Ouargla climate — normals and trends
Ouargla (Algeria) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 22.5 °C and it receives 43 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 (34.5 °C on average) and the coldest is January (10.6 °C). Rainfall peaks in January.
Ouargla averages 2 frost days, 165 hot days (≥ 30 °C) and 9 rainy days per year.
Ouargla has warmed by +3.5 °C between 1940 and 2025, or +0.41 °C per decade. This trend is statistically significant.
The number of frost days there went from about 6 to 0 per year over the period.
The hottest day of the period reached 49.6 °C (on 5 July 2018) and the coldest -5.3 °C (on 16 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
OuarglaOuargla Province
- coords
- 31.95°, 5.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.5°C
Average daily high
28.5°C
Average daily low
16.2°C
Annual rainfall
43mm
Sunshine / day
11.2h
Mean relative humidity
38%
Average peak wind
21.1km/h
Seasonal range
23.9°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
165 d/yr
Rainy days (≥ 1 mm)
9 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.1 °C
Average feels-like low
13.1 °C
Average peak gust
34.0 km/h
Tropical nights (≥ 20 °C)
141 d/yr
Solar radiation
21.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.5 °C
since 1940
+0.4 °C per decade · r² = 0.80 · 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
49.6 °C
5 July 2018
Coldest day
-5.3 °C
16 December 1940
Wettest day
47 mm
21 January 1990
Windiest day
69.2 km/h
6 February 1943
Strongest gust
105.8 km/h
21 January 2009
Hottest feels-like
49.8 °C
7 July 2012
Coldest feels-like
-10.1 °C
16 December 1940
Snowiest day
2.0 cm
19 December 1999
Sunniest day
13.3 h
26 June 2025
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 | 18.7 °C | +2.2 °C | 0 mm | -7 mm |
| Feb | 20.0 °C | +0.7 °C | 2 mm | -3 mm |
| Mar | 26.5 °C | +3.4 °C | 2 mm | -5 mm |
| Apr | 29.5 °C | +1.8 °C | 1 mm | -4 mm |
| May | 33.5 °C | +0.7 °C | 2 mm | +1 mm |
| Jun | 38.9 °C | +0.8 °C | 0 mm | -0 mm |
| Jul | 42.3 °C | +1.4 °C | 0 mm | 0 mm |
| Aug | 40.9 °C | +0.7 °C | 0 mm | +0 mm |
| Sep | 36.6 °C | +1.2 °C | 0 mm | -2 mm |
| Oct | 30.9 °C | +2.2 °C | 1 mm | -4 mm |
| Nov | 23.6 °C | +1.7 °C | 0 mm | -5 mm |
| Dec | 18.2 °C | +1.1 °C | 13 mm | +7 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 Ouargla?
Ouargla has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 22.5 °C and it receives 43 mm of precipitation per year.
What is the hottest day ever recorded in Ouargla?
The hottest day measured in Ouargla between 1940 and 2025 was 5 July 2018, reaching 49.6 °C.
What is the coldest day in Ouargla?
The coldest day measured in Ouargla between 1940 and 2025 was 16 December 1940, at -5.3 °C.
Does it snow in Ouargla?
Almost never: Ouargla sees virtually no snow, with about 2 frost days per year.
Has the climate of Ouargla warmed?
Yes: Ouargla warmed by +3.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ouargla?
The wettest day measured in Ouargla between 1940 and 2025 was 21 January 1990, with 47 mm of rain in 24 hours.
What was the windiest day in Ouargla?
The windiest day measured in Ouargla between 1940 and 2025 was 6 February 1943, with winds reaching 69.2 km/h.
What is the warmest month in Ouargla?
The warmest month in Ouargla is July (34.5 °C on average); the coldest is January (10.6 °C).
How much does it rain in Ouargla?
Ouargla receives on average 43 mm of precipitation per year, spread over about 9 rainy days.
Is it sunny in Ouargla?
Ouargla gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ouargla?
The heaviest 24-hour snowfall measured in Ouargla between 1940 and 2025 was 19 December 1999, with 2.0 cm.
Are there tropical nights in Ouargla?
Yes: Ouargla has on average 141 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ouargla?
In Ouargla, between 1940 and 2025, the highest apparent temperature reached 49.8 °C on 7 July 2012, and the lowest was -10.1 °C on 16 December 1940.
Compare Ouargla with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ouargla