Sarpol-e Z̄ahāb climate — normals and trends
Sarpol-e Z̄ahāb (Iran) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 19.7 °C and it receives 491 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 (33.2 °C on average) and the coldest is January (6.5 °C). Rainfall peaks in January.
Sarpol-e Z̄ahāb averages 18 frost days, 158 hot days (≥ 30 °C) and 59 rainy days per year.
Sarpol-e Z̄ahāb has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 26 to 10 per year over the period.
The hottest day of the period reached 47.6 °C (on 11 August 2003) and the coldest -15.4 °C (on 20 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
Sarpol-e Z̄ahābKermanshah Province
- coords
- 34.46°, 45.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.7°C
Average daily high
26.4°C
Average daily low
13.1°C
Annual rainfall
491mm
Sunshine / day
11.0h
Mean relative humidity
44%
Average peak wind
13.5km/h
Seasonal range
26.7°C
Frost days (< 0 °C)
18 d/yr
Hot days (≥ 30 °C)
158 d/yr
Rainy days (≥ 1 mm)
59 d/yr
Annual snowfall
9.3 cm
Average feels-like high
24.7 °C
Average feels-like low
10.4 °C
Average peak gust
32.4 km/h
Tropical nights (≥ 20 °C)
102 d/yr
Solar radiation
19.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.53 · 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
47.6 °C
11 August 2003
Coldest day
-15.4 °C
20 January 1964
Wettest day
71 mm
9 November 1980
Windiest day
42.4 km/h
27 May 1944
Strongest gust
103.3 km/h
24 November 1992
Hottest feels-like
47.6 °C
22 July 2000
Coldest feels-like
-20.5 °C
20 January 1964
Snowiest day
11.1 cm
25 February 1959
Sunniest day
14.0 h
31 May 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 | 14.4 °C | +2.4 °C | 24 mm | -65 mm |
| Feb | 12.0 °C | -1.8 °C | 66 mm | -14 mm |
| Mar | 20.2 °C | +2.3 °C | 52 mm | -37 mm |
| Apr | 27.2 °C | +3.2 °C | 49 mm | -10 mm |
| May | 35.0 °C | +4.1 °C | 14 mm | -4 mm |
| Jun | 39.1 °C | +1.9 °C | 0 mm | -0 mm |
| Jul | 42.1 °C | +1.6 °C | 0 mm | -0 mm |
| Aug | 42.8 °C | +2.5 °C | 0 mm | -0 mm |
| Sep | 36.2 °C | -0.1 °C | 0 mm | -0 mm |
| Oct | 31.2 °C | +1.9 °C | 0 mm | -16 mm |
| Nov | 24.9 °C | +4.5 °C | 14 mm | -45 mm |
| Dec | 15.1 °C | +0.8 °C | 188 mm | +107 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 Sarpol-e Z̄ahāb?
Sarpol-e Z̄ahāb has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 19.7 °C and it receives 491 mm of precipitation per year.
What is the hottest day ever recorded in Sarpol-e Z̄ahāb?
The hottest day measured in Sarpol-e Z̄ahāb between 1940 and 2025 was 11 August 2003, reaching 47.6 °C.
What is the coldest day in Sarpol-e Z̄ahāb?
The coldest day measured in Sarpol-e Z̄ahāb between 1940 and 2025 was 20 January 1964, at -15.4 °C.
Does it snow in Sarpol-e Z̄ahāb?
Yes. Sarpol-e Z̄ahāb gets on average 9.3 cm of snow per year and has around 18 frost days.
Has the climate of Sarpol-e Z̄ahāb warmed?
Yes: Sarpol-e Z̄ahāb warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sarpol-e Z̄ahāb?
The wettest day measured in Sarpol-e Z̄ahāb between 1940 and 2025 was 9 November 1980, with 71 mm of rain in 24 hours.
What was the windiest day in Sarpol-e Z̄ahāb?
The windiest day measured in Sarpol-e Z̄ahāb between 1940 and 2025 was 27 May 1944, with winds reaching 42.4 km/h.
What is the warmest month in Sarpol-e Z̄ahāb?
The warmest month in Sarpol-e Z̄ahāb is July (33.2 °C on average); the coldest is January (6.5 °C).
How much does it rain in Sarpol-e Z̄ahāb?
Sarpol-e Z̄ahāb receives on average 491 mm of precipitation per year, spread over about 59 rainy days.
Is it sunny in Sarpol-e Z̄ahāb?
Sarpol-e Z̄ahāb gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sarpol-e Z̄ahāb?
The heaviest 24-hour snowfall measured in Sarpol-e Z̄ahāb between 1940 and 2025 was 25 February 1959, with 11.1 cm.
Are there tropical nights in Sarpol-e Z̄ahāb?
Yes: Sarpol-e Z̄ahāb has on average 102 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sarpol-e Z̄ahāb?
In Sarpol-e Z̄ahāb, between 1940 and 2025, the highest apparent temperature reached 47.6 °C on 22 July 2000, and the lowest was -20.5 °C on 20 January 1964.
Compare Sarpol-e Z̄ahāb with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sarpol-e Z̄ahāb