Korsakov climate — normals and trends
Korsakov (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 3.3 °C and it receives 799 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 (17.3 °C on average) and the coldest is January (-11.4 °C). Rainfall peaks in August.
Korsakov averages 171 frost days, 0 hot days (≥ 30 °C) and 111 rainy days per year.
Korsakov has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 178 to 164 per year over the period.
The hottest day of the period reached 30.9 °C (on 29 July 2021) and the coldest -28.9 °C (on 13 January 1979).
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
KorsakovSakhalin Oblast
- coords
- 46.63°, 142.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
3.3°C
Average daily high
6.8°C
Average daily low
0.0°C
Annual rainfall
799mm
Sunshine / day
8.3h
Mean relative humidity
79%
Average peak wind
19.2km/h
Seasonal range
28.7°C
Frost days (< 0 °C)
171 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
111 d/yr
Annual snowfall
175.8 cm
Average feels-like high
3.7 °C
Average feels-like low
-3.5 °C
Average peak gust
39.8 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
12.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
30.9 °C
29 July 2021
Coldest day
-28.9 °C
13 January 1979
Wettest day
125 mm
16 September 1947
Windiest day
59.0 km/h
2 October 2015
Strongest gust
124.9 km/h
17 September 1961
Hottest feels-like
36.3 °C
29 July 2021
Coldest feels-like
-33.8 °C
13 January 1979
Snowiest day
40.5 cm
25 November 1988
Sunniest day
15.0 h
21 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 | -3.6 °C | +4.1 °C | 77 mm | +38 mm |
| Feb | -2.6 °C | +3.6 °C | 47 mm | +11 mm |
| Mar | -0.5 °C | +0.6 °C | 63 mm | +10 mm |
| Apr | 6.1 °C | +0.7 °C | 56 mm | -6 mm |
| May | 12.9 °C | +2.3 °C | 29 mm | -38 mm |
| Jun | 18.3 °C | +4.1 °C | 45 mm | -12 mm |
| Jul | 23.6 °C | +5.3 °C | 38 mm | -37 mm |
| Aug | 23.5 °C | +3.3 °C | 151 mm | +48 mm |
| Sep | 20.5 °C | +3.0 °C | 101 mm | -1 mm |
| Oct | 10.3 °C | -0.9 °C | 68 mm | -16 mm |
| Nov | 3.9 °C | +1.0 °C | 73 mm | +5 mm |
| Dec | -3.5 °C | +0.6 °C | 37 mm | -15 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 Korsakov?
Korsakov has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 3.3 °C and it receives 799 mm of precipitation per year.
What is the hottest day ever recorded in Korsakov?
The hottest day measured in Korsakov between 1940 and 2025 was 29 July 2021, reaching 30.9 °C.
What is the coldest day in Korsakov?
The coldest day measured in Korsakov between 1940 and 2025 was 13 January 1979, at -28.9 °C.
Does it snow in Korsakov?
Yes. Korsakov gets on average 175.8 cm of snow per year and has around 171 frost days.
Has the climate of Korsakov warmed?
Yes: Korsakov warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Korsakov?
The wettest day measured in Korsakov between 1940 and 2025 was 16 September 1947, with 125 mm of rain in 24 hours.
What was the windiest day in Korsakov?
The windiest day measured in Korsakov between 1940 and 2025 was 2 October 2015, with winds reaching 59.0 km/h.
What is the warmest month in Korsakov?
The warmest month in Korsakov is August (17.3 °C on average); the coldest is January (-11.4 °C).
How much does it rain in Korsakov?
Korsakov receives on average 799 mm of precipitation per year, spread over about 111 rainy days.
Is it sunny in Korsakov?
Korsakov gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Korsakov?
The heaviest 24-hour snowfall measured in Korsakov between 1940 and 2025 was 25 November 1988, with 40.5 cm.
Are there tropical nights in Korsakov?
Yes: Korsakov has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Korsakov?
In Korsakov, between 1940 and 2025, the highest apparent temperature reached 36.3 °C on 29 July 2021, and the lowest was -33.8 °C on 13 January 1979.
Compare Korsakov with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Korsakov