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Yambio, South Sudan climate
As Tropical savanna (dry summer)
Yambio has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is February with an average daily high near 96°F, while the coldest is August averaging around 67°F at night. Precipitation totals about 56 inches a year and is strongly seasonal — October alone averages 8.5 inches while January barely receives 0.52 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)Yambio climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 93 | 96 | 93 | 87 | 84 | 83 | 82 | 82 | 83 | 83 | 85 | 90 |
| Avg temp (°F) | 80 | 82 | 82 | 79 | 77 | 76 | 75 | 75 | 76 | 76 | 77 | 78 |
| Avg low (°F) | 66 | 69 | 70 | 70 | 69 | 68 | 67 | 67 | 68 | 68 | 68 | 67 |
| Precipitation (in) | 0.5 | 0.8 | 3.5 | 6.6 | 6.8 | 5.4 | 5.7 | 6.7 | 6.9 | 8.5 | 4.2 | 0.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 93 | 96 | 93 | 87 | 84 | 83 |
| Avg temp (°F) | 80 | 82 | 82 | 79 | 77 | 76 |
| Avg low (°F) | 66 | 69 | 70 | 70 | 69 | 68 |
| Precipitation (in) | 0.5 | 0.8 | 3.5 | 6.6 | 6.8 | 5.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 82 | 83 | 83 | 85 | 90 |
| Avg temp (°F) | 75 | 75 | 76 | 76 | 77 | 78 |
| Avg low (°F) | 67 | 67 | 68 | 68 | 68 | 67 |
| Precipitation (in) | 5.7 | 6.7 | 6.9 | 8.5 | 4.2 | 0.7 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 21 | 23 | 21 | 6 | 2 | 0.9 | 2 | 0.1 | 0.9 | 0.9 | 4 | 16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 21 | 23 | 21 | 6 | 2 | 0.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 2 | 0.1 | 0.9 | 0.9 | 4 | 16 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 64 | 74 | 78 | 73 | 74 | 79 | 77 | 74 | 77 | 66 | 54 |
| Relative humidity (%) | 50 | 49 | 64 | 78 | 82 | 82 | 82 | 83 | 82 | 83 | 77 | 63 |
| Wind speed (mph) | 4.8 | 4.8 | 4.3 | 3.7 | 3.2 | 3.3 | 3.1 | 3.0 | 2.9 | 2.7 | 3.4 | 4.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 64 | 74 | 78 | 73 | 74 |
| Relative humidity (%) | 50 | 49 | 64 | 78 | 82 | 82 |
| Wind speed (mph) | 4.8 | 4.8 | 4.3 | 3.7 | 3.2 | 3.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 77 | 74 | 77 | 66 | 54 |
| Relative humidity (%) | 82 | 83 | 82 | 83 | 77 | 63 |
| Wind speed (mph) | 3.1 | 3.0 | 2.9 | 2.7 | 3.4 | 4.2 |
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.