Babol climate — normals and trends
Babol (Iran) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.1 °C and it receives 760 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 (25.7 °C on average) and the coldest is January (6.2 °C). Rainfall peaks in October.
Babol averages 22 frost days, 43 hot days (≥ 30 °C) and 120 rainy days per year.
Babol has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The number of frost days there went from about 35 to 9 per year over the period.
The hottest day of the period reached 42.0 °C (on 29 June 1995) and the coldest -15.2 °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
BabolMazandaran
- coords
- 36.55°, 52.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.1°C
Average daily high
20.7°C
Average daily low
11.8°C
Annual rainfall
760mm
Sunshine / day
9.3h
Mean relative humidity
78%
Average peak wind
10.8km/h
Seasonal range
19.5°C
Frost days (< 0 °C)
22 d/yr
Hot days (≥ 30 °C)
43 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
11.0 cm
Average feels-like high
21.6 °C
Average feels-like low
11.4 °C
Average peak gust
24.7 km/h
Tropical nights (≥ 20 °C)
71 d/yr
Solar radiation
15.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.58 · 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
42.0 °C
29 June 1995
Coldest day
-15.2 °C
21 January 1964
Wettest day
102 mm
22 September 1981
Windiest day
38.7 km/h
27 November 1964
Strongest gust
77.8 km/h
4 December 2015
Hottest feels-like
45.3 °C
29 June 1995
Coldest feels-like
-20.0 °C
21 January 1964
Snowiest day
14.9 cm
19 January 1964
Sunniest day
13.3 h
26 June 2021
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 | 13.8 °C | +2.2 °C | 50 mm | -12 mm |
| Feb | 11.1 °C | -1.1 °C | 61 mm | -1 mm |
| Mar | 17.9 °C | +3.1 °C | 46 mm | -26 mm |
| Apr | 22.7 °C | +3.3 °C | 38 mm | -14 mm |
| May | 25.5 °C | +1.8 °C | 29 mm | -18 mm |
| Jun | 28.0 °C | +0.9 °C | 21 mm | -19 mm |
| Jul | 31.4 °C | +2.2 °C | 28 mm | -17 mm |
| Aug | 32.9 °C | +3.0 °C | 40 mm | -14 mm |
| Sep | 27.7 °C | +0.6 °C | 81 mm | +2 mm |
| Oct | 25.6 °C | +2.8 °C | 59 mm | -38 mm |
| Nov | 22.3 °C | +4.6 °C | 18 mm | -64 mm |
| Dec | 15.2 °C | +1.8 °C | 72 mm | +2 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 Babol?
Babol has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 760 mm of precipitation per year.
What is the hottest day ever recorded in Babol?
The hottest day measured in Babol between 1940 and 2025 was 29 June 1995, reaching 42.0 °C.
What is the coldest day in Babol?
The coldest day measured in Babol between 1940 and 2025 was 21 January 1964, at -15.2 °C.
Does it snow in Babol?
Yes. Babol gets on average 11.0 cm of snow per year and has around 22 frost days.
Has the climate of Babol warmed?
Yes: Babol warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Babol?
The wettest day measured in Babol between 1940 and 2025 was 22 September 1981, with 102 mm of rain in 24 hours.
What was the windiest day in Babol?
The windiest day measured in Babol between 1940 and 2025 was 27 November 1964, with winds reaching 38.7 km/h.
What is the warmest month in Babol?
The warmest month in Babol is August (25.7 °C on average); the coldest is January (6.2 °C).
How much does it rain in Babol?
Babol receives on average 760 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Babol?
Babol gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Babol?
The heaviest 24-hour snowfall measured in Babol between 1940 and 2025 was 19 January 1964, with 14.9 cm.
Are there tropical nights in Babol?
Yes: Babol has on average 71 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Babol?
In Babol, between 1940 and 2025, the highest apparent temperature reached 45.3 °C on 29 June 1995, and the lowest was -20.0 °C on 21 January 1964.
Compare Babol with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Babol