Sari climate — normals and trends
Sari (Iran) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.7 °C and it receives 838 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 (5.4 °C). Rainfall peaks in October.
Sari averages 37 frost days, 54 hot days (≥ 30 °C) and 123 rainy days per year.
Sari has warmed by +3.0 °C between 1940 and 2025, or +0.35 °C per decade. This trend is statistically significant.
The number of frost days there went from about 54 to 20 per year over the period.
The hottest day of the period reached 42.4 °C (on 29 June 1995) and the coldest -18.3 °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
SariMazandaran
- coords
- 36.56°, 53.06°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.7°C
Average daily high
21.1°C
Average daily low
10.8°C
Annual rainfall
838mm
Sunshine / day
9.3h
Mean relative humidity
77%
Average peak wind
11.2km/h
Seasonal range
20.3°C
Frost days (< 0 °C)
37 d/yr
Hot days (≥ 30 °C)
54 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
15.1 cm
Average feels-like high
21.8 °C
Average feels-like low
10.2 °C
Average peak gust
25.7 km/h
Tropical nights (≥ 20 °C)
60 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.0 °C
since 1940
+0.4 °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
42.4 °C
29 June 1995
Coldest day
-18.3 °C
20 January 1964
Wettest day
96 mm
22 October 1967
Windiest day
36.6 km/h
19 November 1973
Strongest gust
74.9 km/h
21 March 1988
Hottest feels-like
45.3 °C
3 August 2000
Coldest feels-like
-23.4 °C
20 January 1964
Snowiest day
15.4 cm
19 January 1964
Sunniest day
13.3 h
23 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 | +2.1 °C | 47 mm | -20 mm |
| Feb | 11.1 °C | -1.3 °C | 70 mm | +1 mm |
| Mar | 18.1 °C | +3.0 °C | 51 mm | -30 mm |
| Apr | 23.1 °C | +3.3 °C | 39 mm | -20 mm |
| May | 26.0 °C | +1.8 °C | 26 mm | -28 mm |
| Jun | 28.7 °C | +0.9 °C | 21 mm | -23 mm |
| Jul | 32.6 °C | +2.6 °C | 21 mm | -25 mm |
| Aug | 34.0 °C | +3.3 °C | 38 mm | -22 mm |
| Sep | 28.4 °C | +0.9 °C | 94 mm | +3 mm |
| Oct | 25.9 °C | +2.9 °C | 60 mm | -44 mm |
| Nov | 22.4 °C | +4.6 °C | 14 mm | -73 mm |
| Dec | 15.2 °C | +1.7 °C | 81 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 Sari?
Sari has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.7 °C and it receives 838 mm of precipitation per year.
What is the hottest day ever recorded in Sari?
The hottest day measured in Sari between 1940 and 2025 was 29 June 1995, reaching 42.4 °C.
What is the coldest day in Sari?
The coldest day measured in Sari between 1940 and 2025 was 20 January 1964, at -18.3 °C.
Does it snow in Sari?
Yes. Sari gets on average 15.1 cm of snow per year and has around 37 frost days.
Has the climate of Sari warmed?
Yes: Sari warmed by +3.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sari?
The wettest day measured in Sari between 1940 and 2025 was 22 October 1967, with 96 mm of rain in 24 hours.
What was the windiest day in Sari?
The windiest day measured in Sari between 1940 and 2025 was 19 November 1973, with winds reaching 36.6 km/h.
What is the warmest month in Sari?
The warmest month in Sari is August (25.7 °C on average); the coldest is January (5.4 °C).
How much does it rain in Sari?
Sari receives on average 838 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Sari?
Sari 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 Sari?
The heaviest 24-hour snowfall measured in Sari between 1940 and 2025 was 19 January 1964, with 15.4 cm.
Are there tropical nights in Sari?
Yes: Sari has on average 60 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sari?
In Sari, between 1940 and 2025, the highest apparent temperature reached 45.3 °C on 3 August 2000, and the lowest was -23.4 °C on 20 January 1964.
Compare Sari with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sari