Average humidity in Herisau
The mean monthly relative humidity over the year in Herisau (St.Gallen Canton), Switzerland.
- On average, November is the most humid month, at 82.0%.
- On average, April is the least humid month, at 68.0%.
- The average annual percentage of humidity is 75%.
Forecast for Herisau
overcast and snow
almost clear and no rain
partly cloudy and no rain