Mansourah climate — normals and trends
Mansourah (Algeria) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 15.9 °C and it receives 318 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 (27.5 °C on average) and the coldest is January (6.1 °C). Rainfall peaks in April.
Mansourah averages 15 frost days, 93 hot days (≥ 30 °C) and 68 rainy days per year.
Mansourah has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 26 to 4 per year over the period.
The hottest day of the period reached 43.0 °C (on 28 June 2024) and the coldest -10.0 °C (on 14 January 1945).
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
MansourahBordj Bou Arréridj
- coords
- 36.09°, 4.45°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.9°C
Average daily high
21.7°C
Average daily low
10.5°C
Annual rainfall
318mm
Sunshine / day
10.5h
Mean relative humidity
61%
Average peak wind
13.7km/h
Seasonal range
21.4°C
Frost days (< 0 °C)
15 d/yr
Hot days (≥ 30 °C)
93 d/yr
Rainy days (≥ 1 mm)
68 d/yr
Annual snowfall
8.9 cm
Average feels-like high
20.0 °C
Average feels-like low
8.9 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
45 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °C per decade · r² = 0.67 · 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
43.0 °C
28 June 2024
Coldest day
-10.0 °C
14 January 1945
Wettest day
48 mm
29 March 1974
Windiest day
41.0 km/h
7 November 1962
Strongest gust
97.9 km/h
31 January 2015
Hottest feels-like
42.8 °C
18 July 2024
Coldest feels-like
-14.2 °C
14 January 1945
Snowiest day
14.6 cm
19 December 1999
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 | 12.9 °C | +2.3 °C | 33 mm | +1 mm |
| Feb | 15.2 °C | +2.8 °C | 12 mm | -17 mm |
| Mar | 18.0 °C | +2.2 °C | 21 mm | -15 mm |
| Apr | 21.7 °C | +2.2 °C | 49 mm | +10 mm |
| May | 26.0 °C | +1.2 °C | 62 mm | +29 mm |
| Jun | 35.0 °C | +4.3 °C | 5 mm | -12 mm |
| Jul | 36.3 °C | +1.4 °C | 6 mm | -0 mm |
| Aug | 35.2 °C | +1.1 °C | 6 mm | -5 mm |
| Sep | 30.4 °C | +1.9 °C | 37 mm | +9 mm |
| Oct | 24.0 °C | +1.9 °C | 15 mm | -13 mm |
| Nov | 16.4 °C | +0.8 °C | 19 mm | -10 mm |
| Dec | 12.6 °C | +1.2 °C | 41 mm | +10 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 Mansourah?
Mansourah has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 15.9 °C and it receives 318 mm of precipitation per year.
What is the hottest day ever recorded in Mansourah?
The hottest day measured in Mansourah between 1940 and 2025 was 28 June 2024, reaching 43.0 °C.
What is the coldest day in Mansourah?
The coldest day measured in Mansourah between 1940 and 2025 was 14 January 1945, at -10.0 °C.
Does it snow in Mansourah?
Yes. Mansourah gets on average 8.9 cm of snow per year and has around 15 frost days.
Has the climate of Mansourah warmed?
Yes: Mansourah warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mansourah?
The wettest day measured in Mansourah between 1940 and 2025 was 29 March 1974, with 48 mm of rain in 24 hours.
What was the windiest day in Mansourah?
The windiest day measured in Mansourah between 1940 and 2025 was 7 November 1962, with winds reaching 41.0 km/h.
What is the warmest month in Mansourah?
The warmest month in Mansourah is July (27.5 °C on average); the coldest is January (6.1 °C).
How much does it rain in Mansourah?
Mansourah receives on average 318 mm of precipitation per year, spread over about 68 rainy days.
Is it sunny in Mansourah?
Mansourah gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mansourah?
The heaviest 24-hour snowfall measured in Mansourah between 1940 and 2025 was 19 December 1999, with 14.6 cm.
Are there tropical nights in Mansourah?
Yes: Mansourah has on average 45 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mansourah?
In Mansourah, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 18 July 2024, and the lowest was -14.2 °C on 14 January 1945.
Compare Mansourah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mansourah