Aarsâl climate — normals and trends
Aarsâl (Lebanon) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 13.3 °C and it receives 301 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 (23.4 °C on average) and the coldest is January (2.7 °C). Rainfall peaks in January.
Aarsâl averages 45 frost days, 33 hot days (≥ 30 °C) and 66 rainy days per year.
Aarsâl has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 57 to 33 per year over the period.
The hottest day of the period reached 37.7 °C (on 7 August 1987) and the coldest -18.4 °C (on 9 February 1949).
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
AarsâlBaalbek-Hermel Governorate
- coords
- 34.18°, 36.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.3°C
Average daily high
18.7°C
Average daily low
8.5°C
Annual rainfall
301mm
Sunshine / day
11.1h
Mean relative humidity
55%
Average peak wind
11.6km/h
Seasonal range
20.7°C
Frost days (< 0 °C)
45 d/yr
Hot days (≥ 30 °C)
33 d/yr
Rainy days (≥ 1 mm)
66 d/yr
Annual snowfall
44.0 cm
Average feels-like high
16.9 °C
Average feels-like low
5.8 °C
Average peak gust
32.5 km/h
Tropical nights (≥ 20 °C)
10 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.40 · 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
37.7 °C
7 August 1987
Coldest day
-18.4 °C
9 February 1949
Wettest day
35 mm
20 December 2002
Windiest day
39.2 km/h
14 April 1941
Strongest gust
104.8 km/h
22 March 2021
Hottest feels-like
38.8 °C
7 August 1987
Coldest feels-like
-23.3 °C
9 February 1949
Snowiest day
17.7 cm
18 December 1951
Sunniest day
13.7 h
4 July 1941
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 | 10.5 °C | +3.5 °C | 23 mm | -26 mm |
| Feb | 6.4 °C | -1.7 °C | 44 mm | +2 mm |
| Mar | 15.0 °C | +3.4 °C | 39 mm | -7 mm |
| Apr | 18.5 °C | +1.6 °C | 35 mm | +1 mm |
| May | 24.8 °C | +2.6 °C | 27 mm | -3 mm |
| Jun | 28.5 °C | +1.7 °C | 4 mm | -1 mm |
| Jul | 30.7 °C | +1.2 °C | 0 mm | -0 mm |
| Aug | 31.6 °C | +2.0 °C | 2 mm | +1 mm |
| Sep | 27.8 °C | +1.0 °C | 2 mm | -2 mm |
| Oct | 23.2 °C | +1.8 °C | 4 mm | -18 mm |
| Nov | 18.9 °C | +4.0 °C | 26 mm | -3 mm |
| Dec | 9.7 °C | +0.2 °C | 63 mm | +21 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 Aarsâl?
Aarsâl has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 13.3 °C and it receives 301 mm of precipitation per year.
What is the hottest day ever recorded in Aarsâl?
The hottest day measured in Aarsâl between 1940 and 2025 was 7 August 1987, reaching 37.7 °C.
What is the coldest day in Aarsâl?
The coldest day measured in Aarsâl between 1940 and 2025 was 9 February 1949, at -18.4 °C.
Does it snow in Aarsâl?
Yes. Aarsâl gets on average 44.0 cm of snow per year and has around 45 frost days.
Has the climate of Aarsâl warmed?
Yes: Aarsâl warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aarsâl?
The wettest day measured in Aarsâl between 1940 and 2025 was 20 December 2002, with 35 mm of rain in 24 hours.
What was the windiest day in Aarsâl?
The windiest day measured in Aarsâl between 1940 and 2025 was 14 April 1941, with winds reaching 39.2 km/h.
What is the warmest month in Aarsâl?
The warmest month in Aarsâl is July (23.4 °C on average); the coldest is January (2.7 °C).
How much does it rain in Aarsâl?
Aarsâl receives on average 301 mm of precipitation per year, spread over about 66 rainy days.
Is it sunny in Aarsâl?
Aarsâl 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 Aarsâl?
The heaviest 24-hour snowfall measured in Aarsâl between 1940 and 2025 was 18 December 1951, with 17.7 cm.
Are there tropical nights in Aarsâl?
Yes: Aarsâl has on average 10 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aarsâl?
In Aarsâl, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 7 August 1987, and the lowest was -23.3 °C on 9 February 1949.
Compare Aarsâl with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aarsâl