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Ouled Djellal, Algeria climate
BWh Hot desert
Ouled Djellal has a seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is July with an average daily high near 41°C, while the coldest is January averaging around 7°C at night. Precipitation totals about 170 mm a year and is strongly seasonal — September alone averages 28 mm while August barely receives 2 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Ouled Djellal climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 17 | 19 | 23 | 27 | 32 | 38 | 41 | 40 | 35 | 29 | 22 | 18 |
| Avg temp (°C) | 12 | 13 | 17 | 21 | 26 | 31 | 34 | 34 | 29 | 24 | 17 | 13 |
| Avg low (°C) | 7 | 8 | 11 | 15 | 20 | 25 | 28 | 27 | 23 | 18 | 12 | 8 |
| Precipitation (mm) | 16 | 9 | 24 | 18 | 8 | 6 | 4 | 2 | 28 | 19 | 19 | 16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 17 | 19 | 23 | 27 | 32 | 38 |
| Avg temp (°C) | 12 | 13 | 17 | 21 | 26 | 31 |
| Avg low (°C) | 7 | 8 | 11 | 15 | 20 | 25 |
| Precipitation (mm) | 16 | 9 | 24 | 18 | 8 | 6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 41 | 40 | 35 | 29 | 22 | 18 |
| Avg temp (°C) | 34 | 34 | 29 | 24 | 17 | 13 |
| Avg low (°C) | 28 | 27 | 23 | 18 | 12 | 8 |
| Precipitation (mm) | 4 | 2 | 28 | 19 | 19 | 16 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 3 | 2 | 2 | 1 | 0.7 | 1 | 3 | 3 | 2 | 2 |
| Days with high ≥ 32°C (days) | — | — | 0.4 | 3 | 12 | 21 | 23 | 23 | 17 | 5 | 0.1 | — |
| Days with low ≤ 0°C (days) | 0.1 | 0.0 | — | — | — | — | — | — | — | — | — | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 3 | 2 | 2 | 1 |
| Days with high ≥ 32°C (days) | — | — | 0.4 | 3 | 12 | 21 |
| Days with low ≤ 0°C (days) | 0.1 | 0.0 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 0.7 | 1 | 3 | 3 | 2 | 2 |
| Days with high ≥ 32°C (days) | 23 | 23 | 17 | 5 | 0.1 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 34 | 37 | 38 | 37 | 28 | 21 | 25 | 39 | 36 | 35 | 35 |
| Relative humidity (%) | 65 | 58 | 51 | 46 | 40 | 32 | 26 | 30 | 43 | 49 | 59 | 67 |
| Wind speed (mph) | 5.4 | 5.9 | 6.4 | 6.7 | 6.6 | 6.3 | 6.1 | 5.6 | 5.7 | 5.4 | 5.5 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 34 | 37 | 38 | 37 | 28 |
| Relative humidity (%) | 65 | 58 | 51 | 46 | 40 | 32 |
| Wind speed (mph) | 5.4 | 5.9 | 6.4 | 6.7 | 6.6 | 6.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 21 | 25 | 39 | 36 | 35 | 35 |
| Relative humidity (%) | 26 | 30 | 43 | 49 | 59 | 67 |
| Wind speed (mph) | 6.1 | 5.6 | 5.7 | 5.4 | 5.5 | 5.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Biskra, a weather station, about 76 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.