Climate of Jánossomorja
Győr-Moson-Sopron County · monthly averages, precipitation, records and warming trend
Climate of Jánossomorja in brief
Based on daily data from 2000–2025, the mean annual temperature in Jánossomorja is 11.9 °C. Summer afternoons reach 27.2 °C on average in July, while January nights fall to -2.1 °C. The area receives about 660 mm of precipitation a year, spread over 116 days with at least 1 mm.
That makes Jánossomorja the 151st warmest of 348 Hungarian towns: 0.2 °C warmer than the national town average (11.7 °C), and 25 mm drier (213th by precipitation).
A typical year brings 20 hot days (at least 30 °C), 70 summer days (at least 25 °C) and 69 frost days (minimum below 0 °C). The warmest month is July, the coldest January.
The climate is warming: the 2000–2009 average was 11.4 °C, while 2016–2025 averaged 12.4 °C (+1.0 °C). The warmest year was 2024 (13.5 °C), the coldest 2005 (10.3 °C).
Records of the period: the highest daily maximum was 37.9 °C (18 July 2007), the lowest minimum -18.8 °C (9 January 2003), and the wettest day brought 51.2 mm (7 September 2007).
Current conditions: Jánossomorja weather forecast · 7-day forecast · what to expect in September.
Climate table of Jánossomorja
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 | 3.8 °C | -2.1 °C | 0.8 °C | 42 mm | 10 | 0.0 | 21.2 | 1.4 °C |
| February | 6.5 °C | -0.8 °C | 2.7 °C | 37 mm | 9 | 0.0 | 16.2 | 2.7 °C |
| March | 11.1 °C | 2.0 °C | 6.5 °C | 44 mm | 9 | 0.0 | 9.1 | 6.3 °C |
| April | 16.5 °C | 6.7 °C | 11.8 °C | 43 mm | 8 | 0.0 | 1.0 | 11.7 °C |
| May | 20.8 °C | 11.5 °C | 16.3 °C | 72 mm | 12 | 0.3 | 0.0 | 16.4 °C |
| June | 25.2 °C | 15.9 °C | 20.8 °C | 68 mm | 10 | 4.3 | 0.0 | 21.0 °C |
| July | 27.2 °C | 17.9 °C | 22.7 °C | 66 mm | 11 | 8.1 | 0.0 | 23.3 °C |
| August | 26.7 °C | 17.4 °C | 22.1 °C | 73 mm | 10 | 7.1 | 0.0 | 22.8 °C |
| September | 21.4 °C | 13.0 °C | 17.2 °C | 74 mm | 10 | 0.5 | 0.0 | 17.9 °C |
| October | 16.0 °C | 8.5 °C | 12.1 °C | 51 mm | 9 | 0.0 | 0.3 | 12.6 °C |
| November | 9.9 °C | 4.0 °C | 6.8 °C | 48 mm | 9 | 0.0 | 5.1 | 7.3 °C |
| December | 4.7 °C | -0.5 °C | 2.0 °C | 44 mm | 9 | 0.0 | 16.4 | 2.7 °C |
| Year | 15.9 °C | 7.8 °C | 11.9 °C | 660 mm | 116 | 20.2 | 69.3 | 12.2 °C |
Temperature through the year
Bar: average low to average high; dot: monthly mean (°C).
Precipitation by month
Average monthly total (mm).
Warming in Jánossomorja
Annual mean temperature; red: above the 2000–2025 average, blue: below.
Records
Highest temperature
37.9 °C 18 July 2007Lowest temperature
-18.8 °C 9 January 2003Wettest day
51.2 mm 7 September 2007Compared with nearby towns
| Town | Mean | Precip./year | Hot days | Frost days |
|---|---|---|---|---|
| Jánossomorja | 11.9 °C | 660 mm | 20 | 69 |
| Beled | 11.8 °C | 678 mm | 21 | 72 |
| Csorna | 12.0 °C | 655 mm | 22 | 70 |
| Fertőd | 11.7 °C | 701 mm | 20 | 72 |
| Fertőszentmiklós | 11.7 °C | 701 mm | 20 | 72 |
| Győr | 11.9 °C | 665 mm | 22 | 70 |
| Kapuvár | 11.8 °C | 682 mm | 20 | 71 |
| Lébény | 12.0 °C | 657 mm | 22 | 70 |
| Mosonmagyaróvár | 11.8 °C | 678 mm | 21 | 71 |
Weather in Jánossomorja by month
Frequently asked questions
What is the climate like in Jánossomorja?
The mean annual temperature is 11.9 °C with about 660 mm of precipitation a year. Summers are warm (27.2 °C average high in July), winters are cold (-2.1 °C average low in January).
What is the hottest month in Jánossomorja?
July, with an average temperature of 22.7 °C and highs around 27.2 °C.
What is the wettest month in Jánossomorja?
September, with 74 mm on average.
What was the highest temperature ever recorded in Jánossomorja?
37.9 °C on 18 July 2007 (period 2000–2025).
When is the best time to visit Jánossomorja?
Pleasant daytime temperatures (18–27 °C) are typical in May, June, 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.