January in Stuttgart is the cloudiest and the coldest month of the year. In January, the weather in Stuttgart is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, Stuttgart has 14 cloudy, 11 rainy, 4 sunny, and 2 partly cloudy days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Stuttgart.