About Widnau
Widnau is a Swiss municipality located in the canton of St. Gallen (SG), at 47.405° latitude and 9.625° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Widnau, Widnau benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Widnau
The climate in Widnau is characteristic of the eastern Alps, alpine climate with snowy winters and cool summers. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Widnau and neighboring municipalities.
On this page you will find the detailed weather forecast for Widnau: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Widnau: 1991–2020 normals
In Widnau (407 m), the mean annual temperature is 10.3 °C. The warmest month is July (19.2 °C on average) and the coldest January (1.7 °C). About 1366 mm of precipitation falls per year, peaking in August (160 mm) with a minimum in February (77 mm). On average there are 78 frost days and 6 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 30.8 °C and the absolute minimum −8.7 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Frost days | Summer days |
|---|---|---|---|---|---|---|
| Jan | 1.7 °C | 12.9 °C | −8.7 °C | 87 | 20 | 0 |
| Feb | 2.4 °C | 14.3 °C | −7.8 °C | 77 | 18 | 0 |
| Mar | 5.8 °C | 18.6 °C | −4.8 °C | 97 | 12 | 0 |
| Apr | 9.7 °C | 22.5 °C | −1.5 °C | 93 | 3 | 0 |
| May | 14.0 °C | 26.8 °C | 3.6 °C | 135 | 0 | 3 |
| Jun | 17.6 °C | 29.8 °C | 7.6 °C | 146 | 0 | 10 |
| Jul | 19.2 °C | 30.8 °C | 10.0 °C | 155 | 0 | 14 |
| Aug | 18.9 °C | 30.0 °C | 9.4 °C | 160 | 0 | 12 |
| Sep | 14.8 °C | 25.5 °C | 5.6 °C | 121 | 0 | 2 |
| Oct | 10.8 °C | 22.3 °C | 1.5 °C | 98 | 1 | 0 |
| Nov | 5.8 °C | 17.9 °C | −3.8 °C | 92 | 8 | 0 |
| Dec | 2.7 °C | 14.7 °C | −7.2 °C | 106 | 17 | 0 |
| Year | 10.3 °C | 30.8 °C | −8.7 °C | 1366 | 78 | 42 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Altenrhein (10 km, 398 m), St. Gallen (17 km, 776 m), Säntis (27 km, 2501 m), adjusted to the elevation of Widnau (407 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Widnau:
- Weather Balgach
- Weather Diepoldsau
- Weather Berneck
- Weather Au (SG)
- Weather Oberriet (SG)
- Weather Marbach (SG)
- Weather Rebstein
- Weather Reute (AR)
- Weather Walzenhausen
- Weather Oberegg
- Weather Wolfhalden
- Weather St. Margrethen
→ Nearby cities · Canton St. Gallen
Frequently asked questions about weather in Widnau
What is the weather in Widnau today?
At the top of the page you will find the current temperature, precipitation and wind in Widnau, updated in real time.
What is the 15-day forecast for Widnau?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Widnau.
Will it rain tomorrow in Widnau?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Widnau.
What is the air quality in Widnau?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Widnau.
Are there weather alerts for Widnau?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Widnau located?
Widnau sits at around 407 m above sea level in the canton of St. Gallen. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Widnau?
The warmest month in Widnau is July, averaging 19.2 °C (1991–2020 normal). The coldest is January at 1.7 °C.
How much does it rain in Widnau per year?
Widnau receives about 1366 mm of precipitation a year. The wettest month is August (160 mm), the driest February (77 mm).
When is the best time to visit Widnau?
For warmth and sunshine: July (19.2 °C on average, — h of sun). The coldest month is January (1.7 °C). Check the 15-day forecast above for your dates.