May in Niya is the rainiest and the windiest month of the year. In May, the weather in Niya is typically cold. Average daily high temperature in May is about 9 degrees above zero. On average, Niya has 23 rainy, 5 cloudy, and 3 sunny days in May. The rains are usually moderate. May as well as January, February, April, and September is considered the most uncomfortable time to visit Niya.