Mers El Kheir climate — normals and trends
Mers El Kheir (Morocco) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.8 °C and it receives 416 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 August (23.7 °C on average) and the coldest is January (12.1 °C). Rainfall peaks in December.
Mers El Kheir averages 0 frost days, 38 hot days (≥ 30 °C) and 63 rainy days per year.
Mers El Kheir has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 45.2 °C (on 11 July 2006) and the coldest -3.0 °C (on 28 January 2005).
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
Mers El KheirRabat-Salé-Kénitra
- coords
- 33.86°, -6.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.8°C
Average daily high
23.1°C
Average daily low
13.2°C
Annual rainfall
416mm
Sunshine / day
10.9h
Mean relative humidity
74%
Average peak wind
14.4km/h
Seasonal range
11.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
38 d/yr
Rainy days (≥ 1 mm)
63 d/yr
Annual snowfall
0.0 cm
Average feels-like high
23.3 °C
Average feels-like low
12.8 °C
Average peak gust
34.4 km/h
Tropical nights (≥ 20 °C)
19 d/yr
Solar radiation
19.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
45.2 °C
11 July 2006
Coldest day
-3.0 °C
28 January 2005
Wettest day
67 mm
30 November 2010
Windiest day
46.6 km/h
23 December 2009
Strongest gust
110.9 km/h
6 November 1997
Hottest feels-like
47.8 °C
31 July 2000
Coldest feels-like
-6.6 °C
28 January 2005
Sunniest day
13.7 h
18 June 1950
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 | 19.5 °C | +2.6 °C | 43 mm | -15 mm |
| Feb | 19.6 °C | +1.6 °C | 25 mm | -32 mm |
| Mar | 19.4 °C | -0.6 °C | 131 mm | +74 mm |
| Apr | 22.8 °C | +1.5 °C | 60 mm | +18 mm |
| May | 25.4 °C | +1.5 °C | 16 mm | -6 mm |
| Jun | 29.8 °C | +3.3 °C | 2 mm | -5 mm |
| Jul | 29.8 °C | +0.6 °C | 0 mm | -1 mm |
| Aug | 31.6 °C | +2.1 °C | 1 mm | -1 mm |
| Sep | 28.9 °C | +1.2 °C | 2 mm | -9 mm |
| Oct | 26.5 °C | +1.5 °C | 5 mm | -32 mm |
| Nov | 21.8 °C | +0.9 °C | 54 mm | -6 mm |
| Dec | 16.8 °C | -1.0 °C | 161 mm | +96 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 Mers El Kheir?
Mers El Kheir has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.8 °C and it receives 416 mm of precipitation per year.
What is the hottest day ever recorded in Mers El Kheir?
The hottest day measured in Mers El Kheir between 1940 and 2025 was 11 July 2006, reaching 45.2 °C.
What is the coldest day in Mers El Kheir?
The coldest day measured in Mers El Kheir between 1940 and 2025 was 28 January 2005, at -3.0 °C.
Does it snow in Mers El Kheir?
Almost never: Mers El Kheir sees virtually no snow, with about 0 frost days per year.
Has the climate of Mers El Kheir warmed?
Yes: Mers El Kheir warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mers El Kheir?
The wettest day measured in Mers El Kheir between 1940 and 2025 was 30 November 2010, with 67 mm of rain in 24 hours.
What was the windiest day in Mers El Kheir?
The windiest day measured in Mers El Kheir between 1940 and 2025 was 23 December 2009, with winds reaching 46.6 km/h.
What is the warmest month in Mers El Kheir?
The warmest month in Mers El Kheir is August (23.7 °C on average); the coldest is January (12.1 °C).
How much does it rain in Mers El Kheir?
Mers El Kheir receives on average 416 mm of precipitation per year, spread over about 63 rainy days.
Is it sunny in Mers El Kheir?
Mers El Kheir gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Mers El Kheir?
Yes: Mers El Kheir has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mers El Kheir?
In Mers El Kheir, between 1940 and 2025, the highest apparent temperature reached 47.8 °C on 31 July 2000, and the lowest was -6.6 °C on 28 January 2005.
Compare Mers El Kheir with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mers El Kheir