Ustka climate — normals and trends
Ustka (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.2 °C and it receives 758 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 (17.4 °C on average) and the coldest is January (-0.3 °C). Rainfall peaks in July.
Ustka averages 67 frost days, 0 hot days (≥ 30 °C) and 148 rainy days per year.
Ustka has warmed by +2.4 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 91 to 43 per year over the period.
The hottest day of the period reached 32.2 °C (on 10 August 1992) and the coldest -23.8 °C (on 25 January 1942).
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
UstkaPomerania
- coords
- 54.58°, 16.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.2°C
Average daily high
10.4°C
Average daily low
6.0°C
Annual rainfall
758mm
Sunshine / day
7.7h
Mean relative humidity
81%
Average peak wind
25.3km/h
Seasonal range
17.7°C
Frost days (< 0 °C)
67 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
56.7 cm
Average feels-like high
7.2 °C
Average feels-like low
2.1 °C
Average peak gust
40.2 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.47 · 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
32.2 °C
10 August 1992
Coldest day
-23.8 °C
25 January 1942
Wettest day
104 mm
24 July 2010
Windiest day
74.5 km/h
14 January 1993
Strongest gust
123.1 km/h
18 January 1983
Hottest feels-like
34.3 °C
1 August 2018
Coldest feels-like
-30.3 °C
1 February 1956
Snowiest day
16.5 cm
4 April 1970
Sunniest day
16.0 h
25 June 2023
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 | 4.4 °C | +3.1 °C | 97 mm | +40 mm |
| Feb | 2.9 °C | +1.3 °C | 23 mm | -24 mm |
| Mar | 8.2 °C | +3.7 °C | 12 mm | -33 mm |
| Apr | 11.7 °C | +2.8 °C | 18 mm | -23 mm |
| May | 12.7 °C | -0.8 °C | 51 mm | -0 mm |
| Jun | 18.3 °C | +1.0 °C | 85 mm | +26 mm |
| Jul | 20.8 °C | +1.0 °C | 78 mm | -7 mm |
| Aug | 20.5 °C | +0.5 °C | 54 mm | -29 mm |
| Sep | 19.2 °C | +2.5 °C | 52 mm | -29 mm |
| Oct | 12.3 °C | +0.5 °C | 111 mm | +38 mm |
| Nov | 7.5 °C | +1.0 °C | 52 mm | -19 mm |
| Dec | 5.5 °C | +2.3 °C | 19 mm | -46 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 Ustka?
Ustka has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.2 °C and it receives 758 mm of precipitation per year.
What is the hottest day ever recorded in Ustka?
The hottest day measured in Ustka between 1940 and 2025 was 10 August 1992, reaching 32.2 °C.
What is the coldest day in Ustka?
The coldest day measured in Ustka between 1940 and 2025 was 25 January 1942, at -23.8 °C.
Does it snow in Ustka?
Yes. Ustka gets on average 56.7 cm of snow per year and has around 67 frost days.
Has the climate of Ustka warmed?
Yes: Ustka warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ustka?
The wettest day measured in Ustka between 1940 and 2025 was 24 July 2010, with 104 mm of rain in 24 hours.
What was the windiest day in Ustka?
The windiest day measured in Ustka between 1940 and 2025 was 14 January 1993, with winds reaching 74.5 km/h.
What is the warmest month in Ustka?
The warmest month in Ustka is August (17.4 °C on average); the coldest is January (-0.3 °C).
How much does it rain in Ustka?
Ustka receives on average 758 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Ustka?
Ustka gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ustka?
The heaviest 24-hour snowfall measured in Ustka between 1940 and 2025 was 4 April 1970, with 16.5 cm.
Are there tropical nights in Ustka?
Yes: Ustka has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ustka?
In Ustka, between 1940 and 2025, the highest apparent temperature reached 34.3 °C on 1 August 2018, and the lowest was -30.3 °C on 1 February 1956.
Compare Ustka with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ustka