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Assab, Eritrea climate
BWh Hot desert
Assab has a mildly seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is June with an average daily high near 102°F, while the coldest is January averaging around 70°F at night. Precipitation totals about 3 inches a year and is strongly seasonal — August alone averages 0.8 inches while June barely receives 0.03 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)Assab climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 89 | 92 | 96 | 99 | 102 | 99 | 97 | 98 | 95 | 91 | 88 |
| Avg temp (°F) | 79 | 80 | 83 | 87 | 90 | 93 | 92 | 90 | 91 | 87 | 82 | 80 |
| Avg low (°F) | 70 | 71 | 73 | 77 | 82 | 84 | 84 | 83 | 83 | 78 | 74 | 71 |
| Precipitation (in) | 0.4 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 | 0.4 | 0.8 | 0.2 | 0.2 | 0.1 | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 89 | 92 | 96 | 99 | 102 |
| Avg temp (°F) | 79 | 80 | 83 | 87 | 90 | 93 |
| Avg low (°F) | 70 | 71 | 73 | 77 | 82 | 84 |
| Precipitation (in) | 0.4 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 99 | 97 | 98 | 95 | 91 | 88 |
| Avg temp (°F) | 92 | 90 | 91 | 87 | 82 | 80 |
| Avg low (°F) | 84 | 83 | 83 | 78 | 74 | 71 |
| Precipitation (in) | 0.4 | 0.8 | 0.2 | 0.2 | 0.1 | 0.2 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 3 | 11 | 25 | 29 | 31 | 30 | 30 | 29 | 29 | 28 | 22 | 6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 3 | 11 | 25 | 29 | 31 | 30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 30 | 29 | 29 | 28 | 22 | 6 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 27 | 33 | 33 | 37 | 50 | 63 | 62 | 51 | 28 | 16 | 14 |
| Relative humidity (%) | 67 | 65 | 62 | 58 | 53 | 47 | 54 | 60 | 57 | 57 | 62 | 66 |
| Wind speed (mph) | 14.0 | 14.1 | 13.5 | 12.6 | 8.8 | 7.8 | 8.5 | 7.6 | 6.6 | 10.6 | 13.3 | 13.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 27 | 33 | 33 | 37 | 50 |
| Relative humidity (%) | 67 | 65 | 62 | 58 | 53 | 47 |
| Wind speed (mph) | 14.0 | 14.1 | 13.5 | 12.6 | 8.8 | 7.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 62 | 51 | 28 | 16 | 14 |
| Relative humidity (%) | 54 | 60 | 57 | 57 | 62 | 66 |
| Wind speed (mph) | 8.5 | 7.6 | 6.6 | 10.6 | 13.3 | 13.5 |
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.