January in Wiesbaden is the coldest month of the year. In January, the weather in Wiesbaden is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, Wiesbaden has 17 cloudy, 10 rainy, and 4 sunny days in January. The rains are usually light. January as well as February, November, and December is considered the most uncomfortable time to visit Wiesbaden.