rain
- Rouiba in SeptemberAlgeria · 50 kmHigh 29.6°C · Low 19.1°C · 32 mm rain
- Khemis Miliana in SeptemberAlgeria · 59 kmHigh 30.3°C · Low 18.3°C · 31 mm rain
- Tizi Ouzou in SeptemberAlgeria · 112 kmHigh 29.1°C · Low 18.1°C · 39 mm rain
- Aïn Oussera in SeptemberAlgeria · 113 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 Blida) is explained once on the Blida year overview and on the Sources, method and limits page.
Beni Mered lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.