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Isale, Burundi climate
Af Tropical rainforest
Isale has a remarkably steady warm-temperate climate (Tropical rainforest, Köppen Af). The hottest month is September with an average daily high near 82°F, while the coldest is July averaging around 60°F at night. Precipitation totals about 202 inches a year and is strongly seasonal — November alone averages 27.9 inches while July barely receives 2.50 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)Isale climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 79 | 79 | 78 | 78 | 77 | 78 | 81 | 82 | 81 | 78 | 78 |
| Avg temp (°F) | 71 | 72 | 72 | 71 | 70 | 69 | 69 | 71 | 73 | 73 | 71 | 71 |
| Avg low (°F) | 64 | 65 | 65 | 64 | 63 | 61 | 60 | 62 | 64 | 65 | 64 | 64 |
| Precipitation (in) | 20.2 | 18.5 | 23.4 | 24.2 | 14.7 | 4.8 | 2.5 | 5.4 | 11.0 | 24.0 | 27.9 | 25.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 79 | 79 | 78 | 78 | 77 |
| Avg temp (°F) | 71 | 72 | 72 | 71 | 70 | 69 |
| Avg low (°F) | 64 | 65 | 65 | 64 | 63 | 61 |
| Precipitation (in) | 20.2 | 18.5 | 23.4 | 24.2 | 14.7 | 4.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 78 | 81 | 82 | 81 | 78 | 78 |
| Avg temp (°F) | 69 | 71 | 73 | 73 | 71 | 71 |
| Avg low (°F) | 60 | 62 | 64 | 65 | 64 | 64 |
| Precipitation (in) | 2.5 | 5.4 | 11.0 | 24.0 | 27.9 | 25.3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | — | 0.1 | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | — | 0.1 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | — | — | — | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 79 | 80 | 82 | 71 | 54 | 44 | 53 | 66 | 79 | 83 | 81 |
| Relative humidity (%) | 75 | 74 | 76 | 78 | 75 | 69 | 63 | 59 | 59 | 66 | 74 | 76 |
| Wind speed (mph) | 1.8 | 1.9 | 2.0 | 2.1 | 2.4 | 2.5 | 2.7 | 3.0 | 2.9 | 2.6 | 2.1 | 1.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 79 | 80 | 82 | 71 | 54 |
| Relative humidity (%) | 75 | 74 | 76 | 78 | 75 | 69 |
| Wind speed (mph) | 1.8 | 1.9 | 2.0 | 2.1 | 2.4 | 2.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 53 | 66 | 79 | 83 | 81 |
| Relative humidity (%) | 63 | 59 | 59 | 66 | 74 | 76 |
| Wind speed (mph) | 2.7 | 3.0 | 2.9 | 2.6 | 2.1 | 1.9 |
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.