October in Sept-Iles is the rainiest month of the year. In October, the weather in Sept-Iles is typically cold. Average daily high temperature in October is about 7 degrees above zero. On average, Sept-Iles has 14 rainy, 7 sunny, 5 cloudy, and 5 partly cloudy days in October. The rains are usually heavy. October as well as January, February, April, and May is considered the most uncomfortable time to visit Sept-Iles.