Giżycko climate — normals and trends
Giżycko (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.3 °C and it receives 666 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 (-3.6 °C). Rainfall peaks in July.
Giżycko averages 104 frost days, 2 hot days (≥ 30 °C) and 137 rainy days per year.
Giżycko 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 126 to 82 per year over the period.
The hottest day of the period reached 35.1 °C (on 31 July 1994) and the coldest -31.2 °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
GiżyckoWarmia-Masuria
- coords
- 54.04°, 21.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.3°C
Average daily high
10.5°C
Average daily low
4.2°C
Annual rainfall
666mm
Sunshine / day
7.2h
Mean relative humidity
81%
Average peak wind
18.3km/h
Seasonal range
21.5°C
Frost days (< 0 °C)
104 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
75.0 cm
Average feels-like high
7.7 °C
Average feels-like low
1.0 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.42 · 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
35.1 °C
31 July 1994
Coldest day
-31.2 °C
25 January 1942
Wettest day
43 mm
30 August 1988
Windiest day
53.9 km/h
17 January 1955
Strongest gust
105.8 km/h
18 November 2004
Hottest feels-like
35.9 °C
17 July 2007
Coldest feels-like
-36.8 °C
31 January 1956
Snowiest day
18.8 cm
30 January 1979
Sunniest day
16.7 h
14 June 2021
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 | +5.2 °C | 49 mm | +6 mm |
| Feb | 1.1 °C | +1.6 °C | 15 mm | -24 mm |
| Mar | 9.9 °C | +5.9 °C | 42 mm | +2 mm |
| Apr | 14.8 °C | +4.0 °C | 17 mm | -30 mm |
| May | 14.5 °C | -2.3 °C | 63 mm | +4 mm |
| Jun | 20.4 °C | +0.3 °C | 63 mm | -11 mm |
| Jul | 22.6 °C | +0.8 °C | 125 mm | +40 mm |
| Aug | 21.5 °C | 0.0 °C | 74 mm | +1 mm |
| Sep | 19.3 °C | +2.4 °C | 96 mm | +40 mm |
| Oct | 10.9 °C | +0.1 °C | 78 mm | +27 mm |
| Nov | 5.0 °C | +0.5 °C | 58 mm | +7 mm |
| Dec | 3.7 °C | +3.1 °C | 26 mm | -22 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 Giżycko?
Giżycko has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.3 °C and it receives 666 mm of precipitation per year.
What is the hottest day ever recorded in Giżycko?
The hottest day measured in Giżycko between 1940 and 2025 was 31 July 1994, reaching 35.1 °C.
What is the coldest day in Giżycko?
The coldest day measured in Giżycko between 1940 and 2025 was 25 January 1942, at -31.2 °C.
Does it snow in Giżycko?
Yes. Giżycko gets on average 75.0 cm of snow per year and has around 104 frost days.
Has the climate of Giżycko warmed?
Yes: Giżycko warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Giżycko?
The wettest day measured in Giżycko between 1940 and 2025 was 30 August 1988, with 43 mm of rain in 24 hours.
What was the windiest day in Giżycko?
The windiest day measured in Giżycko between 1940 and 2025 was 17 January 1955, with winds reaching 53.9 km/h.
What is the warmest month in Giżycko?
The warmest month in Giżycko is July (17.9 °C on average); the coldest is January (-3.6 °C).
How much does it rain in Giżycko?
Giżycko receives on average 666 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Giżycko?
Giżycko gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Giżycko?
The heaviest 24-hour snowfall measured in Giżycko between 1940 and 2025 was 30 January 1979, with 18.8 cm.
Are there tropical nights in Giżycko?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Giżycko.
What was the most extreme apparent temperature in Giżycko?
In Giżycko, between 1940 and 2025, the highest apparent temperature reached 35.9 °C on 17 July 2007, and the lowest was -36.8 °C on 31 January 1956.
Compare Giżycko with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Giżycko