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Sumbawanga, Tanzania climate
Cwa Monsoon-influenced humid subtropical
Sumbawanga has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is October with an average daily high near 29°C, while the coldest is July averaging around 12°C at night. Precipitation totals about 1556 mm a year and is strongly seasonal — January alone averages 355 mm while July barely receives 1 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)Sumbawanga climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 25 | 27 | 29 | 27 | 25 |
| Avg temp (°C) | 21 | 21 | 21 | 21 | 20 | 18 | 18 | 20 | 22 | 24 | 23 | 22 |
| Avg low (°C) | 18 | 19 | 19 | 18 | 16 | 13 | 12 | 14 | 17 | 19 | 20 | 19 |
| Precipitation (mm) | 355 | 285 | 277 | 138 | 26 | 2 | 1 | 2 | 7 | 33 | 140 | 289 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 24 | 23 | 23 | 23 |
| Avg temp (°C) | 21 | 21 | 21 | 21 | 20 | 18 |
| Avg low (°C) | 18 | 19 | 19 | 18 | 16 | 13 |
| Precipitation (mm) | 355 | 285 | 277 | 138 | 26 | 2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 25 | 27 | 29 | 27 | 25 |
| Avg temp (°C) | 18 | 20 | 22 | 24 | 23 | 22 |
| Avg low (°C) | 12 | 14 | 17 | 19 | 20 | 19 |
| Precipitation (mm) | 1 | 2 | 7 | 33 | 140 | 289 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | — | — | — | — | — | — | 0.0 | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | 0.0 | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 85 | 82 | 78 | 62 | 40 | 25 | 21 | 26 | 36 | 57 | 73 | 82 |
| Relative humidity (%) | 78 | 77 | 80 | 82 | 76 | 70 | 64 | 58 | 53 | 52 | 62 | 74 |
| Wind speed (m/s) | 1.9 | 1.8 | 2.0 | 3.0 | 3.4 | 3.5 | 3.6 | 3.6 | 3.6 | 3.3 | 2.6 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 85 | 82 | 78 | 62 | 40 | 25 |
| Relative humidity (%) | 78 | 77 | 80 | 82 | 76 | 70 |
| Wind speed (m/s) | 1.9 | 1.8 | 2.0 | 3.0 | 3.4 | 3.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 21 | 26 | 36 | 57 | 73 | 82 |
| Relative humidity (%) | 64 | 58 | 53 | 52 | 62 | 74 |
| Wind speed (m/s) | 3.6 | 3.6 | 3.6 | 3.3 | 2.6 | 2.1 |
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.