Behshahr climate — normals and trends
Behshahr (Iran) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.5 °C and it receives 625 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 (26.4 °C on average) and the coldest is January (6.6 °C). Rainfall peaks in October.
Behshahr averages 12 frost days, 44 hot days (≥ 30 °C) and 90 rainy days per year.
Behshahr has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 19 to 5 per year over the period.
The hottest day of the period reached 39.7 °C (on 29 June 1995) and the coldest -11.7 °C (on 29 January 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
BehshahrMazandaran
- coords
- 36.69°, 53.55°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.5°C
Average daily high
20.4°C
Average daily low
12.9°C
Annual rainfall
625mm
Sunshine / day
9.7h
Mean relative humidity
75%
Average peak wind
12.8km/h
Seasonal range
19.8°C
Frost days (< 0 °C)
12 d/yr
Hot days (≥ 30 °C)
44 d/yr
Rainy days (≥ 1 mm)
90 d/yr
Annual snowfall
16.4 cm
Average feels-like high
20.9 °C
Average feels-like low
12.3 °C
Average peak gust
26.7 km/h
Tropical nights (≥ 20 °C)
90 d/yr
Solar radiation
16.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.55 · 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
39.7 °C
29 June 1995
Coldest day
-11.7 °C
29 January 1950
Wettest day
101 mm
18 March 2019
Windiest day
38.9 km/h
27 November 1964
Strongest gust
73.4 km/h
5 March 2012
Hottest feels-like
43.4 °C
19 August 2014
Coldest feels-like
-16.8 °C
29 January 1950
Snowiest day
15.3 cm
13 February 1952
Sunniest day
13.3 h
23 June 2001
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 12.6 °C | +1.5 °C | 35 mm | -26 mm |
| Feb | 10.3 °C | -1.1 °C | 76 mm | +13 mm |
| Mar | 16.6 °C | +2.7 °C | 52 mm | -20 mm |
| Apr | 21.8 °C | +3.2 °C | 35 mm | -13 mm |
| May | 25.3 °C | +2.1 °C | 16 mm | -21 mm |
| Jun | 28.2 °C | +1.1 °C | 11 mm | -13 mm |
| Jul | 31.6 °C | +1.9 °C | 9 mm | -11 mm |
| Aug | 33.3 °C | +3.0 °C | 10 mm | -17 mm |
| Sep | 28.0 °C | +0.9 °C | 43 mm | -13 mm |
| Oct | 25.1 °C | +2.7 °C | 38 mm | -38 mm |
| Nov | 21.2 °C | +4.0 °C | 4 mm | -71 mm |
| Dec | 14.5 °C | +1.5 °C | 70 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 Behshahr?
Behshahr has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.5 °C and it receives 625 mm of precipitation per year.
What is the hottest day ever recorded in Behshahr?
The hottest day measured in Behshahr between 1940 and 2025 was 29 June 1995, reaching 39.7 °C.
What is the coldest day in Behshahr?
The coldest day measured in Behshahr between 1940 and 2025 was 29 January 1950, at -11.7 °C.
Does it snow in Behshahr?
Yes. Behshahr gets on average 16.4 cm of snow per year and has around 12 frost days.
Has the climate of Behshahr warmed?
Yes: Behshahr warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Behshahr?
The wettest day measured in Behshahr between 1940 and 2025 was 18 March 2019, with 101 mm of rain in 24 hours.
What was the windiest day in Behshahr?
The windiest day measured in Behshahr between 1940 and 2025 was 27 November 1964, with winds reaching 38.9 km/h.
What is the warmest month in Behshahr?
The warmest month in Behshahr is August (26.4 °C on average); the coldest is January (6.6 °C).
How much does it rain in Behshahr?
Behshahr receives on average 625 mm of precipitation per year, spread over about 90 rainy days.
Is it sunny in Behshahr?
Behshahr gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in Behshahr?
The heaviest 24-hour snowfall measured in Behshahr between 1940 and 2025 was 13 February 1952, with 15.3 cm.
Are there tropical nights in Behshahr?
Yes: Behshahr has on average 90 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Behshahr?
In Behshahr, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 19 August 2014, and the lowest was -16.8 °C on 29 January 1950.
Compare Behshahr with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Behshahr