Primorsk climate — normals and trends
Primorsk (Russia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 4.7 °C and it receives 724 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 (16.4 °C on average) and the coldest is February (-5.3 °C). Rainfall peaks in September.
Primorsk averages 129 frost days, 0 hot days (≥ 30 °C) and 142 rainy days per year.
Primorsk has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 145 to 113 per year over the period.
The hottest day of the period reached 28.5 °C (on 8 August 2010) and the coldest -30.8 °C (on 10 January 1987).
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
PrimorskLeningradskaya Oblast'
- coords
- 60.37°, 28.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
4.7°C
Average daily high
6.0°C
Average daily low
3.5°C
Annual rainfall
724mm
Sunshine / day
7.4h
Mean relative humidity
83%
Average peak wind
31.3km/h
Seasonal range
21.7°C
Frost days (< 0 °C)
129 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
142 d/yr
Annual snowfall
135.4 cm
Average feels-like high
1.7 °C
Average feels-like low
-1.8 °C
Average peak gust
42.3 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
9.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.32 · 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
28.5 °C
8 August 2010
Coldest day
-30.8 °C
10 January 1987
Wettest day
47 mm
15 August 1943
Windiest day
73.0 km/h
7 September 1977
Strongest gust
106.6 km/h
22 October 2021
Hottest feels-like
30.3 °C
10 July 2021
Coldest feels-like
-40.2 °C
15 January 1940
Snowiest day
15.3 cm
26 December 2009
Sunniest day
18.0 h
17 June 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 | 1.2 °C | +4.4 °C | 104 mm | +54 mm |
| Feb | -2.8 °C | +1.0 °C | 10 mm | -31 mm |
| Mar | 2.2 °C | +3.4 °C | 36 mm | -3 mm |
| Apr | 4.9 °C | +2.1 °C | 51 mm | +13 mm |
| May | 9.7 °C | +2.3 °C | 76 mm | +36 mm |
| Jun | 14.9 °C | +3.3 °C | 140 mm | +93 mm |
| Jul | 20.8 °C | +3.4 °C | 47 mm | -12 mm |
| Aug | 18.8 °C | +1.3 °C | 153 mm | +68 mm |
| Sep | 16.5 °C | +2.9 °C | 66 mm | -25 mm |
| Oct | 9.5 °C | +2.0 °C | 73 mm | -15 mm |
| Nov | 6.1 °C | +2.9 °C | 122 mm | +43 mm |
| Dec | 2.9 °C | +3.2 °C | 65 mm | -0 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 Primorsk?
Primorsk has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 4.7 °C and it receives 724 mm of precipitation per year.
What is the hottest day ever recorded in Primorsk?
The hottest day measured in Primorsk between 1940 and 2025 was 8 August 2010, reaching 28.5 °C.
What is the coldest day in Primorsk?
The coldest day measured in Primorsk between 1940 and 2025 was 10 January 1987, at -30.8 °C.
Does it snow in Primorsk?
Yes. Primorsk gets on average 135.4 cm of snow per year and has around 129 frost days.
Has the climate of Primorsk warmed?
Yes: Primorsk warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Primorsk?
The wettest day measured in Primorsk between 1940 and 2025 was 15 August 1943, with 47 mm of rain in 24 hours.
What was the windiest day in Primorsk?
The windiest day measured in Primorsk between 1940 and 2025 was 7 September 1977, with winds reaching 73.0 km/h.
What is the warmest month in Primorsk?
The warmest month in Primorsk is August (16.4 °C on average); the coldest is February (-5.3 °C).
How much does it rain in Primorsk?
Primorsk receives on average 724 mm of precipitation per year, spread over about 142 rainy days.
Is it sunny in Primorsk?
Primorsk gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Primorsk?
The heaviest 24-hour snowfall measured in Primorsk between 1940 and 2025 was 26 December 2009, with 15.3 cm.
Are there tropical nights in Primorsk?
Yes: Primorsk has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Primorsk?
In Primorsk, between 1940 and 2025, the highest apparent temperature reached 30.3 °C on 10 July 2021, and the lowest was -40.2 °C on 15 January 1940.
Compare Primorsk with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Primorsk