Merouana climate — normals and trends
Merouana (Algeria) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 14.2 °C and it receives 386 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 July (25.2 °C on average) and the coldest is January (5.1 °C). Rainfall peaks in April.
Merouana averages 32 frost days, 67 hot days (≥ 30 °C) and 82 rainy days per year.
Merouana has warmed by +3.1 °C between 1940 and 2025, or +0.36 °C per decade. This trend is statistically significant.
The number of frost days there went from about 49 to 15 per year over the period.
The hottest day of the period reached 40.8 °C (on 29 July 2023) and the coldest -11.6 °C (on 30 December 1940).
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
MerouanaBatna
- coords
- 35.63°, 5.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.2°C
Average daily high
20.2°C
Average daily low
8.8°C
Annual rainfall
386mm
Sunshine / day
10.6h
Mean relative humidity
62%
Average peak wind
14.0km/h
Seasonal range
20.1°C
Frost days (< 0 °C)
32 d/yr
Hot days (≥ 30 °C)
67 d/yr
Rainy days (≥ 1 mm)
82 d/yr
Annual snowfall
18.9 cm
Average feels-like high
18.4 °C
Average feels-like low
6.9 °C
Average peak gust
37.0 km/h
Tropical nights (≥ 20 °C)
18 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.1 °C
since 1940
+0.4 °C per decade · r² = 0.72 · 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
40.8 °C
29 July 2023
Coldest day
-11.6 °C
30 December 1940
Wettest day
66 mm
25 May 2000
Windiest day
38.8 km/h
7 March 1991
Strongest gust
98.3 km/h
31 January 2015
Hottest feels-like
40.8 °C
26 July 2005
Coldest feels-like
-15.7 °C
30 December 1940
Snowiest day
20.7 cm
7 March 1985
Sunniest day
13.9 h
3 July 1942
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 | 11.8 °C | +1.9 °C | 53 mm | +18 mm |
| Feb | 13.3 °C | +1.9 °C | 22 mm | -11 mm |
| Mar | 17.0 °C | +2.6 °C | 31 mm | -13 mm |
| Apr | 20.3 °C | +2.3 °C | 58 mm | +12 mm |
| May | 24.3 °C | +1.4 °C | 66 mm | +21 mm |
| Jun | 32.2 °C | +3.7 °C | 5 mm | -20 mm |
| Jul | 33.7 °C | +1.4 °C | 10 mm | -1 mm |
| Aug | 32.9 °C | +1.1 °C | 18 mm | +0 mm |
| Sep | 28.5 °C | +1.8 °C | 46 mm | +12 mm |
| Oct | 22.3 °C | +1.5 °C | 16 mm | -15 mm |
| Nov | 15.7 °C | +0.9 °C | 14 mm | -17 mm |
| Dec | 11.8 °C | +1.2 °C | 35 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 Merouana?
Merouana has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 14.2 °C and it receives 386 mm of precipitation per year.
What is the hottest day ever recorded in Merouana?
The hottest day measured in Merouana between 1940 and 2025 was 29 July 2023, reaching 40.8 °C.
What is the coldest day in Merouana?
The coldest day measured in Merouana between 1940 and 2025 was 30 December 1940, at -11.6 °C.
Does it snow in Merouana?
Yes. Merouana gets on average 18.9 cm of snow per year and has around 32 frost days.
Has the climate of Merouana warmed?
Yes: Merouana warmed by +3.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Merouana?
The wettest day measured in Merouana between 1940 and 2025 was 25 May 2000, with 66 mm of rain in 24 hours.
What was the windiest day in Merouana?
The windiest day measured in Merouana between 1940 and 2025 was 7 March 1991, with winds reaching 38.8 km/h.
What is the warmest month in Merouana?
The warmest month in Merouana is July (25.2 °C on average); the coldest is January (5.1 °C).
How much does it rain in Merouana?
Merouana receives on average 386 mm of precipitation per year, spread over about 82 rainy days.
Is it sunny in Merouana?
Merouana 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 Merouana?
The heaviest 24-hour snowfall measured in Merouana between 1940 and 2025 was 7 March 1985, with 20.7 cm.
Are there tropical nights in Merouana?
Yes: Merouana has on average 18 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Merouana?
In Merouana, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 26 July 2005, and the lowest was -15.7 °C on 30 December 1940.
Compare Merouana with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Merouana