Wa, Ghana climate
As Tropical savanna (dry summer)
Wa has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is March with an average daily high near 38°C, while the coldest is August averaging around 22°C at night. Precipitation totals about 974 mm a year and is strongly seasonal — August alone averages 229 mm while December barely receives 0 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)Wa climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 37 | 38 | 37 | 35 | 33 | 31 | 30 | 30 | 32 | 34 | 34 |
| Avg temp (°C) | 26 | 29 | 31 | 31 | 30 | 28 | 26 | 26 | 26 | 27 | 27 | 26 |
| Avg low (°C) | 18 | 21 | 24 | 25 | 24 | 23 | 22 | 22 | 22 | 22 | 21 | 17 |
| Precipitation (mm) | 1 | 6 | 25 | 67 | 98 | 102 | 160 | 229 | 189 | 87 | 10 | 0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 37 | 38 | 37 | 35 | 33 |
| Avg temp (°C) | 26 | 29 | 31 | 31 | 30 | 28 |
| Avg low (°C) | 18 | 21 | 24 | 25 | 24 | 23 |
| Precipitation (mm) | 1 | 6 | 25 | 67 | 98 | 102 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 30 | 30 | 32 | 34 | 34 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 27 | 26 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 21 | 17 |
| Precipitation (mm) | 160 | 229 | 189 | 87 | 10 | 0 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 28 | 28 | 30 | 29 | 27 | 19 | 6 | 1 | 2 | 13 | 26 | 27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 28 | 28 | 30 | 29 | 27 | 19 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 6 | 1 | 2 | 13 | 26 | 27 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 23 | 32 | 56 | 68 | 68 | 58 | 68 | 74 | 66 | 49 | 31 | 21 |
| Relative humidity (%) | 30 | 28 | 41 | 58 | 66 | 72 | 78 | 83 | 82 | 77 | 60 | 42 |
| Wind speed (mph) | 5.9 | 5.7 | 5.1 | 5.3 | 4.9 | 4.5 | 4.2 | 4.0 | 3.1 | 3.3 | 3.8 | 5.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 23 | 32 | 56 | 68 | 68 | 58 |
| Relative humidity (%) | 30 | 28 | 41 | 58 | 66 | 72 |
| Wind speed (mph) | 5.9 | 5.7 | 5.1 | 5.3 | 4.9 | 4.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 74 | 66 | 49 | 31 | 21 |
| Relative humidity (%) | 78 | 83 | 82 | 77 | 60 | 42 |
| Wind speed (mph) | 4.2 | 4.0 | 3.1 | 3.3 | 3.8 | 5.0 |
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.