Kayes, Mali climate
BSh Hot semi-arid
Kayes has a mildly seasonal tropical climate (Hot semi-arid, Köppen BSh). The hottest month is May with an average daily high near 43°C, while the coldest is January averaging around 18°C at night. Precipitation totals about 517 mm a year and is strongly seasonal — August alone averages 249 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)Kayes climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 37 | 40 | 43 | 43 | 40 | 35 | 33 | 34 | 37 | 37 | 35 |
| Avg temp (°C) | 26 | 29 | 32 | 35 | 36 | 34 | 30 | 29 | 29 | 31 | 29 | 27 |
| Avg low (°C) | 18 | 21 | 25 | 28 | 30 | 29 | 26 | 25 | 24 | 25 | 21 | 19 |
| Precipitation (mm) | 3 | 4 | 4 | 0 | 12 | 62 | — | 249 | 134 | 49 | 1 | 0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 37 | 40 | 43 | 43 | 40 |
| Avg temp (°C) | 26 | 29 | 32 | 35 | 36 | 34 |
| Avg low (°C) | 18 | 21 | 25 | 28 | 30 | 29 |
| Precipitation (mm) | 3 | 4 | 4 | 0 | 12 | 62 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 33 | 34 | 37 | 37 | 35 |
| Avg temp (°C) | 30 | 29 | 29 | 31 | 29 | 27 |
| Avg low (°C) | 26 | 25 | 24 | 25 | 21 | 19 |
| Precipitation (mm) | — | 249 | 134 | 49 | 1 | 0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 33 | 40 | 45 | 56 | 61 | 67 | 74 | 61 | 49 | 41 | 42 |
| Relative humidity (%) | 21 | 16 | 15 | 16 | 24 | 46 | 68 | 80 | 80 | 66 | 41 | 28 |
| Wind speed (km/h) | 12.3 | 12.6 | 11.7 | 10.8 | 10.4 | 10.6 | 8.9 | 6.9 | 5.6 | 5.5 | 7.7 | 11.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 33 | 40 | 45 | 56 | 61 |
| Relative humidity (%) | 21 | 16 | 15 | 16 | 24 | 46 |
| Wind speed (km/h) | 12.3 | 12.6 | 11.7 | 10.8 | 10.4 | 10.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 74 | 61 | 49 | 41 | 42 |
| Relative humidity (%) | 68 | 80 | 80 | 66 | 41 | 28 |
| Wind speed (km/h) | 8.9 | 6.9 | 5.6 | 5.5 | 7.7 | 11.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 23 years of daily observations at Kayes/dag-dag, a weather station, about 4 km from the city centre. The underlying daily records come from NOAA's global station network.
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.