In December, the weather in Waldshut-Tiengen is typically cold. Average daily high temperature in December is about 1 degree above zero. On average, Waldshut-Tiengen has 21 rainy, 5 snowy, 3 sunny, and 2 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Waldshut-Tiengen.