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Kirundo, Burundi climate
Aw Tropical savanna (dry winter)
Kirundo has a remarkably steady warm-temperate climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is September with an average daily high near 29°C, while the coldest is June averaging around 14°C at night. Precipitation totals about 1926 mm a year and is strongly seasonal — April alone averages 315 mm while July barely receives 7 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)Kirundo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 27 | 26 | 25 | 26 | 27 | 28 | 29 | 27 | 26 | 26 |
| Avg temp (°C) | 21 | 22 | 21 | 21 | 20 | 20 | 20 | 21 | 22 | 22 | 21 | 21 |
| Avg low (°C) | 16 | 16 | 16 | 16 | 15 | 14 | 13 | 15 | 16 | 16 | 16 | 16 |
| Precipitation (mm) | 164 | 159 | 259 | 315 | 156 | 21 | 7 | 33 | 84 | 217 | 286 | 223 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 27 | 26 | 25 | 26 |
| Avg temp (°C) | 21 | 22 | 21 | 21 | 20 | 20 |
| Avg low (°C) | 16 | 16 | 16 | 16 | 15 | 14 |
| Precipitation (mm) | 164 | 159 | 259 | 315 | 156 | 21 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 29 | 27 | 26 | 26 |
| Avg temp (°C) | 20 | 21 | 22 | 22 | 21 | 21 |
| Avg low (°C) | 13 | 15 | 16 | 16 | 16 | 16 |
| Precipitation (mm) | 7 | 33 | 84 | 217 | 286 | 223 |
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 | 0.2 | 0.0 | — | — | — | — | 0.5 | 0.3 | 0.0 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 1 | 0.2 | 0.0 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | 0.5 | 0.3 | 0.0 | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 78 | 80 | 83 | 74 | 56 | 49 | 60 | 71 | 80 | 83 | 80 |
| Relative humidity (%) | 73 | 72 | 76 | 81 | 79 | 69 | 61 | 58 | 61 | 70 | 77 | 76 |
| Wind speed (km/h) | 4.3 | 4.5 | 4.6 | 5.2 | 5.9 | 6.2 | 6.9 | 7.2 | 6.8 | 6.2 | 5.1 | 4.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 78 | 80 | 83 | 74 | 56 |
| Relative humidity (%) | 73 | 72 | 76 | 81 | 79 | 69 |
| Wind speed (km/h) | 4.3 | 4.5 | 4.6 | 5.2 | 5.9 | 6.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 60 | 71 | 80 | 83 | 80 |
| Relative humidity (%) | 61 | 58 | 61 | 70 | 77 | 76 |
| Wind speed (km/h) | 6.9 | 7.2 | 6.8 | 6.2 | 5.1 | 4.6 |
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.