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Rutana, Burundi climate
Aw Tropical savanna (dry winter)
Rutana has a remarkably steady warm-temperate climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is September with an average daily high near 30°C, while the coldest is July averaging around 12°C at night. Precipitation totals about 1084 mm a year and is strongly seasonal — January alone averages 178 mm while July barely receives 2 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)Rutana climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 27 | 26 | 26 | 27 | 27 | 29 | 30 | 30 | 27 | 27 |
| Avg temp (°C) | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 22 | 23 | 23 | 22 | 21 |
| Avg low (°C) | 16 | 16 | 17 | 16 | 15 | 13 | 12 | 14 | 16 | 17 | 16 | 16 |
| Precipitation (mm) | 178 | 145 | 151 | 137 | 55 | 10 | 2 | 8 | 23 | 79 | 135 | 160 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 27 | 26 | 26 | 27 |
| Avg temp (°C) | 22 | 22 | 22 | 21 | 21 | 20 |
| Avg low (°C) | 16 | 16 | 17 | 16 | 15 | 13 |
| Precipitation (mm) | 178 | 145 | 151 | 137 | 55 | 10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 30 | 30 | 27 | 27 |
| Avg temp (°C) | 20 | 22 | 23 | 23 | 22 | 21 |
| Avg low (°C) | 12 | 14 | 16 | 17 | 16 | 16 |
| Precipitation (mm) | 2 | 8 | 23 | 79 | 135 | 160 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 1 | 0.1 | — | — | — | — | 0.2 | 4 | 4 | 0.4 | 0.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 1 | 0.1 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | 0.2 | 4 | 4 | 0.4 | 0.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 78 | 79 | 81 | 68 | 46 | 36 | 48 | 65 | 78 | 84 | 82 |
| Relative humidity (%) | 79 | 78 | 80 | 82 | 77 | 70 | 63 | 58 | 56 | 64 | 76 | 79 |
| Wind speed (km/h) | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.3 | 1.9 | 2.4 | 2.2 | 1.5 | 0.9 | 0.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 78 | 79 | 81 | 68 | 46 |
| Relative humidity (%) | 79 | 78 | 80 | 82 | 77 | 70 |
| Wind speed (km/h) | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 36 | 48 | 65 | 78 | 84 | 82 |
| Relative humidity (%) | 63 | 58 | 56 | 64 | 76 | 79 |
| Wind speed (km/h) | 1.9 | 2.4 | 2.2 | 1.5 | 0.9 | 0.6 |
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.