May in Sainte-Foy is the rainiest month of the year. In May, the weather in Sainte-Foy is typically warm. Average daily high temperature in May is about 15 degrees above zero. On average, Sainte-Foy has 17 rainy, 7 sunny, 5 partly cloudy, and 2 cloudy days in May. The rains are usually moderate. May as well as January, April, October, and November is considered the most uncomfortable time to visit Sainte-Foy.