Climate averages 1991–2020
Rouissat weather
in August.
A very hot, very dry month: the 2nd warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a very hot month in Rouissat: daytime highs average 40.7°C and nights cool to about 26.7°C. By daytime temperature it is the 2nd warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical August (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 19 min on an average August day.
The nearest other city in this atlas is Ouargla (4 km away). In August its highs average 40.7°C, about as warm as Rouissat, with almost no rain (under 1 mm).
Among the 55 cities listed in Algeria, Rouissat ranks joint 1st of 55 for the warmest August highs and joint 1st of 55 for the driest August (rainfall, lowest first). The mean August high of those 55 cities is 34.2°C; Rouissat is 6.5°C warmer than that mean.
From August to September, average highs fall by 4.7°C to 36.0°C, and monthly rainfall rises from under 1 mm to 3.0 mm.
The annual picture
August 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
Rouissat climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 16.4°C4.8°C | 4.8°C | 7.2 | 1.2 | 10.310 h |
| February | 19.0°C6.5°C | 6.5°C | 2.6 | 0.8 | 11.011 h |
| March | 23.7°C10.5°C | 10.5°C | 5.1 | 1.0 | 12.012 h |
| April | 28.5°C14.9°C | 14.9°C | 3.5 | 0.7 | 12.913 h |
| May | 33.7°C19.8°C | 19.8°C | 1.9 | 0.3 | 13.814 h |
| June | 38.5°C24.2°C | 24.2°C | 0.3 | 0.1 | 14.214 h |
| July | 41.5°C26.9°C | 26.9°C | 0.2 | 0.0 | 14.014 h |
| August, selected | 40.7°C26.7°C | 26.7°C | 0.4 | 0.0 | 13.313 h |
| September | 36.0°C23.1°C | 23.1°C | 3.0 | 0.7 | 12.412 h |
| October | 29.5°C17.3°C | 17.3°C | 3.7 | 0.6 | 11.411 h |
| November | 21.9°C10.4°C | 10.4°C | 3.9 | 0.9 | 10.611 h |
| December | 17.0°C6.0°C | 6.0°C | 4.3 | 1.1 | 10.110 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
August in nearby cities
- Ouargla in AugustAlgeria · 4 kmHigh 40.7°C · Low 26.7°C · 0.4 mm rain
- Touggourt in AugustAlgeria · 148 kmHigh 39.2°C · Low 25.6°C · 0.7 mm rain
- Ghardaïa in AugustAlgeria · 170 kmHigh 38.7°C · Low 25.9°C · 2.2 mm rain
- El Oued in AugustAlgeria · 213 kmHigh 39.1°C · Low 25.6°C · 0.9 mm rain
- Messaad in AugustAlgeria · 302 kmHigh 36.0°C · Low 22.6°C · 8.4 mm rain
- Laghouat in AugustAlgeria · 312 kmHigh 36.7°C · Low 22.3°C · 7.1 mm rain
- Biskra in AugustAlgeria · 327 kmHigh 38.4°C · Low 26.2°C · 4.0 mm rain
- Djelfa in AugustAlgeria · 362 kmHigh 33.6°C · Low 19.7°C · 14 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 Rouissat) is explained once on the Rouissat year overview and on the Sources, method and limits page.
Ouargla lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.