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March in Sveti Vlas typically sees daytime highs of 11°C (52°F) and nighttime lows of 5°C (41°F). Expect some rainfall during the month.
If you prefer enjoying temperate temperatures and rain-free days, May, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Sveti Vlas - and find the best time to visit.
49-year average (1976-2025)
Based on our historical records, temperatures in Sveti Vlas typically rise from around 10°C (50°F) at the start of March to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 5°C (41°F).
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Sveti Vlas spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 29 years of weather records for Sveti Vlas, the following extremes were recorded between 1997 and 2026.
Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in March →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for changing conditions in Sveti Vlas in March. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. The water temperature sits at about 8°C (46°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Sveti Vlas climate overview or explore weather in Bulgaria.
Where to go in March - average daytime high across popular destinations.
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