Aleppo climate — normals and trends
Aleppo (Syria) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 18.0 °C and it receives 313 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 (28.6 °C on average) and the coldest is January (6.6 °C). Rainfall peaks in January.
Aleppo averages 14 frost days, 136 hot days (≥ 30 °C) and 61 rainy days per year.
Aleppo has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 19 to 9 per year over the period.
The hottest day of the period reached 45.9 °C (on 14 August 2023) and the coldest -11.3 °C (on 18 January 1973).
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
AleppoAleppo Governorate
- coords
- 36.20°, 37.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.0°C
Average daily high
24.1°C
Average daily low
12.7°C
Annual rainfall
313mm
Sunshine / day
10.6h
Mean relative humidity
60%
Average peak wind
20.0km/h
Seasonal range
22.0°C
Frost days (< 0 °C)
14 d/yr
Hot days (≥ 30 °C)
136 d/yr
Rainy days (≥ 1 mm)
61 d/yr
Annual snowfall
4.3 cm
Average feels-like high
22.2 °C
Average feels-like low
11.0 °C
Average peak gust
36.9 km/h
Tropical nights (≥ 20 °C)
80 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.47 · 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
45.9 °C
14 August 2023
Coldest day
-11.3 °C
18 January 1973
Wettest day
49 mm
18 April 1975
Windiest day
52.9 km/h
18 February 1970
Strongest gust
92.2 km/h
13 January 1968
Hottest feels-like
48.4 °C
22 July 1998
Coldest feels-like
-15.9 °C
18 January 1973
Snowiest day
16.5 cm
8 January 1979
Sunniest day
14.0 h
24 June 1942
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 | 15.5 °C | +4.8 °C | 3 mm | -55 mm |
| Feb | 12.2 °C | -0.6 °C | 44 mm | -5 mm |
| Mar | 22.7 °C | +5.7 °C | 20 mm | -27 mm |
| Apr | 23.8 °C | +1.0 °C | 29 mm | +0 mm |
| May | 31.2 °C | +2.5 °C | 13 mm | -5 mm |
| Jun | 35.7 °C | +2.2 °C | 1 mm | -2 mm |
| Jul | 37.6 °C | +1.4 °C | 1 mm | 0 mm |
| Aug | 37.5 °C | +1.2 °C | 0 mm | -1 mm |
| Sep | 33.5 °C | +0.5 °C | 2 mm | -1 mm |
| Oct | 27.4 °C | +0.5 °C | 11 mm | -7 mm |
| Nov | 23.2 °C | +4.2 °C | 8 mm | -25 mm |
| Dec | 14.7 °C | +2.2 °C | 50 mm | -5 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 Aleppo?
Aleppo has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 18.0 °C and it receives 313 mm of precipitation per year.
What is the hottest day ever recorded in Aleppo?
The hottest day measured in Aleppo between 1940 and 2025 was 14 August 2023, reaching 45.9 °C.
What is the coldest day in Aleppo?
The coldest day measured in Aleppo between 1940 and 2025 was 18 January 1973, at -11.3 °C.
Does it snow in Aleppo?
Yes. Aleppo gets on average 4.3 cm of snow per year and has around 14 frost days.
Has the climate of Aleppo warmed?
Yes: Aleppo warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aleppo?
The wettest day measured in Aleppo between 1940 and 2025 was 18 April 1975, with 49 mm of rain in 24 hours.
What was the windiest day in Aleppo?
The windiest day measured in Aleppo between 1940 and 2025 was 18 February 1970, with winds reaching 52.9 km/h.
What is the warmest month in Aleppo?
The warmest month in Aleppo is July (28.6 °C on average); the coldest is January (6.6 °C).
How much does it rain in Aleppo?
Aleppo receives on average 313 mm of precipitation per year, spread over about 61 rainy days.
Is it sunny in Aleppo?
Aleppo gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aleppo?
The heaviest 24-hour snowfall measured in Aleppo between 1940 and 2025 was 8 January 1979, with 16.5 cm.
Are there tropical nights in Aleppo?
Yes: Aleppo has on average 80 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aleppo?
In Aleppo, between 1940 and 2025, the highest apparent temperature reached 48.4 °C on 22 July 1998, and the lowest was -15.9 °C on 18 January 1973.
Compare Aleppo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aleppo