Ruda Śląska climate — normals and trends
Ruda Śląska (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.7 °C and it receives 763 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 (18.7 °C on average) and the coldest is January (-2.3 °C). Rainfall peaks in July.
Ruda Śląska averages 94 frost days, 5 hot days (≥ 30 °C) and 145 rainy days per year.
Ruda Śląska has warmed by +2.8 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 114 to 74 per year over the period.
The hottest day of the period reached 37.5 °C (on 1 July 2019) and the coldest -29.3 °C (on 11 January 1940).
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
Ruda ŚląskaSilesia
- coords
- 50.26°, 18.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.7°C
Average daily high
12.5°C
Average daily low
4.9°C
Annual rainfall
763mm
Sunshine / day
7.5h
Mean relative humidity
78%
Average peak wind
18.8km/h
Seasonal range
21.0°C
Frost days (< 0 °C)
94 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
145 d/yr
Annual snowfall
69.6 cm
Average feels-like high
9.9 °C
Average feels-like low
1.9 °C
Average peak gust
35.2 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.53 · 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
37.5 °C
1 July 2019
Coldest day
-29.3 °C
11 January 1940
Wettest day
57 mm
8 July 1997
Windiest day
53.8 km/h
2 March 1956
Strongest gust
105.5 km/h
19 January 2007
Hottest feels-like
39.2 °C
8 July 1957
Coldest feels-like
-34.6 °C
11 January 1940
Snowiest day
19.7 cm
3 April 1970
Sunniest day
15.7 h
3 July 2015
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 | 5.2 °C | +5.1 °C | 50 mm | +4 mm |
| Feb | 4.1 °C | +2.0 °C | 17 mm | -27 mm |
| Mar | 12.4 °C | +5.2 °C | 48 mm | -0 mm |
| Apr | 16.8 °C | +3.4 °C | 28 mm | -28 mm |
| May | 16.7 °C | -1.6 °C | 77 mm | -2 mm |
| Jun | 24.2 °C | +2.7 °C | 56 mm | -33 mm |
| Jul | 24.3 °C | +1.0 °C | 151 mm | +50 mm |
| Aug | 25.2 °C | +2.0 °C | 32 mm | -49 mm |
| Sep | 20.5 °C | +1.6 °C | 112 mm | +48 mm |
| Oct | 12.6 °C | -0.9 °C | 81 mm | +30 mm |
| Nov | 7.4 °C | +0.6 °C | 77 mm | +23 mm |
| Dec | 4.3 °C | +2.2 °C | 12 mm | -38 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 Ruda Śląska?
Ruda Śląska has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.7 °C and it receives 763 mm of precipitation per year.
What is the hottest day ever recorded in Ruda Śląska?
The hottest day measured in Ruda Śląska between 1940 and 2025 was 1 July 2019, reaching 37.5 °C.
What is the coldest day in Ruda Śląska?
The coldest day measured in Ruda Śląska between 1940 and 2025 was 11 January 1940, at -29.3 °C.
Does it snow in Ruda Śląska?
Yes. Ruda Śląska gets on average 69.6 cm of snow per year and has around 94 frost days.
Has the climate of Ruda Śląska warmed?
Yes: Ruda Śląska warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ruda Śląska?
The wettest day measured in Ruda Śląska between 1940 and 2025 was 8 July 1997, with 57 mm of rain in 24 hours.
What was the windiest day in Ruda Śląska?
The windiest day measured in Ruda Śląska between 1940 and 2025 was 2 March 1956, with winds reaching 53.8 km/h.
What is the warmest month in Ruda Śląska?
The warmest month in Ruda Śląska is July (18.7 °C on average); the coldest is January (-2.3 °C).
How much does it rain in Ruda Śląska?
Ruda Śląska receives on average 763 mm of precipitation per year, spread over about 145 rainy days.
Is it sunny in Ruda Śląska?
Ruda Śląska gets on average 7.5 hours of sunshine per day, roughly 2,738 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ruda Śląska?
The heaviest 24-hour snowfall measured in Ruda Śląska between 1940 and 2025 was 3 April 1970, with 19.7 cm.
Are there tropical nights in Ruda Śląska?
Yes: Ruda Śląska has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ruda Śląska?
In Ruda Śląska, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 8 July 1957, and the lowest was -34.6 °C on 11 January 1940.
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Nearby cities
The climate around Ruda Śląska