Kayes climate — normals and trends
Kayes (Mali) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 29.7 °C and it receives 477 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is May (35.2 °C on average) and the coldest is January (25.5 °C). Rainfall peaks in August.
Kayes averages 0 frost days, 341 hot days (≥ 30 °C) and 57 rainy days per year.
Kayes has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The hottest day of the period reached 47.2 °C (on 25 April 2024) and the coldest 11.4 °C (on 17 January 1948).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
KayesKayes
- coords
- 14.45°, -11.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
29.7°C
Average daily high
36.0°C
Average daily low
24.1°C
Annual rainfall
477mm
Sunshine / day
10.7h
Mean relative humidity
41%
Average peak wind
14.7km/h
Seasonal range
9.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
341 d/yr
Rainy days (≥ 1 mm)
57 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.4 °C
Average feels-like low
24.0 °C
Average peak gust
32.5 km/h
Tropical nights (≥ 20 °C)
309 d/yr
Solar radiation
21.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.62 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
47.2 °C
25 April 2024
Coldest day
11.4 °C
17 January 1948
Wettest day
185 mm
20 August 1967
Windiest day
31.3 km/h
14 June 2020
Strongest gust
67.0 km/h
14 June 2020
Hottest feels-like
51.3 °C
21 May 1987
Coldest feels-like
7.4 °C
28 December 1960
Sunniest day
12.5 h
27 May 1949
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 33.0 °C | -0.1 °C | 0 mm | -0 mm |
| Feb | 34.5 °C | -1.5 °C | 0 mm | -0 mm |
| Mar | 40.0 °C | +1.1 °C | 0 mm | -0 mm |
| Apr | 42.3 °C | +1.2 °C | 1 mm | 0 mm |
| May | 41.5 °C | +0.1 °C | 2 mm | -3 mm |
| Jun | 37.7 °C | -0.8 °C | 31 mm | -5 mm |
| Jul | 33.3 °C | -0.5 °C | 31 mm | -73 mm |
| Aug | 31.5 °C | 0.0 °C | 204 mm | +33 mm |
| Sep | 32.7 °C | +0.4 °C | 102 mm | -22 mm |
| Oct | 36.6 °C | +1.1 °C | 14 mm | -18 mm |
| Nov | 36.7 °C | +0.6 °C | 0 mm | -2 mm |
| Dec | 32.6 °C | -0.7 °C | 0 mm | -1 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Kayes?
Kayes has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 29.7 °C and it receives 477 mm of precipitation per year.
What is the hottest day ever recorded in Kayes?
The hottest day measured in Kayes between 1940 and 2025 was 25 April 2024, reaching 47.2 °C.
What is the coldest day in Kayes?
The coldest day measured in Kayes between 1940 and 2025 was 17 January 1948, at 11.4 °C.
Does it snow in Kayes?
Almost never: Kayes sees virtually no snow, with about 0 frost days per year.
Has the climate of Kayes warmed?
Yes: Kayes warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kayes?
The wettest day measured in Kayes between 1940 and 2025 was 20 August 1967, with 185 mm of rain in 24 hours.
What was the windiest day in Kayes?
The windiest day measured in Kayes between 1940 and 2025 was 14 June 2020, with winds reaching 31.3 km/h.
What is the warmest month in Kayes?
The warmest month in Kayes is May (35.2 °C on average); the coldest is January (25.5 °C).
How much does it rain in Kayes?
Kayes receives on average 477 mm of precipitation per year, spread over about 57 rainy days.
Is it sunny in Kayes?
Kayes gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Kayes?
Yes: Kayes has on average 309 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kayes?
In Kayes, between 1940 and 2025, the highest apparent temperature reached 51.3 °C on 21 May 1987, and the lowest was 7.4 °C on 28 December 1960.
Compare Kayes with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kayes