Climate averages 1991–2020
Rouissat weather
in December.
A mild, very dry month: the 11th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Rouissat: daytime highs average 17.0°C and nights cool to about 6.0°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 4.3 mm of rain on roughly 1 day, which makes December a very dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 06 min on an average December day.
The nearest other city in this atlas is Ouargla (4 km away). In December its highs average 17.0°C, about as warm as Rouissat, with 4.3 mm of rain.
Among the 55 cities listed in Algeria, Rouissat ranks joint 2nd of 55 for the warmest December highs and joint 2nd of 55 for the driest December (rainfall, lowest first). The mean December high of those 55 cities is 14.1°C; Rouissat is 2.8°C warmer than that mean.
From December to January, average highs fall by 0.6°C to 16.4°C, and monthly rainfall rises from 4.3 mm to 7.2 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Ouargla in DecemberAlgeria · 4 kmHigh 17.0°C · Low 6.0°C · 4.3 mm rain
- Touggourt in DecemberAlgeria · 148 kmHigh 15.9°C · Low 5.5°C · 6.3 mm rain
- Ghardaïa in DecemberAlgeria · 170 kmHigh 15.8°C · Low 5.9°C · 5.4 mm rain
- El Oued in DecemberAlgeria · 213 kmHigh 16.1°C · Low 6.2°C · 6.8 mm rain
- Messaad in DecemberAlgeria · 302 kmHigh 13.3°C · Low 3.5°C · 13 mm rain
- Laghouat in DecemberAlgeria · 312 kmHigh 13.7°C · Low 2.8°C · 12 mm rain
- Biskra in DecemberAlgeria · 327 kmHigh 16.2°C · Low 6.3°C · 11 mm rain
- Djelfa in DecemberAlgeria · 362 kmHigh 10.8°C · Low 2.1°C · 23 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.