Kartuzy climate — normals and trends
Kartuzy (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.1 °C and it receives 678 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 July (16.9 °C on average) and the coldest is January (-2.6 °C). Rainfall peaks in July.
Kartuzy averages 108 frost days, 1 hot days (≥ 30 °C) and 139 rainy days per year.
Kartuzy has warmed by +2.3 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 130 to 86 per year over the period.
The hottest day of the period reached 34.2 °C (on 10 August 1992) and the coldest -29.6 °C (on 1 February 1956).
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
KartuzyPomerania
- coords
- 54.33°, 18.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.1°C
Average daily high
10.4°C
Average daily low
3.8°C
Annual rainfall
678mm
Sunshine / day
7.4h
Mean relative humidity
83%
Average peak wind
21.0km/h
Seasonal range
19.5°C
Frost days (< 0 °C)
108 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
69.2 cm
Average feels-like high
7.3 °C
Average feels-like low
0.3 °C
Average peak gust
39.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.41 · 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
34.2 °C
10 August 1992
Coldest day
-29.6 °C
1 February 1956
Wettest day
49 mm
14 July 2016
Windiest day
62.8 km/h
2 November 1981
Strongest gust
118.1 km/h
18 January 1983
Hottest feels-like
35.6 °C
30 July 1994
Coldest feels-like
-35.2 °C
1 February 1956
Snowiest day
20.2 cm
4 April 1970
Sunniest day
16.1 h
21 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 3.2 °C | +3.8 °C | 76 mm | +35 mm |
| Feb | 1.8 °C | +1.5 °C | 22 mm | -16 mm |
| Mar | 9.7 °C | +5.3 °C | 17 mm | -23 mm |
| Apr | 13.7 °C | +3.3 °C | 37 mm | -11 mm |
| May | 13.9 °C | -1.7 °C | 67 mm | -1 mm |
| Jun | 19.5 °C | +0.4 °C | 75 mm | -2 mm |
| Jul | 21.5 °C | +0.7 °C | 145 mm | +48 mm |
| Aug | 20.7 °C | 0.0 °C | 70 mm | -11 mm |
| Sep | 18.7 °C | +2.0 °C | 45 mm | -13 mm |
| Oct | 11.2 °C | 0.0 °C | 75 mm | +30 mm |
| Nov | 5.4 °C | +0.4 °C | 44 mm | -0 mm |
| Dec | 3.9 °C | +2.6 °C | 19 mm | -26 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 Kartuzy?
Kartuzy has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.1 °C and it receives 678 mm of precipitation per year.
What is the hottest day ever recorded in Kartuzy?
The hottest day measured in Kartuzy between 1940 and 2025 was 10 August 1992, reaching 34.2 °C.
What is the coldest day in Kartuzy?
The coldest day measured in Kartuzy between 1940 and 2025 was 1 February 1956, at -29.6 °C.
Does it snow in Kartuzy?
Yes. Kartuzy gets on average 69.2 cm of snow per year and has around 108 frost days.
Has the climate of Kartuzy warmed?
Yes: Kartuzy warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kartuzy?
The wettest day measured in Kartuzy between 1940 and 2025 was 14 July 2016, with 49 mm of rain in 24 hours.
What was the windiest day in Kartuzy?
The windiest day measured in Kartuzy between 1940 and 2025 was 2 November 1981, with winds reaching 62.8 km/h.
What is the warmest month in Kartuzy?
The warmest month in Kartuzy is July (16.9 °C on average); the coldest is January (-2.6 °C).
How much does it rain in Kartuzy?
Kartuzy receives on average 678 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Kartuzy?
Kartuzy 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 Kartuzy?
The heaviest 24-hour snowfall measured in Kartuzy between 1940 and 2025 was 4 April 1970, with 20.2 cm.
Are there tropical nights in Kartuzy?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kartuzy.
What was the most extreme apparent temperature in Kartuzy?
In Kartuzy, between 1940 and 2025, the highest apparent temperature reached 35.6 °C on 30 July 1994, and the lowest was -35.2 °C on 1 February 1956.
Compare Kartuzy with another city
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Nearby cities
The climate around Kartuzy