Sulęcin climate — normals and trends
Sulęcin (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.0 °C and it receives 639 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 (18.6 °C on average) and the coldest is January (-0.9 °C). Rainfall peaks in July.
Sulęcin averages 83 frost days, 6 hot days (≥ 30 °C) and 132 rainy days per year.
Sulęcin has warmed by +2.5 °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 100 to 66 per year over the period.
The hottest day of the period reached 38.5 °C (on 1 August 1994) and the coldest -27.9 °C (on 9 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
SulęcinLesser Poland
- coords
- 52.44°, 15.12°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.0°C
Average daily high
12.5°C
Average daily low
5.4°C
Annual rainfall
639mm
Sunshine / day
7.3h
Mean relative humidity
77%
Average peak wind
17.7km/h
Seasonal range
19.5°C
Frost days (< 0 °C)
83 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
44.8 cm
Average feels-like high
9.9 °C
Average feels-like low
2.4 °C
Average peak gust
37.0 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.46 · 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
38.5 °C
1 August 1994
Coldest day
-27.9 °C
9 February 1956
Wettest day
60 mm
8 August 1978
Windiest day
56.4 km/h
13 November 1972
Strongest gust
128.5 km/h
13 November 1972
Hottest feels-like
38.7 °C
2 August 1943
Coldest feels-like
-33.4 °C
9 February 1956
Snowiest day
18.4 cm
3 March 1965
Sunniest day
16.0 h
5 June 1940
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 | 4.5 °C | +3.2 °C | 72 mm | +26 mm |
| Feb | 4.0 °C | +1.3 °C | 29 mm | -12 mm |
| Mar | 11.8 °C | +4.7 °C | 19 mm | -25 mm |
| Apr | 17.3 °C | +4.4 °C | 16 mm | -31 mm |
| May | 18.1 °C | +0.1 °C | 47 mm | -13 mm |
| Jun | 24.9 °C | +3.4 °C | 39 mm | -27 mm |
| Jul | 23.9 °C | +0.9 °C | 151 mm | +74 mm |
| Aug | 24.2 °C | +1.3 °C | 52 mm | -14 mm |
| Sep | 20.4 °C | +1.8 °C | 62 mm | +13 mm |
| Oct | 12.6 °C | -0.3 °C | 57 mm | +13 mm |
| Nov | 7.7 °C | +1.2 °C | 29 mm | -20 mm |
| Dec | 5.0 °C | +2.2 °C | 29 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 Sulęcin?
Sulęcin has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.0 °C and it receives 639 mm of precipitation per year.
What is the hottest day ever recorded in Sulęcin?
The hottest day measured in Sulęcin between 1940 and 2025 was 1 August 1994, reaching 38.5 °C.
What is the coldest day in Sulęcin?
The coldest day measured in Sulęcin between 1940 and 2025 was 9 February 1956, at -27.9 °C.
Does it snow in Sulęcin?
Yes. Sulęcin gets on average 44.8 cm of snow per year and has around 83 frost days.
Has the climate of Sulęcin warmed?
Yes: Sulęcin warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sulęcin?
The wettest day measured in Sulęcin between 1940 and 2025 was 8 August 1978, with 60 mm of rain in 24 hours.
What was the windiest day in Sulęcin?
The windiest day measured in Sulęcin between 1940 and 2025 was 13 November 1972, with winds reaching 56.4 km/h.
What is the warmest month in Sulęcin?
The warmest month in Sulęcin is July (18.6 °C on average); the coldest is January (-0.9 °C).
How much does it rain in Sulęcin?
Sulęcin receives on average 639 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Sulęcin?
Sulęcin 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 Sulęcin?
The heaviest 24-hour snowfall measured in Sulęcin between 1940 and 2025 was 3 March 1965, with 18.4 cm.
Are there tropical nights in Sulęcin?
Yes: Sulęcin has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sulęcin?
In Sulęcin, between 1940 and 2025, the highest apparent temperature reached 38.7 °C on 2 August 1943, and the lowest was -33.4 °C on 9 February 1956.
Compare Sulęcin with another city
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Nearby cities
The climate around Sulęcin