Home › Cities › Syria › Deir ez-Zor
Deir ez-Zor, Syria climate
BWh Hot desert
Deir ez-Zor has a strongly 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 2°C at night. Precipitation totals about 106 mm a year and is strongly seasonal — December alone averages 28 mm while August barely receives 0 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)Deir ez-Zor climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 15 | 20 | 26 | 33 | 38 | 41 | 40 | 36 | 30 | 21 | 14 |
| Avg temp (°C) | 8 | 10 | 14 | 19 | 25 | 31 | 33 | 33 | 28 | 22 | 14 | 9 |
| Avg low (°C) | 2 | 4 | 8 | 13 | 18 | 23 | 26 | 26 | 21 | 15 | 7 | 3 |
| Precipitation (mm) | 18 | 12 | 9 | 5 | 2 | 0 | 5 | 0 | 0 | 8 | 19 | 28 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 15 | 20 | 26 | 33 | 38 |
| Avg temp (°C) | 8 | 10 | 14 | 19 | 25 | 31 |
| Avg low (°C) | 2 | 4 | 8 | 13 | 18 | 23 |
| Precipitation (mm) | 18 | 12 | 9 | 5 | 2 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 41 | 40 | 36 | 30 | 21 | 14 |
| Avg temp (°C) | 33 | 33 | 28 | 22 | 14 | 9 |
| Avg low (°C) | 26 | 26 | 21 | 15 | 7 | 3 |
| Precipitation (mm) | 5 | 0 | 0 | 8 | 19 | 28 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 50 | 49 | 50 | 41 | 18 | 14 | 13 | 15 | 33 | 41 | 48 |
| Relative humidity (%) | 71 | 65 | 56 | 47 | 39 | 30 | 29 | 31 | 32 | 38 | 54 | 68 |
| Wind speed (km/h) | 8.4 | 8.7 | 9.6 | 10.6 | 12.0 | 16.4 | 18.3 | 15.3 | 11.4 | 8.1 | 7.5 | 7.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 50 | 49 | 50 | 41 | 18 |
| Relative humidity (%) | 71 | 65 | 56 | 47 | 39 | 30 |
| Wind speed (km/h) | 8.4 | 8.7 | 9.6 | 10.6 | 12.0 | 16.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 14 | 13 | 15 | 33 | 41 | 48 |
| Relative humidity (%) | 29 | 31 | 32 | 38 | 54 | 68 |
| Wind speed (km/h) | 18.3 | 15.3 | 11.4 | 8.1 | 7.5 | 7.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 21 years of daily observations at Deir Zzor, a weather station, about 7 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.