About Rorschach
Rorschach is a Swiss municipality located in the canton of St. Gallen (SG), at 47.475° latitude and 9.494° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Rorschach, Rorschach benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Rorschach
The climate in Rorschach 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 Rorschach and neighboring municipalities.
On this page you will find the detailed weather forecast for Rorschach: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Rorschach: 1991–2020 normals
In Rorschach (413 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.3 °C on average) and the coldest January (1.4 °C). About 1191 mm of precipitation falls per year, peaking in August (152 mm) with a minimum in February (55 mm). The sun shines for about 1718 hours a year, mostly in July (246 h). On average there are 78 frost days and 6 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.1 °C and the absolute minimum −8.9 °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 | 1.4 °C | 12.8 °C | −8.9 °C | 58 | 47 | 20 | 0 |
| Feb | 2.2 °C | 14.2 °C | −7.9 °C | 55 | 79 | 18 | 0 |
| Mar | 5.8 °C | 18.8 °C | −4.8 °C | 72 | 147 | 12 | 0 |
| Apr | 9.8 °C | 23.0 °C | −1.4 °C | 85 | 189 | 3 | 0 |
| May | 14.1 °C | 27.2 °C | 3.6 °C | 130 | 209 | 0 | 3 |
| Jun | 17.7 °C | 30.1 °C | 7.6 °C | 141 | 226 | 0 | 10 |
| Jul | 19.3 °C | 31.1 °C | 10.0 °C | 144 | 246 | 0 | 14 |
| Aug | 18.9 °C | 30.2 °C | 9.4 °C | 152 | 224 | 0 | 12 |
| Sep | 14.7 °C | 25.6 °C | 5.6 °C | 112 | 163 | 0 | 2 |
| Oct | 10.6 °C | 22.2 °C | 1.4 °C | 88 | 97 | 1 | 0 |
| Nov | 5.5 °C | 17.8 °C | −3.9 °C | 78 | 51 | 8 | 0 |
| Dec | 2.4 °C | 14.5 °C | −7.4 °C | 78 | 40 | 17 | 0 |
| Year | 10.2 °C | 31.1 °C | −8.9 °C | 1191 | 1718 | 78 | 42 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Altenrhein (6 km, 398 m), St. Gallen (9 km, 776 m), Güttingen (21 km, 440 m), adjusted to the elevation of Rorschach (413 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Rorschach:
- Weather Goldach
- Weather Rorschacherberg
- Weather Thal
- Weather Horn
- Weather Lutzenberg
- Weather Heiden
- Weather Tübach
- Weather Untereggen
- Weather Mörschwil
- Weather Grub (AR)
- Weather Eggersriet
- Weather Rehetobel
→ Nearby cities · Canton St. Gallen
Frequently asked questions about weather in Rorschach
What is the weather in Rorschach today?
At the top of the page you will find the current temperature, precipitation and wind in Rorschach, updated in real time.
What is the 15-day forecast for Rorschach?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Rorschach.
Will it rain tomorrow in Rorschach?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Rorschach.
What is the air quality in Rorschach?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Rorschach.
Are there weather alerts for Rorschach?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Rorschach located?
Rorschach sits at around 413 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 Rorschach?
The warmest month in Rorschach is July, averaging 19.3 °C (1991–2020 normal). The coldest is January at 1.4 °C.
How much does it rain in Rorschach per year?
Rorschach receives about 1191 mm of precipitation a year. The wettest month is August (152 mm), the driest February (55 mm).
When is the best time to visit Rorschach?
For warmth and sunshine: July (19.3 °C on average, 246 h of sun). The coldest month is January (1.4 °C). Check the 15-day forecast above for your dates.