’Aïn el Bell climate — normals and trends
’Aïn el Bell (Algeria) has a cold desert climate (BWk) under the Köppen-Geiger classification. Its mean annual temperature is 17.0 °C and it receives 187 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 (29.4 °C on average) and the coldest is January (6.6 °C). Rainfall peaks in October.
’Aïn el Bell averages 15 frost days, 102 hot days (≥ 30 °C) and 41 rainy days per year.
’Aïn el Bell has warmed by +2.8 °C between 1940 and 2025, or +0.33 °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 43.2 °C (on 10 July 2024) and the coldest -7.9 °C (on 18 December 1960).
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 el BellDjelfa Province
- coords
- 34.34°, 3.22°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.0°C
Average daily high
22.6°C
Average daily low
11.5°C
Annual rainfall
187mm
Sunshine / day
11.0h
Mean relative humidity
49%
Average peak wind
20.8km/h
Seasonal range
22.8°C
Frost days (< 0 °C)
15 d/yr
Hot days (≥ 30 °C)
102 d/yr
Rainy days (≥ 1 mm)
41 d/yr
Annual snowfall
4.2 cm
Average feels-like high
19.8 °C
Average feels-like low
8.2 °C
Average peak gust
37.7 km/h
Tropical nights (≥ 20 °C)
73 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
43.2 °C
10 July 2024
Coldest day
-7.9 °C
18 December 1960
Wettest day
54 mm
8 September 2015
Windiest day
63.2 km/h
8 March 2007
Strongest gust
110.5 km/h
8 March 2007
Hottest feels-like
42.7 °C
1 August 2024
Coldest feels-like
-13.5 °C
2 February 1954
Snowiest day
15.8 cm
5 January 1965
Sunniest day
14.0 h
20 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 | +1.3 °C | 26 mm | +11 mm |
| Feb | 15.0 °C | +1.4 °C | 7 mm | -6 mm |
| Mar | 18.3 °C | +1.2 °C | 12 mm | -6 mm |
| Apr | 23.2 °C | +2.3 °C | 30 mm | +10 mm |
| May | 27.2 °C | +1.2 °C | 53 mm | +34 mm |
| Jun | 34.8 °C | +3.0 °C | 5 mm | -6 mm |
| Jul | 36.8 °C | +1.2 °C | 6 mm | +1 mm |
| Aug | 35.8 °C | +1.1 °C | 7 mm | -2 mm |
| Sep | 30.2 °C | +1.0 °C | 29 mm | +7 mm |
| Oct | 24.4 °C | +1.9 °C | 21 mm | -2 mm |
| Nov | 18.0 °C | +1.6 °C | 1 mm | -14 mm |
| Dec | 12.1 °C | -0.1 °C | 45 mm | +29 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 el Bell?
’Aïn el Bell has a cold desert climate (Köppen BWk). Over 1940-2025, the average annual temperature is 17.0 °C and it receives 187 mm of precipitation per year.
What is the hottest day ever recorded in ’Aïn el Bell?
The hottest day measured in ’Aïn el Bell between 1940 and 2025 was 10 July 2024, reaching 43.2 °C.
What is the coldest day in ’Aïn el Bell?
The coldest day measured in ’Aïn el Bell between 1940 and 2025 was 18 December 1960, at -7.9 °C.
Does it snow in ’Aïn el Bell?
Yes. ’Aïn el Bell gets on average 4.2 cm of snow per year and has around 15 frost days.
Has the climate of ’Aïn el Bell warmed?
Yes: ’Aïn el Bell warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in ’Aïn el Bell?
The wettest day measured in ’Aïn el Bell between 1940 and 2025 was 8 September 2015, with 54 mm of rain in 24 hours.
What was the windiest day in ’Aïn el Bell?
The windiest day measured in ’Aïn el Bell between 1940 and 2025 was 8 March 2007, with winds reaching 63.2 km/h.
What is the warmest month in ’Aïn el Bell?
The warmest month in ’Aïn el Bell is July (29.4 °C on average); the coldest is January (6.6 °C).
How much does it rain in ’Aïn el Bell?
’Aïn el Bell receives on average 187 mm of precipitation per year, spread over about 41 rainy days.
Is it sunny in ’Aïn el Bell?
’Aïn el Bell gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
What is the biggest single-day snowfall in ’Aïn el Bell?
The heaviest 24-hour snowfall measured in ’Aïn el Bell between 1940 and 2025 was 5 January 1965, with 15.8 cm.
Are there tropical nights in ’Aïn el Bell?
Yes: ’Aïn el Bell has on average 73 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in ’Aïn el Bell?
In ’Aïn el Bell, between 1940 and 2025, the highest apparent temperature reached 42.7 °C on 1 August 2024, and the lowest was -13.5 °C on 2 February 1954.
Compare ’Aïn el Bell with another city
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Nearby cities
The climate around ’Aïn el Bell