In December, the weather in Wiesbaden is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Wiesbaden has 11 cloudy, 10 rainy, 6 partly cloudy, 3 sunny, and 1 snowy day in December. The rains are usually moderate. December as well as January, February, March, and April is considered the most uncomfortable time to visit Wiesbaden.