Bābolsar climate — normals and trends
Bābolsar (Iran) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.6 °C and it receives 523 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 (27.2 °C on average) and the coldest is January (8.5 °C). Rainfall peaks in November.
Bābolsar averages 1 frost days, 40 hot days (≥ 30 °C) and 81 rainy days per year.
Bābolsar has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.2 °C (on 29 June 1995) and the coldest -7.0 °C (on 21 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
BābolsarMazandaran
- coords
- 36.70°, 52.65°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.6°C
Average daily high
20.7°C
Average daily low
14.7°C
Annual rainfall
523mm
Sunshine / day
9.7h
Mean relative humidity
79%
Average peak wind
15.5km/h
Seasonal range
18.7°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
81 d/yr
Annual snowfall
1.9 cm
Average feels-like high
21.3 °C
Average feels-like low
14.7 °C
Average peak gust
27.4 km/h
Tropical nights (≥ 20 °C)
114 d/yr
Solar radiation
15.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.56 · 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
40.2 °C
29 June 1995
Coldest day
-7.0 °C
21 January 1964
Wettest day
97 mm
22 September 1981
Windiest day
54.5 km/h
5 March 2012
Strongest gust
89.3 km/h
5 March 2012
Hottest feels-like
43.3 °C
2 August 2000
Coldest feels-like
-10.9 °C
21 January 1964
Snowiest day
13.6 cm
19 January 1964
Sunniest day
13.3 h
25 June 1961
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 | 13.7 °C | +1.9 °C | 47 mm | -10 mm |
| Feb | 11.4 °C | -0.5 °C | 64 mm | +12 mm |
| Mar | 16.7 °C | +2.8 °C | 29 mm | -24 mm |
| Apr | 21.2 °C | +2.8 °C | 19 mm | -12 mm |
| May | 24.6 °C | +1.4 °C | 20 mm | -2 mm |
| Jun | 27.8 °C | +0.6 °C | 11 mm | -4 mm |
| Jul | 30.7 °C | +1.3 °C | 7 mm | -7 mm |
| Aug | 32.6 °C | +2.4 °C | 4 mm | -14 mm |
| Sep | 28.2 °C | +0.7 °C | 69 mm | +26 mm |
| Oct | 25.7 °C | +2.5 °C | 32 mm | -41 mm |
| Nov | 22.3 °C | +4.2 °C | 7 mm | -68 mm |
| Dec | 15.9 °C | +2.1 °C | 65 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 Bābolsar?
Bābolsar has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.6 °C and it receives 523 mm of precipitation per year.
What is the hottest day ever recorded in Bābolsar?
The hottest day measured in Bābolsar between 1940 and 2025 was 29 June 1995, reaching 40.2 °C.
What is the coldest day in Bābolsar?
The coldest day measured in Bābolsar between 1940 and 2025 was 21 January 1964, at -7.0 °C.
Does it snow in Bābolsar?
Yes. Bābolsar gets on average 1.9 cm of snow per year and has around 1 frost days.
Has the climate of Bābolsar warmed?
Yes: Bābolsar warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bābolsar?
The wettest day measured in Bābolsar between 1940 and 2025 was 22 September 1981, with 97 mm of rain in 24 hours.
What was the windiest day in Bābolsar?
The windiest day measured in Bābolsar between 1940 and 2025 was 5 March 2012, with winds reaching 54.5 km/h.
What is the warmest month in Bābolsar?
The warmest month in Bābolsar is August (27.2 °C on average); the coldest is January (8.5 °C).
How much does it rain in Bābolsar?
Bābolsar receives on average 523 mm of precipitation per year, spread over about 81 rainy days.
Is it sunny in Bābolsar?
Bābolsar 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 Bābolsar?
The heaviest 24-hour snowfall measured in Bābolsar between 1940 and 2025 was 19 January 1964, with 13.6 cm.
Are there tropical nights in Bābolsar?
Yes: Bābolsar has on average 114 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bābolsar?
In Bābolsar, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 2 August 2000, and the lowest was -10.9 °C on 21 January 1964.
Compare Bābolsar with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bābolsar