In May, the weather in Attawapiskat is typically cold. Average daily high temperature in May is about 7 degrees above zero. On average, Attawapiskat has 13 cloudy, 12 rainy, 4 sunny, and 2 partly cloudy days in May. The rains are usually moderate. May as well as January, February, March, and October is considered the most uncomfortable time to visit Attawapiskat.