May in Oktyabr is the rainiest month of the year. In May, the weather in Oktyabr is typically warm. Average daily high temperature in May is about 20 degrees above zero. On average, Oktyabr has 20 rainy, 9 sunny, and 2 partly cloudy days in May. The rains are usually heavy. May as well as February, March, and December is considered the most uncomfortable time to visit Oktyabr.