’Aïn Merane climate — normals and trends
’Aïn Merane (Algeria) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 18.0 °C and it receives 463 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 (26.9 °C on average) and the coldest is January (10.6 °C). Rainfall peaks in December.
’Aïn Merane averages 0 frost days, 67 hot days (≥ 30 °C) and 75 rainy days per year.
’Aïn Merane has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.3 °C (on 17 August 2012) and the coldest -2.5 °C (on 27 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
’Aïn MeraneChlef Province
- coords
- 36.16°, 0.97°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.0°C
Average daily high
22.2°C
Average daily low
13.9°C
Annual rainfall
463mm
Sunshine / day
10.6h
Mean relative humidity
70%
Average peak wind
15.2km/h
Seasonal range
16.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
67 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
0.4 cm
Average feels-like high
22.0 °C
Average feels-like low
13.3 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
74 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.54 · 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
42.3 °C
17 August 2012
Coldest day
-2.5 °C
27 January 2005
Wettest day
69 mm
21 April 1946
Windiest day
47.1 km/h
28 January 1951
Strongest gust
120.6 km/h
31 January 2015
Hottest feels-like
44.2 °C
1 August 2001
Coldest feels-like
-5.9 °C
27 January 2005
Snowiest day
10.5 cm
21 December 1979
Sunniest day
14.0 h
23 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 | 16.0 °C | +1.8 °C | 59 mm | -5 mm |
| Feb | 17.4 °C | +2.3 °C | 48 mm | -8 mm |
| Mar | 19.4 °C | +2.2 °C | 60 mm | +9 mm |
| Apr | 22.5 °C | +3.1 °C | 38 mm | -13 mm |
| May | 25.5 °C | +2.3 °C | 46 mm | +10 mm |
| Jun | 32.7 °C | +5.0 °C | 0 mm | -10 mm |
| Jul | 33.0 °C | +1.4 °C | 1 mm | -0 mm |
| Aug | 33.6 °C | +1.6 °C | 0 mm | -4 mm |
| Sep | 30.1 °C | +1.6 °C | 12 mm | -9 mm |
| Oct | 26.4 °C | +2.6 °C | 16 mm | -27 mm |
| Nov | 20.5 °C | +1.9 °C | 28 mm | -34 mm |
| Dec | 16.2 °C | +1.0 °C | 116 mm | +52 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 ’Aïn Merane?
’Aïn Merane has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 18.0 °C and it receives 463 mm of precipitation per year.
What is the hottest day ever recorded in ’Aïn Merane?
The hottest day measured in ’Aïn Merane between 1940 and 2025 was 17 August 2012, reaching 42.3 °C.
What is the coldest day in ’Aïn Merane?
The coldest day measured in ’Aïn Merane between 1940 and 2025 was 27 January 2005, at -2.5 °C.
Does it snow in ’Aïn Merane?
Almost never: ’Aïn Merane sees virtually no snow, with about 0 frost days per year.
Has the climate of ’Aïn Merane warmed?
Yes: ’Aïn Merane warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in ’Aïn Merane?
The wettest day measured in ’Aïn Merane between 1940 and 2025 was 21 April 1946, with 69 mm of rain in 24 hours.
What was the windiest day in ’Aïn Merane?
The windiest day measured in ’Aïn Merane between 1940 and 2025 was 28 January 1951, with winds reaching 47.1 km/h.
What is the warmest month in ’Aïn Merane?
The warmest month in ’Aïn Merane is August (26.9 °C on average); the coldest is January (10.6 °C).
How much does it rain in ’Aïn Merane?
’Aïn Merane receives on average 463 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in ’Aïn Merane?
’Aïn Merane gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in ’Aïn Merane?
The heaviest 24-hour snowfall measured in ’Aïn Merane between 1940 and 2025 was 21 December 1979, with 10.5 cm.
Are there tropical nights in ’Aïn Merane?
Yes: ’Aïn Merane has on average 74 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in ’Aïn Merane?
In ’Aïn Merane, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 1 August 2001, and the lowest was -5.9 °C on 27 January 2005.
Compare ’Aïn Merane with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around ’Aïn Merane