September in Gaz-Sale is the rainiest month of the year. In September, the weather in Gaz-Sale is typically cold. Average daily high temperature in September is about 7 degrees above zero. On average, Gaz-Sale has 20 rainy, 8 cloudy, and 2 sunny days in September. The rains are usually moderate. September as well as January, February, March, and May is considered the most uncomfortable time to visit Gaz-Sale.