Sveti Vlas Weather & Climate: Best Time to Visit

Visitors to Sveti Vlas can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in August, the warmest time of the year, to a chilly 7°C (45°F) during cooler months like January.

At night, you can expect temperatures ranging from 21°C (70°F) in August to around 2°C (36°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Sveti Vlas experiences moderate precipitation patterns, averaging 645 mm (25 in) yearly. While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 67 mm (2.6 in) of precipitation, spread over 5 rainy days.

In contrast, the driest month August experiences a drier climate, with about 33 mm (1.3 in) of rainfall spread across 4 rainy days. For more details, please visit our Sveti Vlas Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Sveti Vlas. While July receives considerable daily sunshine with up to 11.9 hours, January marks the darkest time of the year, where sunshine is scarce with only 3.1 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The mean water temperature over the year ranges from 7°C (45°F) in February to 27°C (81°F) in August.

Water temperature over the year

The relative humidity is high throughout the year in Sveti Vlas.

The city experiences its highest humidity in January, reaching 82%. In July, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year