May in Timmins is the rainiest month of the year. In May, the weather in Timmins is typically warm. Average daily high temperature in May is about 13 degrees above zero. On average, Timmins has 19 rainy, 5 sunny, 5 cloudy, and 2 partly cloudy days in May. The rains are usually heavy. May as well as January, February, April, and October is considered the most uncomfortable time to visit Timmins.