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Arta, Djibouti climate
BWh Hot desert
Arta has a mildly seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is June with an average daily high near 103°F, while the coldest is January averaging around 71°F at night. Precipitation totals about 11 inches a year and is strongly seasonal — April alone averages 1.6 inches while June barely receives 0.07 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)Arta climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 83 | 86 | 90 | 95 | 103 | 101 | 100 | 99 | 91 | 86 | 83 |
| Avg temp (°F) | 77 | 78 | 80 | 84 | 89 | 94 | 94 | 93 | 92 | 85 | 80 | 78 |
| Avg low (°F) | 71 | 72 | 74 | 78 | 82 | 86 | 86 | 86 | 85 | 79 | 75 | 72 |
| Precipitation (in) | 1.3 | 0.9 | 1.2 | 1.6 | 0.7 | 0.1 | 0.4 | 0.8 | 0.5 | 1.0 | 1.2 | 1.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 83 | 86 | 90 | 95 | 103 |
| Avg temp (°F) | 77 | 78 | 80 | 84 | 89 | 94 |
| Avg low (°F) | 71 | 72 | 74 | 78 | 82 | 86 |
| Precipitation (in) | 1.3 | 0.9 | 1.2 | 1.6 | 0.7 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 101 | 100 | 99 | 91 | 86 | 83 |
| Avg temp (°F) | 94 | 93 | 92 | 85 | 80 | 78 |
| Avg low (°F) | 86 | 86 | 85 | 79 | 75 | 72 |
| Precipitation (in) | 0.4 | 0.8 | 0.5 | 1.0 | 1.2 | 1.0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 0.0 | 0.2 | 2 | 13 | 27 | 30 | 31 | 31 | 29 | 18 | 1 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 0.0 | 0.2 | 2 | 13 | 27 | 30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 31 | 31 | 29 | 18 | 1 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 33 | 32 | 34 | 35 | 35 | 42 | 49 | 47 | 46 | 30 | 25 | 26 |
| Relative humidity (%) | 74 | 74 | 74 | 73 | 63 | 45 | 45 | 47 | 53 | 65 | 71 | 73 |
| Wind speed (mph) | 10.2 | 9.9 | 9.1 | 7.8 | 5.8 | 7.9 | 10.5 | 9.8 | 6.6 | 7.5 | 9.0 | 9.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 33 | 32 | 34 | 35 | 35 | 42 |
| Relative humidity (%) | 74 | 74 | 74 | 73 | 63 | 45 |
| Wind speed (mph) | 10.2 | 9.9 | 9.1 | 7.8 | 5.8 | 7.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 47 | 46 | 30 | 25 | 26 |
| Relative humidity (%) | 45 | 47 | 53 | 65 | 71 | 73 |
| Wind speed (mph) | 10.5 | 9.8 | 6.6 | 7.5 | 9.0 | 9.6 |
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.