September in Vetyu is the rainiest month of the year. In September, the weather in Vetyu is typically warm. Average daily high temperature in September is about 10 degrees above zero. On average, Vetyu has 22 rainy, 7 cloudy, and 1 sunny day in September. The rains are usually moderate. September as well as January, February, April, and May is considered the most uncomfortable time to visit Vetyu.