May in Sumon Chal-Kezhig is the windiest month of the year. In May, the weather in Sumon Chal-Kezhig is typically warm. Average daily high temperature in May is about 12 degrees above zero. On average, Sumon Chal-Kezhig has 12 partly cloudy, 9 rainy, 7 sunny, and 3 cloudy days in May. The rains are usually moderate.