Climate of Kőszeg
Vas County · monthly averages, precipitation, records and warming trend
Climate of Kőszeg in brief
Based on daily data from 2000–2025, the mean annual temperature in Kőszeg is 10.5 °C. Summer afternoons reach 25.5 °C on average in July, while January nights fall to -3.3 °C. The area receives about 758 mm of precipitation a year, spread over 129 days with at least 1 mm.
That makes Kőszeg the 332nd warmest of 348 Hungarian towns: 1.2 °C cooler than the national town average (11.7 °C), and 73 mm wetter (33rd by precipitation).
A typical year brings 10 hot days (at least 30 °C), 51 summer days (at least 25 °C) and 91 frost days (minimum below 0 °C). The warmest month is July, the coldest January.
The climate is warming: the 2000–2009 average was 10.1 °C, while 2016–2025 averaged 11.0 °C (+0.9 °C). The warmest year was 2024 (12.0 °C), the coldest 2005 (8.9 °C).
Records of the period: the highest daily maximum was 36.8 °C (8 August 2013), the lowest minimum -23.2 °C (1 March 2005), and the wettest day brought 53.9 mm (9 September 2024).
Current conditions: Kőszeg weather forecast · 7-day forecast · what to expect in September.
Climate table of Kőszeg
Click a month for the detailed monthly page.
| Month | Avg high | Avg low | Mean | Precip. | Wet days | Hot days | Frost days | Soil 0–7 cm |
|---|---|---|---|---|---|---|---|---|
| January | 3.3 °C | -3.3 °C | -0.2 °C | 40 mm | 9 | 0.0 | 25.1 | 0.6 °C |
| February | 5.8 °C | -2.2 °C | 1.6 °C | 38 mm | 9 | 0.0 | 20.1 | 1.7 °C |
| March | 10.1 °C | 0.5 °C | 5.4 °C | 50 mm | 10 | 0.0 | 13.2 | 5.1 °C |
| April | 15.2 °C | 5.1 °C | 10.4 °C | 50 mm | 9 | 0.0 | 2.5 | 10.3 °C |
| May | 19.2 °C | 9.7 °C | 14.8 °C | 88 mm | 14 | 0.0 | 0.0 | 14.8 °C |
| June | 23.6 °C | 14.1 °C | 19.2 °C | 84 mm | 13 | 1.8 | 0.0 | 19.2 °C |
| July | 25.5 °C | 15.9 °C | 21.0 °C | 80 mm | 13 | 4.0 | 0.0 | 21.3 °C |
| August | 25.0 °C | 15.7 °C | 20.5 °C | 87 mm | 12 | 3.7 | 0.0 | 20.9 °C |
| September | 19.9 °C | 11.4 °C | 15.6 °C | 84 mm | 11 | 0.2 | 0.0 | 16.2 °C |
| October | 14.9 °C | 6.9 °C | 10.8 °C | 61 mm | 9 | 0.0 | 0.6 | 11.3 °C |
| November | 9.0 °C | 2.6 °C | 5.6 °C | 54 mm | 9 | 0.0 | 8.0 | 6.1 °C |
| December | 4.1 °C | -1.8 °C | 1.0 °C | 44 mm | 10 | 0.0 | 22.0 | 1.6 °C |
| Year | 14.7 °C | 6.3 °C | 10.5 °C | 758 mm | 129 | 9.7 | 91.4 | 10.8 °C |
Temperature through the year
Bar: average low to average high; dot: monthly mean (°C).
Precipitation by month
Average monthly total (mm).
Warming in Kőszeg
Annual mean temperature; red: above the 2000–2025 average, blue: below.
Records
Highest temperature
36.8 °C 8 August 2013Lowest temperature
-23.2 °C 1 March 2005Wettest day
53.9 mm 9 September 2024Compared with nearby towns
| Town | Mean | Precip./year | Hot days | Frost days |
|---|---|---|---|---|
| Kőszeg | 10.5 °C | 758 mm | 10 | 91 |
| Bük | 11.5 °C | 732 mm | 19 | 77 |
| Celldömölk | 11.8 °C | 696 mm | 22 | 72 |
| Csepreg | 11.2 °C | 744 mm | 17 | 83 |
| Jánosháza | 11.8 °C | 715 mm | 21 | 74 |
| Körmend | 11.4 °C | 773 mm | 16 | 79 |
| Répcelak | 11.7 °C | 706 mm | 20 | 74 |
| Szentgotthárd | 11.2 °C | 775 mm | 15 | 85 |
| Szombathely | 11.2 °C | 751 mm | 16 | 85 |
Weather in Kőszeg by month
Frequently asked questions
What is the climate like in Kőszeg?
The mean annual temperature is 10.5 °C with about 758 mm of precipitation a year. Summers are warm (25.5 °C average high in July), winters are cold (-3.3 °C average low in January).
What is the hottest month in Kőszeg?
July, with an average temperature of 21.0 °C and highs around 25.5 °C.
What is the wettest month in Kőszeg?
May, with 88 mm on average.
What was the highest temperature ever recorded in Kőszeg?
36.8 °C on 8 August 2013 (period 2000–2025).
When is the best time to visit Kőszeg?
Pleasant daytime temperatures (18–27 °C) are typical in May, June, July, August, September.
Source: Meteon's own daily dataset built from the ERA5-Land reanalysis (Copernicus / ECMWF), 2000–2025, about 9 km grid resolution. Values describe the town's surroundings and can differ slightly from a single weather station. Hot day: maximum ≥ 30 °C; summer day: ≥ 25 °C; frost day: minimum < 0 °C; wet day: ≥ 1 mm.