About Gersau
Gersau is a Swiss municipality located in the canton of Schwyz (SZ), at 47.026° latitude and 8.519° longitude. The municipality is part of the central Alps, pronounced alpine climate with heavy winter snowfall. Also known as Gersau, Gersau benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Gersau
The climate in Gersau is characteristic of the central Alps, pronounced alpine climate with heavy winter snowfall. 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 Gersau and neighboring municipalities.
On this page you will find the detailed weather forecast for Gersau: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Gersau: 1991–2020 normals
In Gersau (863 m), the mean annual temperature is 8.0 °C. The warmest month is July (17.1 °C on average) and the coldest January (−0.9 °C). About 1274 mm of precipitation falls per year, peaking in August (165 mm) with a minimum in February (62 mm). The mean monthly maximum reaches 29.5 °C and the absolute minimum −10.0 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) |
|---|---|---|---|---|
| Jan | −0.9 °C | 10.5 °C | −10.0 °C | 64 |
| Feb | −0.1 °C | 11.7 °C | −9.8 °C | 62 |
| Mar | 3.8 °C | 17.0 °C | −6.7 °C | 73 |
| Apr | 7.8 °C | 21.1 °C | −3.4 °C | 93 |
| May | 11.9 °C | 25.4 °C | 1.1 °C | 141 |
| Jun | 15.4 °C | 28.8 °C | 5.2 °C | 155 |
| Jul | 17.1 °C | 29.5 °C | 7.6 °C | 158 |
| Aug | 16.6 °C | 28.7 °C | 6.8 °C | 165 |
| Sep | 12.6 °C | 24.2 °C | 3.1 °C | 109 |
| Oct | 8.3 °C | 20.1 °C | −1.4 °C | 90 |
| Nov | 3.1 °C | 15.0 °C | −6.0 °C | 80 |
| Dec | −0.2 °C | 11.2 °C | −9.8 °C | 84 |
| Year | 8.0 °C | 29.5 °C | −10.0 °C | 1274 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Luzern (17 km, 454 m), Altdorf (17 km, 438 m), Cham (18 km, 443 m), adjusted to the elevation of Gersau (863 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Gersau:
- Weather Vitznau
- Weather Lauerz
- Weather Steinerberg
- Weather Ingenbohl
- Weather Greppen
- Weather Weggis
- Weather Arth
- Weather Seelisberg
- Weather Steinen
- Weather Walchwil
- Weather Emmetten
- Weather Küssnacht (SZ)
→ Nearby cities · Canton Schwyz
Frequently asked questions about weather in Gersau
What is the weather in Gersau today?
At the top of the page you will find the current temperature, precipitation and wind in Gersau, updated in real time.
What is the 15-day forecast for Gersau?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Gersau.
Will it rain tomorrow in Gersau?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Gersau.
What is the air quality in Gersau?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Gersau.
Are there weather alerts for Gersau?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Gersau located?
Gersau sits at around 863 m above sea level in the canton of Schwyz. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Gersau?
The warmest month in Gersau is July, averaging 17.1 °C (1991–2020 normal). The coldest is January at −0.9 °C.
How much does it rain in Gersau per year?
Gersau receives about 1274 mm of precipitation a year. The wettest month is August (165 mm), the driest February (62 mm).
When is the best time to visit Gersau?
For warmth and sunshine: July (17.1 °C on average, — h of sun). The coldest month is January (−0.9 °C). Check the 15-day forecast above for your dates.