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Sveti Vlas (Bulgaria) in general has a mild climate. The day temperatures range from 6 °C (42 °F) in January to 27 °C (81 °F) in August. The least rainy month in Sveti Vlas is August with its 4 days of rain, the rainiest month is June, when it rains 8 days. The highest sea temperatures in Sveti Vlas are in August with 25 °C (76 °F) and the lowest in February with 6 °C (44 °F). The highest night temperatures could be experienced in July with 18 °C (64 °F), the lowest in February with -1 °C (30 °F).
The best months to visit Sveti Vlas are July - August. During this period, temperatures are between 27 °C (81 °F) - 27 °C (81 °F), night temperatures are between 18 °C (64 °F) - 18 °C (64 °F), rainfall averages 5 days per month, and 10 hours of sunlight on average. The sea temperature for this period ranges from 24 °C (74 °F) to 25 °C (76 °F).
The period, with low amounts of rain in Sveti Vlas - dry season - lasts from July to August. In this period it is raining on average 5 days and approximately 34 mm (1.34 in) precipitation falls per month, which are values below average.
The hottest month in Sveti Vlas is August with a temperature of 27 °C (81 °F). The period with the highest daytime temperatures is in Sveti Vlas during July - August. The temperatures range at this time between 27 °C (81 °F) - 27 °C (81 °F).
The warmest sea is in Sveti Vlas between July - August. During these months the sea temperature reaches 24 °C (74 °F) - 25 °C (76 °F).
The highest night temperatures in Sveti Vlas occur in the months of June - August. During this time the night temperatures are between 15 °C (59 °F) - 18 °C (64 °F).
Yes, it is likely to be freezing at night in Sveti Vlas in the months of December - March.
Sveti Vlas belongs to destinations with lower humidity. It ranges from 72 % to 82 %. The most humid months are December - March and the least humid are June - September.
The period, which is the sunniest in Sveti Vlas, is in the months of June - August, when there is an average of 9 sun hours per day.
Sveti Vlas is a destination with rather light or moderate winds. The wind blows the most in November - January and the least in April - July.
The least cloudy months in Sveti Vlas are July - September, when the cloud cover is on average only 35 %.