May in Kustur is the snowiest month of the year. In May, the weather in Kustur is typically cold. Average daily high temperature in May is about 2 degrees above zero. On average, Kustur has 13 cloudy, 8 rainy, 7 snowy, 2 sunny, and 1 partly cloudy day in May. The rains are usually light. May as well as January, February, March, and October is considered the most uncomfortable time to visit Kustur.