Ndioum climate — normals and trends
Ndioum (Senegal) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 29.3 °C and it receives 175 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 (32.8 °C on average) and the coldest is January (23.9 °C). Rainfall peaks in August.
Ndioum averages 0 frost days, 336 hot days (≥ 30 °C) and 26 rainy days per year.
Ndioum has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 47.2 °C (on 19 June 2010) and the coldest 9.6 °C (on 8 January 1965).
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
NdioumSaint-Louis
- coords
- 16.51°, -14.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
29.3°C
Average daily high
36.0°C
Average daily low
23.0°C
Annual rainfall
175mm
Sunshine / day
11.1h
Mean relative humidity
37%
Average peak wind
22.7km/h
Seasonal range
8.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
336 d/yr
Rainy days (≥ 1 mm)
26 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.5 °C
Average feels-like low
21.7 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
280 d/yr
Solar radiation
23.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.69 · 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
19 June 2010
Coldest day
9.6 °C
8 January 1965
Wettest day
92 mm
27 August 1949
Windiest day
48.8 km/h
16 August 1987
Strongest gust
77.0 km/h
15 May 1986
Hottest feels-like
47.5 °C
24 June 1998
Coldest feels-like
4.4 °C
8 January 1965
Sunniest day
12.1 h
8 July 1940
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 | 32.5 °C | +1.6 °C | 0 mm | -2 mm |
| Feb | 33.8 °C | +0.5 °C | 0 mm | -1 mm |
| Mar | 36.2 °C | +0.2 °C | 0 mm | -0 mm |
| Apr | 39.8 °C | +1.4 °C | 1 mm | +1 mm |
| May | 41.7 °C | +1.4 °C | 0 mm | -1 mm |
| Jun | 39.9 °C | 0.0 °C | 0 mm | -3 mm |
| Jul | 37.3 °C | +0.2 °C | 9 mm | -12 mm |
| Aug | 34.8 °C | -0.5 °C | 102 mm | +29 mm |
| Sep | 36.3 °C | +0.4 °C | 47 mm | -9 mm |
| Oct | 39.2 °C | +1.3 °C | 8 mm | -8 mm |
| Nov | 36.8 °C | +1.1 °C | 0 mm | -1 mm |
| Dec | 30.5 °C | -1.1 °C | 3 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 Ndioum?
Ndioum has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 29.3 °C and it receives 175 mm of precipitation per year.
What is the hottest day ever recorded in Ndioum?
The hottest day measured in Ndioum between 1940 and 2025 was 19 June 2010, reaching 47.2 °C.
What is the coldest day in Ndioum?
The coldest day measured in Ndioum between 1940 and 2025 was 8 January 1965, at 9.6 °C.
Does it snow in Ndioum?
Almost never: Ndioum sees virtually no snow, with about 0 frost days per year.
Has the climate of Ndioum warmed?
Yes: Ndioum warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ndioum?
The wettest day measured in Ndioum between 1940 and 2025 was 27 August 1949, with 92 mm of rain in 24 hours.
What was the windiest day in Ndioum?
The windiest day measured in Ndioum between 1940 and 2025 was 16 August 1987, with winds reaching 48.8 km/h.
What is the warmest month in Ndioum?
The warmest month in Ndioum is May (32.8 °C on average); the coldest is January (23.9 °C).
How much does it rain in Ndioum?
Ndioum receives on average 175 mm of precipitation per year, spread over about 26 rainy days.
Is it sunny in Ndioum?
Ndioum gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
Are there tropical nights in Ndioum?
Yes: Ndioum has on average 280 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ndioum?
In Ndioum, between 1940 and 2025, the highest apparent temperature reached 47.5 °C on 24 June 1998, and the lowest was 4.4 °C on 8 January 1965.
Compare Ndioum with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ndioum