Home › Cities › Tanzania › Mwanza
Mwanza, Tanzania climate
As Tropical savanna (dry summer)
Mwanza has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is September with an average daily high near 30°C, while the coldest is June averaging around 18°C at night. Precipitation totals about 1711 mm a year and is strongly seasonal — November alone averages 281 mm while July barely receives 13 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)Mwanza climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 28 | 28 | 28 | 28 | 29 | 30 | 30 | 29 | 27 | 27 |
| Avg temp (°C) | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 23 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 19 | 18 | 18 | 19 | 21 | 21 | 20 | 20 |
| Precipitation (mm) | 165 | 118 | 184 | 200 | 90 | 35 | 13 | 56 | 110 | 225 | 281 | 234 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 28 | 28 | 28 | 28 |
| Avg temp (°C) | 24 | 24 | 24 | 24 | 23 | 23 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 19 | 18 |
| Precipitation (mm) | 165 | 118 | 184 | 200 | 90 | 35 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 30 | 30 | 29 | 27 | 27 |
| Avg temp (°C) | 23 | 24 | 25 | 25 | 24 | 23 |
| Avg low (°C) | 18 | 19 | 21 | 21 | 20 | 20 |
| Precipitation (mm) | 13 | 56 | 110 | 225 | 281 | 234 |
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 | 2 | 0.3 | 0.1 | — | — | 0.1 | 3 | 4 | 0.4 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 1 | 2 | 0.3 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | 0.1 | 3 | 4 | 0.4 | 0.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 68 | 69 | 71 | 59 | 43 | 34 | 44 | 58 | 71 | 76 | 71 |
| Relative humidity (%) | 68 | 65 | 68 | 72 | 68 | 59 | 50 | 48 | 51 | 60 | 70 | 70 |
| Wind speed (mph) | 5.1 | 5.4 | 5.6 | 6.2 | 7.3 | 8.0 | 8.8 | 8.1 | 7.0 | 6.7 | 5.7 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 68 | 69 | 71 | 59 | 43 |
| Relative humidity (%) | 68 | 65 | 68 | 72 | 68 | 59 |
| Wind speed (mph) | 5.1 | 5.4 | 5.6 | 6.2 | 7.3 | 8.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 34 | 44 | 58 | 71 | 76 | 71 |
| Relative humidity (%) | 50 | 48 | 51 | 60 | 70 | 70 |
| Wind speed (mph) | 8.8 | 8.1 | 7.0 | 6.7 | 5.7 | 5.2 |
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.