Al-'Alūaṣ climate — normals and trends
Al-'Alūaṣ (Libya) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 19.8 °C and it receives 269 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 August (26.4 °C on average) and the coldest is January (13.7 °C). Rainfall peaks in December.
Al-'Alūaṣ averages 0 frost days, 20 hot days (≥ 30 °C) and 45 rainy days per year.
Al-'Alūaṣ has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.7 °C (on 19 August 1945) and the coldest 5.5 °C (on 10 January 1981).
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
Al-'AlūaṣAl Marqab
- coords
- 32.71°, 13.97°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.8°C
Average daily high
21.9°C
Average daily low
18.0°C
Annual rainfall
269mm
Sunshine / day
11.1h
Mean relative humidity
71%
Average peak wind
25.8km/h
Seasonal range
12.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
45 d/yr
Annual snowfall
0.0 cm
Average feels-like high
21.8 °C
Average feels-like low
16.7 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
144 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.56 · 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
40.7 °C
19 August 1945
Coldest day
5.5 °C
10 January 1981
Wettest day
105 mm
21 December 2017
Windiest day
78.8 km/h
8 December 1988
Strongest gust
123.5 km/h
8 December 1988
Hottest feels-like
41.6 °C
25 July 2023
Coldest feels-like
-3.7 °C
8 January 1981
Snowiest day
0.1 cm
18 February 1979
Sunniest day
14.0 h
6 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 | 17.6 °C | +1.9 °C | 21 mm | -31 mm |
| Feb | 17.2 °C | +1.0 °C | 11 mm | -24 mm |
| Mar | 21.2 °C | +3.6 °C | 29 mm | +4 mm |
| Apr | 20.6 °C | +0.9 °C | 15 mm | +4 mm |
| May | 23.5 °C | +1.3 °C | 5 mm | -0 mm |
| Jun | 26.3 °C | +1.1 °C | 0 mm | -1 mm |
| Jul | 29.4 °C | +2.0 °C | 0 mm | -0 mm |
| Aug | 29.4 °C | +0.9 °C | 0 mm | -1 mm |
| Sep | 28.4 °C | +0.9 °C | 4 mm | -8 mm |
| Oct | 25.9 °C | +1.1 °C | 12 mm | -23 mm |
| Nov | 22.3 °C | +1.3 °C | 6 mm | -33 mm |
| Dec | 18.3 °C | +1.2 °C | 49 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 Al-'Alūaṣ?
Al-'Alūaṣ has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 19.8 °C and it receives 269 mm of precipitation per year.
What is the hottest day ever recorded in Al-'Alūaṣ?
The hottest day measured in Al-'Alūaṣ between 1940 and 2025 was 19 August 1945, reaching 40.7 °C.
What is the coldest day in Al-'Alūaṣ?
The coldest day measured in Al-'Alūaṣ between 1940 and 2025 was 10 January 1981, at 5.5 °C.
Does it snow in Al-'Alūaṣ?
Almost never: Al-'Alūaṣ sees virtually no snow, with about 0 frost days per year.
Has the climate of Al-'Alūaṣ warmed?
Yes: Al-'Alūaṣ warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Al-'Alūaṣ?
The wettest day measured in Al-'Alūaṣ between 1940 and 2025 was 21 December 2017, with 105 mm of rain in 24 hours.
What was the windiest day in Al-'Alūaṣ?
The windiest day measured in Al-'Alūaṣ between 1940 and 2025 was 8 December 1988, with winds reaching 78.8 km/h.
What is the warmest month in Al-'Alūaṣ?
The warmest month in Al-'Alūaṣ is August (26.4 °C on average); the coldest is January (13.7 °C).
How much does it rain in Al-'Alūaṣ?
Al-'Alūaṣ receives on average 269 mm of precipitation per year, spread over about 45 rainy days.
Is it sunny in Al-'Alūaṣ?
Al-'Alūaṣ gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
What is the biggest single-day snowfall in Al-'Alūaṣ?
The heaviest 24-hour snowfall measured in Al-'Alūaṣ between 1940 and 2025 was 18 February 1979, with 0.1 cm.
Are there tropical nights in Al-'Alūaṣ?
Yes: Al-'Alūaṣ has on average 144 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Al-'Alūaṣ?
In Al-'Alūaṣ, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 25 July 2023, and the lowest was -3.7 °C on 8 January 1981.
Compare Al-'Alūaṣ with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Al-'Alūaṣ