May in Orto-Surt is the rainiest month of the year. In May, the weather in Orto-Surt is typically cold. Average daily high temperature in May is about 9 degrees above zero. On average, Orto-Surt has 14 rainy, 9 cloudy, 4 sunny, and 4 partly cloudy days in May. The rains are usually moderate. May as well as January, February, March, and September is considered the most uncomfortable time to visit Orto-Surt.