Opole climate — normals and trends
Opole (Poland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 695 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 (19.0 °C on average) and the coldest is January (-1.8 °C). Rainfall peaks in July.
Opole averages 91 frost days, 7 hot days (≥ 30 °C) and 136 rainy days per year.
Opole has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 110 to 72 per year over the period.
The hottest day of the period reached 37.1 °C (on 7 August 2015) and the coldest -28.9 °C (on 13 January 1987).
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
OpoleOpole Voivodeship
- coords
- 50.67°, 17.93°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
12.8°C
Average daily low
5.1°C
Annual rainfall
695mm
Sunshine / day
7.5h
Mean relative humidity
77%
Average peak wind
18.1km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
91 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
56.1 cm
Average feels-like high
10.2 °C
Average feels-like low
2.1 °C
Average peak gust
34.5 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.51 · 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
37.1 °C
7 August 2015
Coldest day
-28.9 °C
13 January 1987
Wettest day
68 mm
14 July 2016
Windiest day
52.7 km/h
28 March 1997
Strongest gust
108.7 km/h
18 January 2007
Hottest feels-like
38.2 °C
5 July 1957
Coldest feels-like
-34.8 °C
13 January 1987
Snowiest day
11.8 cm
30 December 2005
Sunniest day
16.0 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 | +4.6 °C | 42 mm | +1 mm |
| Feb | 4.1 °C | +1.6 °C | 9 mm | -31 mm |
| Mar | 12.2 °C | +4.9 °C | 36 mm | -9 mm |
| Apr | 16.8 °C | +3.3 °C | 31 mm | -19 mm |
| May | 16.8 °C | -1.7 °C | 74 mm | +4 mm |
| Jun | 24.0 °C | +2.1 °C | 52 mm | -29 mm |
| Jul | 24.2 °C | +0.5 °C | 152 mm | +56 mm |
| Aug | 24.7 °C | +1.2 °C | 38 mm | -36 mm |
| Sep | 20.4 °C | +1.3 °C | 92 mm | +35 mm |
| Oct | 12.4 °C | -1.1 °C | 71 mm | +25 mm |
| Nov | 7.3 °C | +0.4 °C | 64 mm | +15 mm |
| Dec | 4.4 °C | +1.9 °C | 14 mm | -33 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 Opole?
Opole has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 695 mm of precipitation per year.
What is the hottest day ever recorded in Opole?
The hottest day measured in Opole between 1940 and 2025 was 7 August 2015, reaching 37.1 °C.
What is the coldest day in Opole?
The coldest day measured in Opole between 1940 and 2025 was 13 January 1987, at -28.9 °C.
Does it snow in Opole?
Yes. Opole gets on average 56.1 cm of snow per year and has around 91 frost days.
Has the climate of Opole warmed?
Yes: Opole warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Opole?
The wettest day measured in Opole between 1940 and 2025 was 14 July 2016, with 68 mm of rain in 24 hours.
What was the windiest day in Opole?
The windiest day measured in Opole between 1940 and 2025 was 28 March 1997, with winds reaching 52.7 km/h.
What is the warmest month in Opole?
The warmest month in Opole is July (19.0 °C on average); the coldest is January (-1.8 °C).
How much does it rain in Opole?
Opole receives on average 695 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Opole?
Opole 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 Opole?
The heaviest 24-hour snowfall measured in Opole between 1940 and 2025 was 30 December 2005, with 11.8 cm.
Are there tropical nights in Opole?
Yes: Opole has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Opole?
In Opole, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 5 July 1957, and the lowest was -34.8 °C on 13 January 1987.
Compare Opole with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Opole