May in Klatovy is the rainiest month of the year. In May, the weather in Klatovy is typically warm. Average daily high temperature in May is about 18 degrees above zero. On average, Klatovy has 15 rainy, 6 cloudy, 5 sunny, and 5 partly cloudy days in May. The rains are usually moderate. May as well as January, February, March, and April is considered the most uncomfortable time to visit Klatovy.