In May, the weather in Chibougamau is typically warm. Average daily high temperature in May is about 11 degrees above zero. On average, Chibougamau has 19 rainy, 5 cloudy, 4 sunny, and 3 partly cloudy days in May. The rains are usually moderate. May as well as January, February, April, and August is considered the most uncomfortable time to visit Chibougamau.