Bordj Zemoura climate — normals and trends
Bordj Zemoura (Algeria) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.9 °C and it receives 451 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 (25.6 °C on average) and the coldest is January (5.8 °C). Rainfall peaks in April.
Bordj Zemoura averages 24 frost days, 78 hot days (≥ 30 °C) and 88 rainy days per year.
Bordj Zemoura has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 39 to 9 per year over the period.
The hottest day of the period reached 42.0 °C (on 12 August 2021) and the coldest -15.5 °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
Bordj ZemouraBordj Bou Arréridj
- coords
- 36.27°, 4.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.9°C
Average daily high
21.1°C
Average daily low
9.3°C
Annual rainfall
451mm
Sunshine / day
10.4h
Mean relative humidity
66%
Average peak wind
12.2km/h
Seasonal range
19.8°C
Frost days (< 0 °C)
24 d/yr
Hot days (≥ 30 °C)
78 d/yr
Rainy days (≥ 1 mm)
88 d/yr
Annual snowfall
16.9 cm
Average feels-like high
19.9 °C
Average feels-like low
7.8 °C
Average peak gust
36.6 km/h
Tropical nights (≥ 20 °C)
22 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.69 · 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
42.0 °C
12 August 2021
Coldest day
-15.5 °C
30 December 1940
Wettest day
52 mm
19 January 1972
Windiest day
33.6 km/h
17 April 1962
Strongest gust
106.2 km/h
1 December 1959
Hottest feels-like
42.9 °C
24 July 2009
Coldest feels-like
-20.0 °C
30 December 1940
Snowiest day
25.9 cm
1 December 1969
Sunniest day
14.0 h
21 June 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 | 12.8 °C | +2.1 °C | 72 mm | +23 mm |
| Feb | 14.7 °C | +2.4 °C | 26 mm | -20 mm |
| Mar | 17.4 °C | +2.1 °C | 34 mm | -21 mm |
| Apr | 21.0 °C | +2.4 °C | 57 mm | +1 mm |
| May | 24.5 °C | +0.9 °C | 86 mm | +42 mm |
| Jun | 33.3 °C | +4.1 °C | 5 mm | -16 mm |
| Jul | 34.6 °C | +1.2 °C | 12 mm | +5 mm |
| Aug | 33.7 °C | +0.8 °C | 5 mm | -9 mm |
| Sep | 29.7 °C | +1.8 °C | 36 mm | +2 mm |
| Oct | 23.6 °C | +1.7 °C | 27 mm | -10 mm |
| Nov | 16.4 °C | +0.7 °C | 34 mm | -5 mm |
| Dec | 13.0 °C | +1.5 °C | 42 mm | -6 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 Bordj Zemoura?
Bordj Zemoura has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.9 °C and it receives 451 mm of precipitation per year.
What is the hottest day ever recorded in Bordj Zemoura?
The hottest day measured in Bordj Zemoura between 1940 and 2025 was 12 August 2021, reaching 42.0 °C.
What is the coldest day in Bordj Zemoura?
The coldest day measured in Bordj Zemoura between 1940 and 2025 was 30 December 1940, at -15.5 °C.
Does it snow in Bordj Zemoura?
Yes. Bordj Zemoura gets on average 16.9 cm of snow per year and has around 24 frost days.
Has the climate of Bordj Zemoura warmed?
Yes: Bordj Zemoura warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bordj Zemoura?
The wettest day measured in Bordj Zemoura between 1940 and 2025 was 19 January 1972, with 52 mm of rain in 24 hours.
What was the windiest day in Bordj Zemoura?
The windiest day measured in Bordj Zemoura between 1940 and 2025 was 17 April 1962, with winds reaching 33.6 km/h.
What is the warmest month in Bordj Zemoura?
The warmest month in Bordj Zemoura is July (25.6 °C on average); the coldest is January (5.8 °C).
How much does it rain in Bordj Zemoura?
Bordj Zemoura receives on average 451 mm of precipitation per year, spread over about 88 rainy days.
Is it sunny in Bordj Zemoura?
Bordj Zemoura gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in Bordj Zemoura?
The heaviest 24-hour snowfall measured in Bordj Zemoura between 1940 and 2025 was 1 December 1969, with 25.9 cm.
Are there tropical nights in Bordj Zemoura?
Yes: Bordj Zemoura has on average 22 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bordj Zemoura?
In Bordj Zemoura, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 24 July 2009, and the lowest was -20.0 °C on 30 December 1940.
Compare Bordj Zemoura with another city
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Nearby cities
The climate around Bordj Zemoura