In September, the weather in Viluchinsk is typically warm. Average daily high temperature in September is about 13 degrees above zero. On average, Viluchinsk has 12 rainy, 7 sunny, 7 partly cloudy, and 4 cloudy days in September. The rains are usually heavy. September as well as January, April, May, and June is considered the most uncomfortable time to visit Viluchinsk.