Ayoun El Atrous climate — normals and trends
Ayoun El Atrous (Mauritania) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 29.3 °C and it receives 154 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 June (35.3 °C on average) and the coldest is January (21.5 °C). Rainfall peaks in August.
Ayoun El Atrous averages 0 frost days, 308 hot days (≥ 30 °C) and 26 rainy days per year.
Ayoun El Atrous has warmed by +3.1 °C between 1940 and 2025, or +0.37 °C per decade. This trend is statistically significant.
The hottest day of the period reached 46.2 °C (on 29 May 2016) and the coldest 6.2 °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
Ayoun El AtrousHodh El Gharbi
- coords
- 16.66°, -9.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
29.3°C
Average daily high
35.6°C
Average daily low
23.3°C
Annual rainfall
154mm
Sunshine / day
11.3h
Mean relative humidity
29%
Average peak wind
22.8km/h
Seasonal range
13.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
308 d/yr
Rainy days (≥ 1 mm)
26 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.1 °C
Average feels-like low
21.0 °C
Average peak gust
38.1 km/h
Tropical nights (≥ 20 °C)
261 d/yr
Solar radiation
23.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.75 · 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
46.2 °C
29 May 2016
Coldest day
6.2 °C
17 January 1948
Wettest day
204 mm
30 July 2022
Windiest day
49.1 km/h
3 July 2024
Strongest gust
77.0 km/h
28 March 2012
Hottest feels-like
47.5 °C
3 June 2021
Coldest feels-like
0.6 °C
30 December 1940
Sunniest day
12.9 h
26 May 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 | 29.4 °C | +1.1 °C | 0 mm | -1 mm |
| Feb | 31.6 °C | 0.0 °C | 0 mm | -1 mm |
| Mar | 38.3 °C | +3.1 °C | 0 mm | -0 mm |
| Apr | 41.3 °C | +2.8 °C | 0 mm | -1 mm |
| May | 42.9 °C | +2.2 °C | 2 mm | 0 mm |
| Jun | 42.0 °C | +1.1 °C | 1 mm | -5 mm |
| Jul | 38.1 °C | -0.1 °C | 9 mm | -18 mm |
| Aug | 36.6 °C | +0.8 °C | 40 mm | -25 mm |
| Sep | 37.1 °C | +0.1 °C | 49 mm | +10 mm |
| Oct | 40.3 °C | +2.7 °C | 1 mm | -9 mm |
| Nov | 36.4 °C | +2.5 °C | 0 mm | -1 mm |
| Dec | 28.4 °C | -0.5 °C | 0 mm | -2 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 Ayoun El Atrous?
Ayoun El Atrous has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 29.3 °C and it receives 154 mm of precipitation per year.
What is the hottest day ever recorded in Ayoun El Atrous?
The hottest day measured in Ayoun El Atrous between 1940 and 2025 was 29 May 2016, reaching 46.2 °C.
What is the coldest day in Ayoun El Atrous?
The coldest day measured in Ayoun El Atrous between 1940 and 2025 was 17 January 1948, at 6.2 °C.
Does it snow in Ayoun El Atrous?
Almost never: Ayoun El Atrous sees virtually no snow, with about 0 frost days per year.
Has the climate of Ayoun El Atrous warmed?
Yes: Ayoun El Atrous warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ayoun El Atrous?
The wettest day measured in Ayoun El Atrous between 1940 and 2025 was 30 July 2022, with 204 mm of rain in 24 hours.
What was the windiest day in Ayoun El Atrous?
The windiest day measured in Ayoun El Atrous between 1940 and 2025 was 3 July 2024, with winds reaching 49.1 km/h.
What is the warmest month in Ayoun El Atrous?
The warmest month in Ayoun El Atrous is June (35.3 °C on average); the coldest is January (21.5 °C).
How much does it rain in Ayoun El Atrous?
Ayoun El Atrous receives on average 154 mm of precipitation per year, spread over about 26 rainy days.
Is it sunny in Ayoun El Atrous?
Ayoun El Atrous gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
Are there tropical nights in Ayoun El Atrous?
Yes: Ayoun El Atrous has on average 261 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ayoun El Atrous?
In Ayoun El Atrous, between 1940 and 2025, the highest apparent temperature reached 47.5 °C on 3 June 2021, and the lowest was 0.6 °C on 30 December 1940.
Compare Ayoun El Atrous with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ayoun El Atrous