Sanandaj climate — normals and trends
Sanandaj (Iran) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 427 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 (25.3 °C on average) and the coldest is January (-4.9 °C). Rainfall peaks in March.
Sanandaj averages 122 frost days, 80 hot days (≥ 30 °C) and 70 rainy days per year.
Sanandaj has warmed by +3.8 °C between 1940 and 2025, or +0.44 °C per decade. This trend is statistically significant.
The number of frost days there went from about 142 to 102 per year over the period.
The hottest day of the period reached 40.3 °C (on 27 July 2018) and the coldest -33.2 °C (on 23 January 1964).
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
SanandajKurdistan Province
- coords
- 35.31°, 47.00°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
17.4°C
Average daily low
4.0°C
Annual rainfall
427mm
Sunshine / day
10.9h
Mean relative humidity
53%
Average peak wind
12.6km/h
Seasonal range
30.2°C
Frost days (< 0 °C)
122 d/yr
Hot days (≥ 30 °C)
80 d/yr
Rainy days (≥ 1 mm)
70 d/yr
Annual snowfall
125.4 cm
Average feels-like high
14.9 °C
Average feels-like low
0.9 °C
Average peak gust
36.3 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.8 °C
since 1940
+0.4 °C per decade · r² = 0.54 · 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
40.3 °C
27 July 2018
Coldest day
-33.2 °C
23 January 1964
Wettest day
67 mm
3 February 2006
Windiest day
35.3 km/h
30 March 2009
Strongest gust
108.0 km/h
25 November 1992
Hottest feels-like
39.2 °C
12 July 2010
Coldest feels-like
-38.2 °C
23 January 1964
Snowiest day
36.3 cm
19 February 1953
Sunniest day
14.0 h
1 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 | 6.1 °C | +6.2 °C | 13 mm | -47 mm |
| Feb | 3.1 °C | +1.3 °C | 43 mm | -23 mm |
| Mar | 13.7 °C | +5.8 °C | 66 mm | -15 mm |
| Apr | 19.1 °C | +3.6 °C | 52 mm | -13 mm |
| May | 26.9 °C | +5.1 °C | 10 mm | -20 mm |
| Jun | 31.4 °C | +2.3 °C | 0 mm | -2 mm |
| Jul | 35.1 °C | +1.4 °C | 0 mm | 0 mm |
| Aug | 36.9 °C | +3.6 °C | 0 mm | -0 mm |
| Sep | 29.4 °C | +0.8 °C | 0 mm | -1 mm |
| Oct | 24.4 °C | +3.4 °C | 0 mm | -20 mm |
| Nov | 17.2 °C | +5.0 °C | 16 mm | -29 mm |
| Dec | 7.0 °C | +2.7 °C | 101 mm | +45 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 Sanandaj?
Sanandaj has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 427 mm of precipitation per year.
What is the hottest day ever recorded in Sanandaj?
The hottest day measured in Sanandaj between 1940 and 2025 was 27 July 2018, reaching 40.3 °C.
What is the coldest day in Sanandaj?
The coldest day measured in Sanandaj between 1940 and 2025 was 23 January 1964, at -33.2 °C.
Does it snow in Sanandaj?
Yes. Sanandaj gets on average 125.4 cm of snow per year and has around 122 frost days.
Has the climate of Sanandaj warmed?
Yes: Sanandaj warmed by +3.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sanandaj?
The wettest day measured in Sanandaj between 1940 and 2025 was 3 February 2006, with 67 mm of rain in 24 hours.
What was the windiest day in Sanandaj?
The windiest day measured in Sanandaj between 1940 and 2025 was 30 March 2009, with winds reaching 35.3 km/h.
What is the warmest month in Sanandaj?
The warmest month in Sanandaj is July (25.3 °C on average); the coldest is January (-4.9 °C).
How much does it rain in Sanandaj?
Sanandaj receives on average 427 mm of precipitation per year, spread over about 70 rainy days.
Is it sunny in Sanandaj?
Sanandaj 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 Sanandaj?
The heaviest 24-hour snowfall measured in Sanandaj between 1940 and 2025 was 19 February 1953, with 36.3 cm.
Are there tropical nights in Sanandaj?
Yes: Sanandaj has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sanandaj?
In Sanandaj, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 12 July 2010, and the lowest was -38.2 °C on 23 January 1964.
Compare Sanandaj with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sanandaj