Climate in Herisau (St.Gallen Canton), Switzerland

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Herisau, Switzerland

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Herisau, Switzerland

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* Data from: St. Gallen, Switzerland (8 KM, 5 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Herisau, Switzerland

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* Data from: St. Gallen, Switzerland (8 KM, 5 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Herisau, Switzerland

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Herisau, Switzerland

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Herisau, Switzerland

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* Data from: St. Gallen, Switzerland (8 KM, 5 Miles).

Weather Forecasts for Herisau

Fri   Feb 23
6°C | 1°C
SW 11 km/h
4.4 mm
broken clouds and sleet

broken clouds and sleet

Sat   Feb 24
5°C | 1°C
W 7 km/h
1.1 mm
broken clouds and small chance of sleet

broken clouds and small chance of sleet

Sun   Feb 25
8°C | 1°C
SE 7 km/h
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Herisau in Switzerland

During the months of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is the rainy season in Herisau?
    Rainy season in Herisau occurs in the months of May, June, July, August and September.
  • Which is the warmest month in Herisau?
    July has an average maximum temperature of 23°C and is the warmest month of the year.
  • Which is the coldest month in Herisau?
    The coldest month is January with an average maximum temperature of 4°C.
  • Which is the wettest month in Herisau?
    June tops the wettest month list with 218 mm of rainfall.
  • Which is the driest month in Herisau?
    January is the driest month with 106 mm of precipitation.
  • Which is the sunniest month in Herisau?
    July is the sunniest month with an average of 229 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.