Tamanghasset climate — normals and trends
Tamanghasset (Algeria) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 22.4 °C and it receives 28 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 June (29.7 °C on average) and the coldest is January (12.7 °C). Rainfall peaks in August.
Tamanghasset averages 1 frost days, 179 hot days (≥ 30 °C) and 7 rainy days per year.
Tamanghasset 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 2 to 0 per year over the period.
The hottest day of the period reached 40.4 °C (on 29 July 2018) and the coldest -4.2 °C (on 4 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
TamanghassetTamanrasset Province
- coords
- 22.79°, 5.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.4°C
Average daily high
28.5°C
Average daily low
16.0°C
Annual rainfall
28mm
Sunshine / day
11.4h
Mean relative humidity
20%
Average peak wind
23.0km/h
Seasonal range
17.0°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
179 d/yr
Rainy days (≥ 1 mm)
7 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.2 °C
Average feels-like low
11.4 °C
Average peak gust
39.9 km/h
Tropical nights (≥ 20 °C)
140 d/yr
Solar radiation
23.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.79 · 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
40.4 °C
29 July 2018
Coldest day
-4.2 °C
4 January 1945
Wettest day
35 mm
15 August 1961
Windiest day
51.8 km/h
19 April 2004
Strongest gust
82.1 km/h
19 April 2004
Hottest feels-like
39.3 °C
19 June 2019
Coldest feels-like
-10.4 °C
5 January 1945
Sunniest day
13.0 h
11 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 | 22.1 °C | +2.4 °C | 1 mm | -1 mm |
| Feb | 22.9 °C | +0.7 °C | 2 mm | +1 mm |
| Mar | 29.8 °C | +4.3 °C | 2 mm | -0 mm |
| Apr | 32.1 °C | +2.2 °C | 0 mm | -1 mm |
| May | 35.6 °C | +2.3 °C | 1 mm | -1 mm |
| Jun | 35.0 °C | -0.2 °C | 5 mm | +2 mm |
| Jul | 36.6 °C | +1.6 °C | 1 mm | -2 mm |
| Aug | 35.7 °C | +1.4 °C | 5 mm | -2 mm |
| Sep | 34.3 °C | +1.5 °C | 2 mm | -1 mm |
| Oct | 31.4 °C | +2.1 °C | 0 mm | -2 mm |
| Nov | 26.5 °C | +2.1 °C | 0 mm | -1 mm |
| Dec | 21.3 °C | +0.8 °C | 2 mm | +0 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 Tamanghasset?
Tamanghasset has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 22.4 °C and it receives 28 mm of precipitation per year.
What is the hottest day ever recorded in Tamanghasset?
The hottest day measured in Tamanghasset between 1940 and 2025 was 29 July 2018, reaching 40.4 °C.
What is the coldest day in Tamanghasset?
The coldest day measured in Tamanghasset between 1940 and 2025 was 4 January 1945, at -4.2 °C.
Does it snow in Tamanghasset?
Almost never: Tamanghasset sees virtually no snow, with about 1 frost days per year.
Has the climate of Tamanghasset warmed?
Yes: Tamanghasset warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tamanghasset?
The wettest day measured in Tamanghasset between 1940 and 2025 was 15 August 1961, with 35 mm of rain in 24 hours.
What was the windiest day in Tamanghasset?
The windiest day measured in Tamanghasset between 1940 and 2025 was 19 April 2004, with winds reaching 51.8 km/h.
What is the warmest month in Tamanghasset?
The warmest month in Tamanghasset is June (29.7 °C on average); the coldest is January (12.7 °C).
How much does it rain in Tamanghasset?
Tamanghasset receives on average 28 mm of precipitation per year, spread over about 7 rainy days.
Is it sunny in Tamanghasset?
Tamanghasset gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.
Are there tropical nights in Tamanghasset?
Yes: Tamanghasset has on average 140 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tamanghasset?
In Tamanghasset, between 1940 and 2025, the highest apparent temperature reached 39.3 °C on 19 June 2019, and the lowest was -10.4 °C on 5 January 1945.
Compare Tamanghasset with another city
Pick a second city: its normals will be set against these, indicator by indicator.