In August, the weather in Chibougamau is typically warm. Average daily high temperature in August is about 18 degrees above zero. On average, Chibougamau has 20 rainy, 4 sunny, 4 cloudy, and 3 partly cloudy days in August. The rains are usually heavy. August as well as January, February, April, and May is considered the most uncomfortable time to visit Chibougamau.