The peculiarity of Sveti Vlas resort is the unique combination of sea and mountain climate. The fact is that it is at the borders of the town that the Stara Planina range ends and the mountain air gently mixes with the sea air. It is this combination that makes the resort attractive for people suffering from respiratory system diseases.
The weather in Sveti Vlas is almost always pleasant for tourists. The average air temperature in summer is +27°C. There are 240 to 260 sunny days a year in St. Vlas, and fog is a rare phenomenon.