Kőszeg climate — normals and trends
Kőszeg (Hungary) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.7 °C and it receives 704 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 (19.9 °C on average) and the coldest is January (-1.3 °C). Rainfall peaks in June.
Kőszeg averages 91 frost days, 8 hot days (≥ 30 °C) and 120 rainy days per year.
Kőszeg has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 112 to 70 per year over the period.
The hottest day of the period reached 37.7 °C (on 8 August 2013) and the coldest -26.5 °C (on 24 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
KőszegVas County
- coords
- 47.39°, 16.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.7°C
Average daily high
13.7°C
Average daily low
5.8°C
Annual rainfall
704mm
Sunshine / day
8.5h
Mean relative humidity
74%
Average peak wind
16.0km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
91 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
58.5 cm
Average feels-like high
11.6 °C
Average feels-like low
3.2 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.45 · 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
37.7 °C
8 August 2013
Coldest day
-26.5 °C
24 January 1942
Wettest day
60 mm
4 August 2009
Windiest day
47.5 km/h
10 February 1984
Strongest gust
99.0 km/h
10 February 1984
Hottest feels-like
39.6 °C
5 July 1957
Coldest feels-like
-31.1 °C
24 January 1942
Snowiest day
19.7 cm
6 March 1944
Sunniest day
15.4 h
22 June 2025
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 | 5.5 °C | +3.9 °C | 29 mm | -5 mm |
| Feb | 4.2 °C | 0.0 °C | 14 mm | -21 mm |
| Mar | 12.6 °C | +3.5 °C | 80 mm | +32 mm |
| Apr | 16.8 °C | +2.3 °C | 44 mm | -14 mm |
| May | 18.0 °C | -1.0 °C | 73 mm | -6 mm |
| Jun | 27.0 °C | +4.4 °C | 59 mm | -23 mm |
| Jul | 25.6 °C | +0.9 °C | 62 mm | -16 mm |
| Aug | 26.5 °C | +2.1 °C | 65 mm | -11 mm |
| Sep | 21.5 °C | +1.4 °C | 95 mm | +31 mm |
| Oct | 14.2 °C | -0.1 °C | 61 mm | +9 mm |
| Nov | 8.1 °C | +0.6 °C | 72 mm | +17 mm |
| Dec | 3.8 °C | +0.9 °C | 37 mm | -5 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 Kőszeg?
Kőszeg has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.7 °C and it receives 704 mm of precipitation per year.
What is the hottest day ever recorded in Kőszeg?
The hottest day measured in Kőszeg between 1940 and 2025 was 8 August 2013, reaching 37.7 °C.
What is the coldest day in Kőszeg?
The coldest day measured in Kőszeg between 1940 and 2025 was 24 January 1942, at -26.5 °C.
Does it snow in Kőszeg?
Yes. Kőszeg gets on average 58.5 cm of snow per year and has around 91 frost days.
Has the climate of Kőszeg warmed?
Yes: Kőszeg warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kőszeg?
The wettest day measured in Kőszeg between 1940 and 2025 was 4 August 2009, with 60 mm of rain in 24 hours.
What was the windiest day in Kőszeg?
The windiest day measured in Kőszeg between 1940 and 2025 was 10 February 1984, with winds reaching 47.5 km/h.
What is the warmest month in Kőszeg?
The warmest month in Kőszeg is July (19.9 °C on average); the coldest is January (-1.3 °C).
How much does it rain in Kőszeg?
Kőszeg receives on average 704 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Kőszeg?
Kőszeg gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kőszeg?
The heaviest 24-hour snowfall measured in Kőszeg between 1940 and 2025 was 6 March 1944, with 19.7 cm.
Are there tropical nights in Kőszeg?
Yes: Kőszeg has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kőszeg?
In Kőszeg, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 5 July 1957, and the lowest was -31.1 °C on 24 January 1942.
Compare Kőszeg with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kőszeg