Tlemcen climate — normals and trends
Tlemcen (Algeria) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.0 °C and it receives 462 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 (26.1 °C on average) and the coldest is January (9.4 °C). Rainfall peaks in March.
Tlemcen averages 3 frost days, 71 hot days (≥ 30 °C) and 71 rainy days per year.
Tlemcen has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 5 to 1 per year over the period.
The hottest day of the period reached 43.7 °C (on 31 July 2001) and the coldest -6.4 °C (on 14 December 1967).
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
TlemcenTlemcen Province
- coords
- 34.88°, -1.31°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.0°C
Average daily high
22.6°C
Average daily low
11.8°C
Annual rainfall
462mm
Sunshine / day
10.9h
Mean relative humidity
66%
Average peak wind
13.6km/h
Seasonal range
16.7°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
71 d/yr
Rainy days (≥ 1 mm)
71 d/yr
Annual snowfall
3.2 cm
Average feels-like high
22.3 °C
Average feels-like low
10.5 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
37 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.60 · 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
43.7 °C
31 July 2001
Coldest day
-6.4 °C
14 December 1967
Wettest day
111 mm
13 November 2012
Windiest day
43.6 km/h
1 December 1959
Strongest gust
111.2 km/h
1 December 1959
Hottest feels-like
45.6 °C
10 July 2023
Coldest feels-like
-11.3 °C
2 February 1954
Snowiest day
30.6 cm
11 December 1967
Sunniest day
14.0 h
20 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 | 16.7 °C | +2.0 °C | 40 mm | -19 mm |
| Feb | 17.6 °C | +1.7 °C | 44 mm | -12 mm |
| Mar | 19.3 °C | +1.3 °C | 61 mm | -2 mm |
| Apr | 22.5 °C | +2.5 °C | 28 mm | -32 mm |
| May | 25.6 °C | +2.1 °C | 43 mm | +3 mm |
| Jun | 32.8 °C | +5.0 °C | 1 mm | -11 mm |
| Jul | 33.3 °C | +1.3 °C | 1 mm | -1 mm |
| Aug | 34.1 °C | +1.7 °C | 2 mm | -2 mm |
| Sep | 30.0 °C | +1.3 °C | 10 mm | -10 mm |
| Oct | 27.2 °C | +3.2 °C | 6 mm | -33 mm |
| Nov | 20.4 °C | +1.5 °C | 25 mm | -27 mm |
| Dec | 15.3 °C | -0.2 °C | 68 mm | +11 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 Tlemcen?
Tlemcen has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.0 °C and it receives 462 mm of precipitation per year.
What is the hottest day ever recorded in Tlemcen?
The hottest day measured in Tlemcen between 1940 and 2025 was 31 July 2001, reaching 43.7 °C.
What is the coldest day in Tlemcen?
The coldest day measured in Tlemcen between 1940 and 2025 was 14 December 1967, at -6.4 °C.
Does it snow in Tlemcen?
Yes. Tlemcen gets on average 3.2 cm of snow per year and has around 3 frost days.
Has the climate of Tlemcen warmed?
Yes: Tlemcen warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tlemcen?
The wettest day measured in Tlemcen between 1940 and 2025 was 13 November 2012, with 111 mm of rain in 24 hours.
What was the windiest day in Tlemcen?
The windiest day measured in Tlemcen between 1940 and 2025 was 1 December 1959, with winds reaching 43.6 km/h.
What is the warmest month in Tlemcen?
The warmest month in Tlemcen is August (26.1 °C on average); the coldest is January (9.4 °C).
How much does it rain in Tlemcen?
Tlemcen receives on average 462 mm of precipitation per year, spread over about 71 rainy days.
Is it sunny in Tlemcen?
Tlemcen gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Tlemcen?
The heaviest 24-hour snowfall measured in Tlemcen between 1940 and 2025 was 11 December 1967, with 30.6 cm.
Are there tropical nights in Tlemcen?
Yes: Tlemcen has on average 37 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tlemcen?
In Tlemcen, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 10 July 2023, and the lowest was -11.3 °C on 2 February 1954.
Compare Tlemcen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tlemcen