September in Korf is the rainiest month of the year. In September, the weather in Korf is typically cold. Average daily high temperature in September is about 9 degrees above zero. On average, Korf has 17 rainy, 6 sunny, 6 cloudy, and 1 partly cloudy day in September. The rains are usually heavy. September as well as January, February, March, and May is considered the most uncomfortable time to visit Korf.