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Isiro, DR Congo climate
Am Tropical monsoon
Isiro has a remarkably steady warm-temperate climate (Tropical monsoon, Köppen Am). The hottest month is March with an average daily high near 85°F, while the coldest is July averaging around 67°F at night. Precipitation totals about 71 inches a year and is strongly seasonal — October alone averages 9.4 inches while January barely receives 1.50 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)Isiro climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 87 | 85 | 81 | 80 | 80 | 79 | 80 | 80 | 79 | 79 | 82 |
| Avg temp (°F) | 75 | 77 | 77 | 75 | 74 | 74 | 73 | 73 | 74 | 73 | 74 | 74 |
| Avg low (°F) | 65 | 67 | 69 | 69 | 69 | 68 | 67 | 67 | 68 | 68 | 68 | 66 |
| Precipitation (in) | 1.5 | 2.5 | 6.0 | 7.7 | 6.3 | 5.5 | 6.0 | 7.4 | 7.9 | 9.4 | 8.2 | 2.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 87 | 85 | 81 | 80 | 80 |
| Avg temp (°F) | 75 | 77 | 77 | 75 | 74 | 74 |
| Avg low (°F) | 65 | 67 | 69 | 69 | 69 | 68 |
| Precipitation (in) | 1.5 | 2.5 | 6.0 | 7.7 | 6.3 | 5.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 79 | 80 | 80 | 79 | 79 | 82 |
| Avg temp (°F) | 73 | 73 | 74 | 73 | 74 | 74 |
| Avg low (°F) | 67 | 67 | 68 | 68 | 68 | 66 |
| Precipitation (in) | 6.0 | 7.4 | 7.9 | 9.4 | 8.2 | 2.3 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 3 | 6 | 4 | 0.6 | — | 0.1 | 0.1 | 0.0 | 0.1 | — | — | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 3 | 6 | 4 | 0.6 | — | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 90°F (days) | 0.1 | 0.0 | 0.1 | — | — | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 71 | 80 | 82 | 79 | 81 | 82 | 82 | 80 | 82 | 77 | 67 |
| Relative humidity (%) | 76 | 75 | 83 | 90 | 91 | 90 | 88 | 89 | 89 | 91 | 90 | 83 |
| Wind speed (mph) | 0.4 | 0.4 | 0.2 | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 | 0.3 | 0.4 | 0.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 71 | 80 | 82 | 79 | 81 |
| Relative humidity (%) | 76 | 75 | 83 | 90 | 91 | 90 |
| Wind speed (mph) | 0.4 | 0.4 | 0.2 | 0.3 | 0.3 | 0.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 82 | 82 | 80 | 82 | 77 | 67 |
| Relative humidity (%) | 88 | 89 | 89 | 91 | 90 | 83 |
| Wind speed (mph) | 0.4 | 0.4 | 0.4 | 0.3 | 0.4 | 0.4 |
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.