Home › Cities › Eritrea › Asmara
Asmara, Eritrea climate
Aw Tropical savanna (dry winter)
Asmara has a mildly seasonal warm-temperate climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is June with an average daily high near 33°C, while the coldest is January averaging around 14°C at night. Precipitation totals about 1062 mm a year and is strongly seasonal — August alone averages 330 mm while February barely receives 29 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)Asmara climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 29 | 31 | 33 | 33 | 33 | 29 | 28 | 30 | 30 | 29 | 28 |
| Avg temp (°C) | 21 | 22 | 24 | 25 | 27 | 27 | 24 | 23 | 24 | 23 | 22 | 21 |
| Avg low (°C) | 14 | 14 | 16 | 18 | 20 | 20 | 19 | 19 | 18 | 16 | 15 | 14 |
| Precipitation (mm) | 43 | 29 | 46 | 70 | 61 | 62 | 251 | 330 | 66 | 36 | 35 | 33 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 29 | 31 | 33 | 33 | 33 |
| Avg temp (°C) | 21 | 22 | 24 | 25 | 27 | 27 |
| Avg low (°C) | 14 | 14 | 16 | 18 | 20 | 20 |
| Precipitation (mm) | 43 | 29 | 46 | 70 | 61 | 62 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 28 | 30 | 30 | 29 | 28 |
| Avg temp (°C) | 24 | 23 | 24 | 23 | 22 | 21 |
| Avg low (°C) | 19 | 19 | 18 | 16 | 15 | 14 |
| Precipitation (mm) | 251 | 330 | 66 | 36 | 35 | 33 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 3 | 11 | 19 | 23 | 20 | 3 | 1 | 5 | 2 | 0.2 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 3 | 11 | 19 | 23 | 20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 3 | 1 | 5 | 2 | 0.2 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 27 | 26 | 34 | 40 | 52 | 72 | 74 | 48 | 31 | 21 | 23 |
| Relative humidity (%) | 65 | 60 | 54 | 51 | 43 | 46 | 67 | 73 | 58 | 59 | 61 | 65 |
| Wind speed (mph) | 6.2 | 6.5 | 6.3 | 6.4 | 5.5 | 6.9 | 9.6 | 7.6 | 4.6 | 5.6 | 5.8 | 6.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 25 | 27 | 26 | 34 | 40 | 52 |
| Relative humidity (%) | 65 | 60 | 54 | 51 | 43 | 46 |
| Wind speed (mph) | 6.2 | 6.5 | 6.3 | 6.4 | 5.5 | 6.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 74 | 48 | 31 | 21 | 23 |
| Relative humidity (%) | 67 | 73 | 58 | 59 | 61 | 65 |
| Wind speed (mph) | 9.6 | 7.6 | 4.6 | 5.6 | 5.8 | 6.2 |
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.