About Herisau, Appenzell Ausserrhoden

Herisau is a city of approximately 15,700 people in Appenzell Ausserrhoden, Switzerland. Located in the Europe/Zurich time zone at 47.4°N latitude.

Recent weather here gives a sense of typical conditions: in 2025, Herisau recorded a mean annual temperature of 48°F, ranging from 9°F lows in November to 86°F highs in July, with about 52 inches of precipitation across the year.