February in Sveti Vlas is the cloudiest month of the year. In February, the weather in Sveti Vlas is typically cold. Average daily high temperature in February is about 7 degrees above zero. On average, Sveti Vlas has 10 cloudy, 9 rainy, 6 sunny, and 4 partly cloudy days in February. The rains are usually moderate. February as well as January, March, and December is considered the most uncomfortable time to visit Sveti Vlas.