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Wau, South Sudan climate
As Tropical savanna (dry summer)
Wau has a mildly seasonal tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is March with an average daily high near 40°C, while the coldest is August averaging around 21°C at night. Precipitation totals about 1031 mm a year and is strongly seasonal — August alone averages 199 mm while January barely receives 1 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)Wau climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 37 | 39 | 40 | 38 | 34 | 32 | 30 | 29 | 30 | 31 | 34 | 36 |
| Avg temp (°C) | 29 | 31 | 32 | 31 | 29 | 27 | 26 | 25 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 20 | 22 | 24 | 25 | 23 | 22 | 21 | 21 | 22 | 22 | 21 | 20 |
| Precipitation (mm) | 1 | 3 | 22 | 63 | 125 | 133 | 173 | 199 | 163 | 130 | 19 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 37 | 39 | 40 | 38 | 34 | 32 |
| Avg temp (°C) | 29 | 31 | 32 | 31 | 29 | 27 |
| Avg low (°C) | 20 | 22 | 24 | 25 | 23 | 22 |
| Precipitation (mm) | 1 | 3 | 22 | 63 | 125 | 133 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 29 | 30 | 31 | 34 | 36 |
| Avg temp (°C) | 26 | 25 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 21 | 21 | 22 | 22 | 21 | 20 |
| Precipitation (mm) | 173 | 199 | 163 | 130 | 19 | 1 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 30 | 28 | 30 | 28 | 23 | 10 | 5 | 3 | 4 | 9 | 21 | 29 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 30 | 28 | 30 | 28 | 23 | 10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 5 | 3 | 4 | 9 | 21 | 29 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 45 | 66 | 75 | 74 | 69 | 74 | 75 | 68 | 66 | 45 | 30 |
| Relative humidity (%) | 23 | 19 | 27 | 49 | 66 | 74 | 79 | 81 | 78 | 75 | 59 | 37 |
| Wind speed (mph) | 6.7 | 6.9 | 6.1 | 5.3 | 4.5 | 3.9 | 3.6 | 3.2 | 2.6 | 2.8 | 3.9 | 5.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 45 | 66 | 75 | 74 | 69 |
| Relative humidity (%) | 23 | 19 | 27 | 49 | 66 | 74 |
| Wind speed (mph) | 6.7 | 6.9 | 6.1 | 5.3 | 4.5 | 3.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 75 | 68 | 66 | 45 | 30 |
| Relative humidity (%) | 79 | 81 | 78 | 75 | 59 | 37 |
| Wind speed (mph) | 3.6 | 3.2 | 2.6 | 2.8 | 3.9 | 5.5 |
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.