Climate averages 1991–2020
Rouissat weather
in July.
A very hot, very dry month: the warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a very hot month in Rouissat: daytime highs average 41.5°C and nights cool to about 26.9°C. By daytime temperature it is the warmest month of the year.
Rain is very rare: less than 1 mm falls in a typical July (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 01 min on an average July day.
The nearest other city in this atlas is Ouargla (4 km away). In July its highs average 41.5°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 July highs and joint 2nd of 55 for the driest July (rainfall, lowest first). The mean July high of those 55 cities is 34.5°C; Rouissat is 7.0°C warmer than that mean.
From July to August, average highs fall by 0.8°C to 40.7°C, and monthly rainfall stays under 1 mm.
The annual picture
July 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, selected | 41.5°C26.9°C | 26.9°C | 0.2 | 0.0 | 14.014 h |
| August | 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
July in nearby cities
- Ouargla in JulyAlgeria · 4 kmHigh 41.5°C · Low 26.9°C · 0.2 mm rain
- Touggourt in JulyAlgeria · 148 kmHigh 39.9°C · Low 25.6°C · 0.1 mm rain
- Ghardaïa in JulyAlgeria · 170 kmHigh 39.5°C · Low 26.1°C · 1.1 mm rain
- El Oued in JulyAlgeria · 213 kmHigh 39.7°C · Low 25.4°C · 0.3 mm rain
- Messaad in JulyAlgeria · 302 kmHigh 37.0°C · Low 23.1°C · 3.5 mm rain
- Laghouat in JulyAlgeria · 312 kmHigh 37.7°C · Low 22.9°C · 2.9 mm rain
- Biskra in JulyAlgeria · 327 kmHigh 39.2°C · Low 26.4°C · 0.6 mm rain
- Djelfa in JulyAlgeria · 362 kmHigh 34.7°C · Low 20.1°C · 8.5 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.