Niono climate — normals and trends
Niono (Mali) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 28.9 °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 (34.0 °C on average) and the coldest is January (23.9 °C). Rainfall peaks in August.
Niono averages 0 frost days, 330 hot days (≥ 30 °C) and 67 rainy days per year.
Niono has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.1 °C (on 3 April 2024) and the coldest 9.1 °C (on 16 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
NionoSégou
- coords
- 14.25°, -5.99°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
28.9°C
Average daily high
35.2°C
Average daily low
23.2°C
Annual rainfall
477mm
Sunshine / day
11.1h
Mean relative humidity
39%
Average peak wind
16.4km/h
Seasonal range
10.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
330 d/yr
Rainy days (≥ 1 mm)
67 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.8 °C
Average feels-like low
22.6 °C
Average peak gust
33.7 km/h
Tropical nights (≥ 20 °C)
284 d/yr
Solar radiation
22.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.67 · 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
46.1 °C
3 April 2024
Coldest day
9.1 °C
16 January 1948
Wettest day
164 mm
21 August 1974
Windiest day
39.8 km/h
25 June 1986
Strongest gust
74.5 km/h
25 June 1986
Hottest feels-like
47.3 °C
10 June 1991
Coldest feels-like
5.2 °C
28 December 1946
Sunniest day
12.8 h
5 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 32.2 °C | +0.9 °C | 0 mm | -1 mm |
| Feb | 34.6 °C | +0.2 °C | 0 mm | 0 mm |
| Mar | 40.7 °C | +3.2 °C | 2 mm | +1 mm |
| Apr | 41.9 °C | +2.2 °C | 2 mm | -2 mm |
| May | 41.0 °C | +0.8 °C | 4 mm | -9 mm |
| Jun | 38.8 °C | +0.8 °C | 11 mm | -26 mm |
| Jul | 34.1 °C | +0.4 °C | 95 mm | -26 mm |
| Aug | 31.3 °C | 0.0 °C | 156 mm | -24 mm |
| Sep | 33.2 °C | +0.4 °C | 113 mm | +16 mm |
| Oct | 37.7 °C | +1.4 °C | 4 mm | -17 mm |
| Nov | 36.7 °C | +1.4 °C | 0 mm | -1 mm |
| Dec | 31.5 °C | -0.3 °C | 0 mm | -0 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 Niono?
Niono has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 28.9 °C and it receives 477 mm of precipitation per year.
What is the hottest day ever recorded in Niono?
The hottest day measured in Niono between 1940 and 2025 was 3 April 2024, reaching 46.1 °C.
What is the coldest day in Niono?
The coldest day measured in Niono between 1940 and 2025 was 16 January 1948, at 9.1 °C.
Does it snow in Niono?
Almost never: Niono sees virtually no snow, with about 0 frost days per year.
Has the climate of Niono warmed?
Yes: Niono warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Niono?
The wettest day measured in Niono between 1940 and 2025 was 21 August 1974, with 164 mm of rain in 24 hours.
What was the windiest day in Niono?
The windiest day measured in Niono between 1940 and 2025 was 25 June 1986, with winds reaching 39.8 km/h.
What is the warmest month in Niono?
The warmest month in Niono is May (34.0 °C on average); the coldest is January (23.9 °C).
How much does it rain in Niono?
Niono receives on average 477 mm of precipitation per year, spread over about 67 rainy days.
Is it sunny in Niono?
Niono gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
Are there tropical nights in Niono?
Yes: Niono has on average 284 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Niono?
In Niono, between 1940 and 2025, the highest apparent temperature reached 47.3 °C on 10 June 1991, and the lowest was 5.2 °C on 28 December 1946.
Compare Niono with another city
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Nearby cities
The climate around Niono