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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 92°F, while the coldest is January averaging around 57°F at night. Precipitation totals about 42 inches a year and is strongly seasonal — August alone averages 13.0 inches while February barely receives 1.15 inches.
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 (°F) | 82 | 85 | 89 | 91 | 92 | 92 | 83 | 82 | 86 | 85 | 84 | 82 |
| Avg temp (°F) | 69 | 72 | 75 | 78 | 80 | 80 | 75 | 74 | 76 | 73 | 71 | 69 |
| Avg low (°F) | 57 | 58 | 61 | 65 | 67 | 69 | 67 | 66 | 65 | 61 | 59 | 57 |
| Precipitation (in) | 1.7 | 1.1 | 1.8 | 2.7 | 2.4 | 2.4 | 9.9 | 13.0 | 2.6 | 1.4 | 1.4 | 1.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 85 | 89 | 91 | 92 | 92 |
| Avg temp (°F) | 69 | 72 | 75 | 78 | 80 | 80 |
| Avg low (°F) | 57 | 58 | 61 | 65 | 67 | 69 |
| Precipitation (in) | 1.7 | 1.1 | 1.8 | 2.7 | 2.4 | 2.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 82 | 86 | 85 | 84 | 82 |
| Avg temp (°F) | 75 | 74 | 76 | 73 | 71 | 69 |
| Avg low (°F) | 67 | 66 | 65 | 61 | 59 | 57 |
| Precipitation (in) | 9.9 | 13.0 | 2.6 | 1.4 | 1.4 | 1.3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (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 ≥ 90°F (days) | 0.2 | 3 | 11 | 19 | 23 | 20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (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.