In May, the weather in Wemindji is typically cold. Average daily high temperature in May is about 7 degrees above zero. On average, Wemindji has 11 rainy, 9 cloudy, 6 sunny, and 5 partly cloudy days in May. The rains are usually moderate. May as well as January, February, September, and October is considered the most uncomfortable time to visit Wemindji.