May in Oktyabrskiy is the rainiest month of the year. In May, the weather in Oktyabrskiy is typically warm. Average daily high temperature in May is about 13 degrees above zero. On average, Oktyabrskiy has 20 rainy, 6 sunny, 4 partly cloudy, and 1 cloudy day in May. The rains are usually moderate. May as well as January, February, April, and September is considered the most uncomfortable time to visit Oktyabrskiy.