September in Iqaluit is the cloudiest month of the year. In September, the weather in Iqaluit is typically cold. Average daily high temperature in September is about 4 degrees above zero. On average, Iqaluit has 16 cloudy, 6 rainy, 4 sunny, and 4 partly cloudy days in September. The rains are usually light. September as well as January, February, March, and December is considered the most uncomfortable time to visit Iqaluit.