December in Triesenberg is the windiest month of the year. In December, the weather in Triesenberg is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Triesenberg has 10 sunny, 10 partly cloudy, 6 rainy, and 5 snowy days in December. The rains are usually moderate. December as well as March, April, May, and June is considered the most uncomfortable time to visit Triesenberg.