May in Neftegorsk is the rainiest month of the year. In May, the weather in Neftegorsk is typically warm. Average daily high temperature in May is about 17 degrees above zero. On average, Neftegorsk has 21 rainy and 10 sunny days in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Neftegorsk.