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Bîr Mogreïn, Mauritania climate
BWh Hot desert
Bîr Mogreïn has a seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is August with an average daily high near 42°C, while the coldest is January averaging around 9°C at night. Precipitation totals about 35 mm a year and is strongly seasonal — October alone averages 11 mm while July barely receives 0 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)Bîr Mogreïn climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 25 | 29 | 32 | 35 | 38 | 42 | 42 | 38 | 33 | 28 | 24 |
| Avg temp (°C) | 16 | 18 | 21 | 23 | 26 | 29 | 32 | 33 | 30 | 26 | 21 | 17 |
| Avg low (°C) | 9 | 10 | 12 | 14 | 17 | 19 | 22 | 23 | 22 | 18 | 14 | 10 |
| Precipitation (mm) | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 3 | 5 | 11 | 2 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 25 | 29 | 32 | 35 | 38 |
| Avg temp (°C) | 16 | 18 | 21 | 23 | 26 | 29 |
| Avg low (°C) | 9 | 10 | 12 | 14 | 17 | 19 |
| Precipitation (mm) | 3 | 3 | 2 | 2 | 1 | 1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 42 | 42 | 38 | 33 | 28 | 24 |
| Avg temp (°C) | 32 | 33 | 30 | 26 | 21 | 17 |
| Avg low (°C) | 22 | 23 | 22 | 18 | 14 | 10 |
| Precipitation (mm) | 0 | 3 | 5 | 11 | 2 | 4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | 0.3 | 6 | 13 | 21 | 29 | 31 | 31 | 28 | 18 | 3 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | 0.3 | 6 | 13 | 21 | 29 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 31 | 31 | 28 | 18 | 3 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 23 | 24 | 22 | 23 | 24 | 18 | 24 | 29 | 30 | 28 | 27 | 26 |
| Relative humidity (%) | 43 | 42 | 39 | 38 | 36 | 35 | 30 | 32 | 37 | 42 | 44 | 46 |
| Wind speed (mph) | 8.2 | 8.9 | 9.1 | 10.3 | 10.7 | 11.9 | 13.3 | 12.2 | 10.7 | 8.2 | 7.6 | 7.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 23 | 24 | 22 | 23 | 24 | 18 |
| Relative humidity (%) | 43 | 42 | 39 | 38 | 36 | 35 |
| Wind speed (mph) | 8.2 | 8.9 | 9.1 | 10.3 | 10.7 | 11.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 29 | 30 | 28 | 27 | 26 |
| Relative humidity (%) | 30 | 32 | 37 | 42 | 44 | 46 |
| Wind speed (mph) | 13.3 | 12.2 | 10.7 | 8.2 | 7.6 | 7.9 |
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.