Zahle climate — normals and trends
Zahle (Lebanon) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 13.5 °C and it receives 433 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 (23.0 °C on average) and the coldest is January (3.3 °C). Rainfall peaks in January.
Zahle averages 50 frost days, 44 hot days (≥ 30 °C) and 68 rainy days per year.
Zahle has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 62 to 38 per year over the period.
The hottest day of the period reached 38.6 °C (on 7 August 1987) and the coldest -20.1 °C (on 7 February 1950).
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
ZahleBekaa
- coords
- 33.85°, 35.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.5°C
Average daily high
19.5°C
Average daily low
7.7°C
Annual rainfall
433mm
Sunshine / day
10.9h
Mean relative humidity
61%
Average peak wind
10.6km/h
Seasonal range
19.7°C
Frost days (< 0 °C)
50 d/yr
Hot days (≥ 30 °C)
44 d/yr
Rainy days (≥ 1 mm)
68 d/yr
Annual snowfall
52.6 cm
Average feels-like high
18.3 °C
Average feels-like low
5.7 °C
Average peak gust
33.5 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
20.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.42 · 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
38.6 °C
7 August 1987
Coldest day
-20.1 °C
7 February 1950
Wettest day
61 mm
18 December 1951
Windiest day
31.9 km/h
8 May 1957
Strongest gust
105.1 km/h
20 February 2001
Hottest feels-like
39.7 °C
7 August 1987
Coldest feels-like
-24.3 °C
7 February 1950
Snowiest day
33.5 cm
14 January 1968
Sunniest day
13.7 h
2 July 1949
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 | 12.2 °C | +4.1 °C | 10 mm | -79 mm |
| Feb | 8.1 °C | -1.1 °C | 70 mm | -12 mm |
| Mar | 16.9 °C | +4.4 °C | 36 mm | -38 mm |
| Apr | 19.5 °C | +2.0 °C | 37 mm | -2 mm |
| May | 25.7 °C | +3.1 °C | 18 mm | -0 mm |
| Jun | 29.9 °C | +2.9 °C | 1 mm | -2 mm |
| Jul | 31.6 °C | +1.8 °C | 0 mm | -0 mm |
| Aug | 32.2 °C | +2.0 °C | 5 mm | +4 mm |
| Sep | 28.5 °C | +0.8 °C | 2 mm | -1 mm |
| Oct | 23.6 °C | +0.9 °C | 6 mm | -11 mm |
| Nov | 20.2 °C | +4.0 °C | 29 mm | -9 mm |
| Dec | 11.3 °C | +0.7 °C | 73 mm | +3 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 Zahle?
Zahle has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 13.5 °C and it receives 433 mm of precipitation per year.
What is the hottest day ever recorded in Zahle?
The hottest day measured in Zahle between 1940 and 2025 was 7 August 1987, reaching 38.6 °C.
What is the coldest day in Zahle?
The coldest day measured in Zahle between 1940 and 2025 was 7 February 1950, at -20.1 °C.
Does it snow in Zahle?
Yes. Zahle gets on average 52.6 cm of snow per year and has around 50 frost days.
Has the climate of Zahle warmed?
Yes: Zahle warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zahle?
The wettest day measured in Zahle between 1940 and 2025 was 18 December 1951, with 61 mm of rain in 24 hours.
What was the windiest day in Zahle?
The windiest day measured in Zahle between 1940 and 2025 was 8 May 1957, with winds reaching 31.9 km/h.
What is the warmest month in Zahle?
The warmest month in Zahle is August (23.0 °C on average); the coldest is January (3.3 °C).
How much does it rain in Zahle?
Zahle receives on average 433 mm of precipitation per year, spread over about 68 rainy days.
Is it sunny in Zahle?
Zahle gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zahle?
The heaviest 24-hour snowfall measured in Zahle between 1940 and 2025 was 14 January 1968, with 33.5 cm.
Are there tropical nights in Zahle?
Yes: Zahle has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zahle?
In Zahle, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 7 August 1987, and the lowest was -24.3 °C on 7 February 1950.
Compare Zahle with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zahle