October in Eastmain is the rainiest month of the year. In October, the weather in Eastmain is typically cold. Average daily high temperature in October is about 6 degrees above zero. On average, Eastmain has 27 rainy, 2 sunny, and 2 cloudy days in October. The rains are usually heavy. October as well as January, February, May, and September is considered the most uncomfortable time to visit Eastmain.