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Choma, Zambia climate
Cwa Monsoon-influenced humid subtropical
Choma has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is October with an average daily high near 33°C, while the coldest is July averaging around 8°C at night. Precipitation totals about 951 mm a year and is strongly seasonal — January alone averages 237 mm while August 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)Choma climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 27 | 26 | 25 | 23 | 23 | 27 | 31 | 33 | 31 | 28 |
| Avg temp (°C) | 22 | 22 | 22 | 20 | 18 | 16 | 16 | 19 | 23 | 25 | 25 | 23 |
| Avg low (°C) | 18 | 17 | 17 | 14 | 11 | 9 | 8 | 11 | 15 | 18 | 19 | 18 |
| Precipitation (mm) | 237 | 190 | 136 | 36 | 6 | 3 | 3 | 1 | 2 | 17 | 105 | 216 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 27 | 26 | 25 | 23 |
| Avg temp (°C) | 22 | 22 | 22 | 20 | 18 | 16 |
| Avg low (°C) | 18 | 17 | 17 | 14 | 11 | 9 |
| Precipitation (mm) | 237 | 190 | 136 | 36 | 6 | 3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 27 | 31 | 33 | 31 | 28 |
| Avg temp (°C) | 16 | 19 | 23 | 25 | 25 | 23 |
| Avg low (°C) | 8 | 11 | 15 | 18 | 19 | 18 |
| Precipitation (mm) | 3 | 1 | 2 | 17 | 105 | 216 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 2 | 1 | 3 | 1 | 0.2 | — | — | 0.6 | 10 | 20 | 12 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 2 | 1 | 3 | 1 | 0.2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | 0.6 | 10 | 20 | 12 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 71 | 61 | 42 | 29 | 26 | 27 | 19 | 20 | 34 | 64 | 77 |
| Relative humidity (%) | 77 | 79 | 77 | 68 | 57 | 55 | 51 | 41 | 34 | 38 | 55 | 72 |
| Wind speed (m/s) | 2.3 | 2.1 | 2.2 | 2.3 | 2.1 | 2.3 | 2.5 | 2.8 | 3.4 | 3.7 | 3.0 | 2.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 71 | 61 | 42 | 29 | 26 |
| Relative humidity (%) | 77 | 79 | 77 | 68 | 57 | 55 |
| Wind speed (m/s) | 2.3 | 2.1 | 2.2 | 2.3 | 2.1 | 2.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 27 | 19 | 20 | 34 | 64 | 77 |
| Relative humidity (%) | 51 | 41 | 34 | 38 | 55 | 72 |
| Wind speed (m/s) | 2.5 | 2.8 | 3.4 | 3.7 | 3.0 | 2.4 |
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.