May in Garmisch-Partenkirchen is the rainiest month of the year. In May, the weather in Garmisch-Partenkirchen is typically warm. Average daily high temperature in May is about 13 degrees above zero. On average, Garmisch-Partenkirchen has 23 rainy, 7 sunny, and 1 partly cloudy day in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Garmisch-Partenkirchen.