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Massawa, Eritrea climate
BWh Hot desert
Massawa has a mildly seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is June with an average daily high near 38°C, while the coldest is January averaging around 20°C at night. Precipitation totals about 233 mm a year and is strongly seasonal — August alone averages 56 mm while January barely receives 6 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)Massawa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 30 | 32 | 34 | 36 | 38 | 37 | 36 | 36 | 34 | 32 | 30 |
| Avg temp (°C) | 25 | 25 | 27 | 29 | 31 | 33 | 33 | 32 | 31 | 30 | 28 | 26 |
| Avg low (°C) | 20 | 21 | 22 | 24 | 26 | 28 | 28 | 28 | 27 | 25 | 23 | 21 |
| Precipitation (mm) | 6 | 9 | 15 | 29 | 17 | 10 | 46 | 56 | 18 | 11 | 8 | 6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 30 | 32 | 34 | 36 | 38 |
| Avg temp (°C) | 25 | 25 | 27 | 29 | 31 | 33 |
| Avg low (°C) | 20 | 21 | 22 | 24 | 26 | 28 |
| Precipitation (mm) | 6 | 9 | 15 | 29 | 17 | 10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 37 | 36 | 36 | 34 | 32 | 30 |
| Avg temp (°C) | 33 | 32 | 31 | 30 | 28 | 26 |
| Avg low (°C) | 28 | 28 | 27 | 25 | 23 | 21 |
| Precipitation (mm) | 46 | 56 | 18 | 11 | 8 | 6 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 3 | 7 | 12 | 22 | 30 | 30 | 31 | 30 | 30 | 29 | 17 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 3 | 7 | 12 | 22 | 30 | 30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 31 | 30 | 30 | 29 | 17 | 4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 50 | 46 | 38 | 32 | 39 | 57 | 56 | 36 | 26 | 24 | 34 |
| Relative humidity (%) | 68 | 66 | 63 | 58 | 48 | 41 | 48 | 52 | 48 | 52 | 58 | 65 |
| Wind speed (mph) | 6.0 | 6.0 | 5.8 | 5.5 | 4.7 | 6.8 | 10.2 | 8.4 | 5.0 | 5.1 | 5.5 | 5.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 50 | 46 | 38 | 32 | 39 |
| Relative humidity (%) | 68 | 66 | 63 | 58 | 48 | 41 |
| Wind speed (mph) | 6.0 | 6.0 | 5.8 | 5.5 | 4.7 | 6.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 56 | 36 | 26 | 24 | 34 |
| Relative humidity (%) | 48 | 52 | 48 | 52 | 58 | 65 |
| Wind speed (mph) | 10.2 | 8.4 | 5.0 | 5.1 | 5.5 | 5.7 |
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.