About Gossau (SG)
Gossau (SG) is a Swiss municipality located in the canton of St. Gallen (SG), at 47.405° latitude and 9.289° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Gossau (SG), Gossau (SG) benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Gossau (SG)
The climate in Gossau (SG) 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 Gossau (SG) and neighboring municipalities.
On this page you will find the detailed weather forecast for Gossau (SG): current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Gossau (SG): 1991–2020 normals
In Gossau (SG) (660 m), the mean annual temperature is 9.2 °C. The warmest month is July (17.9 °C on average) and the coldest January (1.0 °C). About 1441 mm of precipitation falls per year, peaking in August (171 mm) with a minimum in February (78 mm). The sun shines for about 1589 hours a year, mostly in July (222 h). On average there are 92 frost days and 2 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 29.4 °C and the absolute minimum −9.7 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 1.0 °C | 12.7 °C | −9.7 °C | 87 | 56 | 22 | 0 |
| Feb | 1.5 °C | 13.3 °C | −9.2 °C | 78 | 79 | 19 | 0 |
| Mar | 4.8 °C | 17.0 °C | −5.8 °C | 99 | 130 | 13 | 0 |
| Apr | 8.4 °C | 20.7 °C | −2.2 °C | 99 | 165 | 6 | 0 |
| May | 12.5 °C | 25.0 °C | 2.5 °C | 146 | 182 | 0 | 2 |
| Jun | 16.0 °C | 28.2 °C | 6.3 °C | 158 | 196 | 0 | 6 |
| Jul | 17.9 °C | 29.4 °C | 9.0 °C | 165 | 222 | 0 | 9 |
| Aug | 17.7 °C | 28.9 °C | 8.4 °C | 171 | 204 | 0 | 8 |
| Sep | 13.7 °C | 24.5 °C | 4.7 °C | 130 | 150 | 0 | 1 |
| Oct | 9.9 °C | 21.4 °C | 0.3 °C | 103 | 100 | 2 | 0 |
| Nov | 5.0 °C | 17.3 °C | −4.5 °C | 96 | 58 | 10 | 0 |
| Dec | 2.0 °C | 13.4 °C | −8.4 °C | 107 | 47 | 20 | 0 |
| Year | 9.2 °C | 29.4 °C | −9.7 °C | 1441 | 1589 | 92 | 25 |
Source: MeteoSwiss open data (1991–2020 normals) — stations St. Gallen (9 km, 776 m), Säntis (18 km, 2501 m), Ebnat-Kappel (20 km, 623 m), adjusted to the elevation of Gossau (SG) (660 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Gossau (SG):
- Weather Herisau
- Weather Stein (AR)
- Weather Gaiserwald
- Weather Andwil (SG)
- Weather Schwellbrunn
- Weather Waldstatt
- Weather Flawil
- Weather St. Gallen
- Weather Niederbüren
- Weather Waldkirch
- Weather Teufen (AR)
- Weather Hundwil
→ Nearby cities · Canton St. Gallen
Frequently asked questions about weather in Gossau (SG)
What is the weather in Gossau (SG) today?
At the top of the page you will find the current temperature, precipitation and wind in Gossau (SG), updated in real time.
What is the 15-day forecast for Gossau (SG)?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Gossau (SG).
Will it rain tomorrow in Gossau (SG)?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Gossau (SG).
What is the air quality in Gossau (SG)?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Gossau (SG).
Are there weather alerts for Gossau (SG)?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Gossau (SG) located?
Gossau (SG) sits at around 660 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 Gossau (SG)?
The warmest month in Gossau (SG) is July, averaging 17.9 °C (1991–2020 normal). The coldest is January at 1.0 °C.
How much does it rain in Gossau (SG) per year?
Gossau (SG) receives about 1441 mm of precipitation a year. The wettest month is August (171 mm), the driest February (78 mm).
When is the best time to visit Gossau (SG)?
For warmth and sunshine: July (17.9 °C on average, 222 h of sun). The coldest month is January (1.0 °C). Check the 15-day forecast above for your dates.