January in Sept-Iles is the most freezing month of the year. In January, the weather in Sept-Iles is typically freezing. Average daily high temperature in January is about 9 degrees below zero. On average, Sept-Iles has 10 snowy, 8 cloudy, 7 partly cloudy, and 6 sunny days in January. The snowfalls are usually moderate. January as well as February, April, May, and October is considered the most uncomfortable time to visit Sept-Iles.