January in Sevastopol is the rainiest and the coldest month of the year. In January, the weather in Sevastopol is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Sevastopol has 12 rainy, 7 sunny, 7 cloudy, and 5 partly cloudy days in January. The rains are usually moderate. January as well as February and December is considered the most uncomfortable time to visit Sevastopol.