May in Ratta is the rainiest month of the year. In May, the weather in Ratta is typically cold. Average daily high temperature in May is about 4 degrees above zero. On average, Ratta has 23 rainy, 7 cloudy, and 1 snowy day in May. The rains are usually moderate. May as well as January, February, September, and November is considered the most uncomfortable time to visit Ratta.