Kwidzyn climate — normals and trends
Kwidzyn (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.9 °C and it receives 637 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 (17.9 °C on average) and the coldest is January (-2.4 °C). Rainfall peaks in July.
Kwidzyn averages 99 frost days, 2 hot days (≥ 30 °C) and 131 rainy days per year.
Kwidzyn has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 119 to 79 per year over the period.
The hottest day of the period reached 35.5 °C (on 10 August 1992) and the coldest -29.7 °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
KwidzynPomerania
- coords
- 53.72°, 18.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.9°C
Average daily high
11.3°C
Average daily low
4.4°C
Annual rainfall
637mm
Sunshine / day
7.3h
Mean relative humidity
80%
Average peak wind
19.4km/h
Seasonal range
20.3°C
Frost days (< 0 °C)
99 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
131 d/yr
Annual snowfall
55.4 cm
Average feels-like high
8.5 °C
Average feels-like low
1.2 °C
Average peak gust
36.7 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 = 0.40 · 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
35.5 °C
10 August 1992
Coldest day
-29.7 °C
1 February 1956
Wettest day
73 mm
28 July 2025
Windiest day
57.3 km/h
17 January 1955
Strongest gust
106.6 km/h
18 November 2004
Hottest feels-like
36.5 °C
30 July 1994
Coldest feels-like
-35.4 °C
1 February 1956
Snowiest day
19.1 cm
4 April 1970
Sunniest day
16.1 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 | 4.2 °C | +4.5 °C | 65 mm | +27 mm |
| Feb | 2.6 °C | +1.7 °C | 15 mm | -20 mm |
| Mar | 10.8 °C | +5.5 °C | 21 mm | -16 mm |
| Apr | 14.9 °C | +3.3 °C | 26 mm | -18 mm |
| May | 14.9 °C | -1.9 °C | 71 mm | +9 mm |
| Jun | 21.0 °C | +0.8 °C | 56 mm | -16 mm |
| Jul | 22.5 °C | +0.5 °C | 248 mm | +157 mm |
| Aug | 21.8 °C | -0.1 °C | 65 mm | -6 mm |
| Sep | 19.5 °C | +1.8 °C | 74 mm | +21 mm |
| Oct | 11.8 °C | -0.2 °C | 72 mm | +28 mm |
| Nov | 5.8 °C | +0.2 °C | 42 mm | -2 mm |
| Dec | 4.2 °C | +2.4 °C | 21 mm | -23 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 Kwidzyn?
Kwidzyn has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.9 °C and it receives 637 mm of precipitation per year.
What is the hottest day ever recorded in Kwidzyn?
The hottest day measured in Kwidzyn between 1940 and 2025 was 10 August 1992, reaching 35.5 °C.
What is the coldest day in Kwidzyn?
The coldest day measured in Kwidzyn between 1940 and 2025 was 1 February 1956, at -29.7 °C.
Does it snow in Kwidzyn?
Yes. Kwidzyn gets on average 55.4 cm of snow per year and has around 99 frost days.
Has the climate of Kwidzyn warmed?
Yes: Kwidzyn warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kwidzyn?
The wettest day measured in Kwidzyn between 1940 and 2025 was 28 July 2025, with 73 mm of rain in 24 hours.
What was the windiest day in Kwidzyn?
The windiest day measured in Kwidzyn between 1940 and 2025 was 17 January 1955, with winds reaching 57.3 km/h.
What is the warmest month in Kwidzyn?
The warmest month in Kwidzyn is July (17.9 °C on average); the coldest is January (-2.4 °C).
How much does it rain in Kwidzyn?
Kwidzyn receives on average 637 mm of precipitation per year, spread over about 131 rainy days.
Is it sunny in Kwidzyn?
Kwidzyn gets on average 7.3 hours of sunshine per day, roughly 2,665 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kwidzyn?
The heaviest 24-hour snowfall measured in Kwidzyn between 1940 and 2025 was 4 April 1970, with 19.1 cm.
Are there tropical nights in Kwidzyn?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kwidzyn.
What was the most extreme apparent temperature in Kwidzyn?
In Kwidzyn, between 1940 and 2025, the highest apparent temperature reached 36.5 °C on 30 July 1994, and the lowest was -35.4 °C on 1 February 1956.
Compare Kwidzyn with another city
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Nearby cities
The climate around Kwidzyn