April in Sevastopol is the windiest and the sunniest month of the year. In April, the weather in Sevastopol is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Sevastopol has 11 sunny, 10 partly cloudy, 5 rainy, 3 cloudy, and 1 snowy day in April. The rains are usually light.