Sanaa, Yemen climate
BWh Hot desert
Sanaa has a mildly seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is June with an average daily high near 30°C, while the coldest is December averaging around 7°C at night. Precipitation totals about 254 mm a year and is strongly seasonal — August alone averages 66 mm while December barely receives 3 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)Sanaa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 25 | 27 | 27 | 28 | 30 | 29 | 29 | 28 | 24 | 23 | 23 |
| Avg temp (°C) | 15 | 17 | 19 | 20 | 21 | 23 | 23 | 23 | 21 | 17 | 16 | 15 |
| Avg low (°C) | 7 | 9 | 11 | 13 | 15 | 16 | 16 | 16 | 14 | 10 | 8 | 7 |
| Precipitation (mm) | 9 | 9 | 29 | 48 | 31 | 5 | 36 | 66 | 4 | 10 | 4 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 25 | 27 | 27 | 28 | 30 |
| Avg temp (°C) | 15 | 17 | 19 | 20 | 21 | 23 |
| Avg low (°C) | 7 | 9 | 11 | 13 | 15 | 16 |
| Precipitation (mm) | 9 | 9 | 29 | 48 | 31 | 5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 28 | 24 | 23 | 23 |
| Avg temp (°C) | 23 | 23 | 21 | 17 | 16 | 15 |
| Avg low (°C) | 16 | 16 | 14 | 10 | 8 | 7 |
| Precipitation (mm) | 36 | 66 | 4 | 10 | 4 | 3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 | 0.2 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 0.1 | — | — | — | — | — | — | — | — | — | — | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.1 |
| Days with low ≤ 0°C (days) | 0.1 | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 31 | 33 | 42 | 49 | 45 | 47 | 64 | 62 | 45 | 35 | 33 | 29 |
| Relative humidity (%) | 39 | 36 | 38 | 37 | 32 | 27 | 40 | 42 | 30 | 32 | 38 | 39 |
| Wind speed (m/s) | 1.8 | 2.0 | 2.1 | 2.1 | 2.6 | 3.0 | 3.3 | 3.2 | 3.0 | 2.6 | 2.1 | 1.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 31 | 33 | 42 | 49 | 45 | 47 |
| Relative humidity (%) | 39 | 36 | 38 | 37 | 32 | 27 |
| Wind speed (m/s) | 1.8 | 2.0 | 2.1 | 2.1 | 2.6 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 62 | 45 | 35 | 33 | 29 |
| Relative humidity (%) | 40 | 42 | 30 | 32 | 38 | 39 |
| Wind speed (m/s) | 3.3 | 3.2 | 3.0 | 2.6 | 2.1 | 1.8 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
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.