Current sea water temperature:
+53.1°F
| Minimum sea water temperature in December: | 59.0°F |
| Maximum sea water temperature in December: | 45.0°F |
| Average sea water temperature in December: | 51.1°F |
| more information | |
14 days
forecast
forecast
| Sveti Vlas |
monthly
weather
weather
| Sveti Vlas |
Sea water temperature for the last 10 days:
| December 18 | 53.1°F | December 13 | 54.7°F |
| December 17 | 53.2°F | December 12 | 55.0°F |
| December 16 | 53.8°F | December 11 | 56.1°F |
| December 15 | 54.3°F | December 10 | 56.1°F |
| December 14 | 54.7°F | December 9 | 56.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Sveti Vlas?
Based on the data about daily sea water temperature for the last three years the warmest sea in Sveti Vlas was noticed in August, July and September.
Monthly Sea Temperatures in Sveti Vlas, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 78.4°F. The highest and lowest sea temperatures during the month were 80.1°F and 76.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 77.2°F. The highest and lowest sea temperatures during the month were 80.4°F and 74.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 74.9°F. The highest and lowest sea temperatures during the month were 77.4°F and 70.7°F.
current
weather
weather
| Sveti Vlas |
weather in
December
December
| Sveti Vlas |
Best time for vacation in Sveti Vlas
Sveti Vlas on a weather map
Places in Bulgaria:
Name
°F
24 Hours Forecast
Sveti Vlas
Local time: 18:38
December 18, thursday
2100
50°F
E
4 mph
4 mph
December 19, friday
0000
48°F
SE
4 mph
4 mph
0300
48°F
SE
2 mph
2 mph
0600
46°F
SE
2 mph
2 mph
0900
46°F
SW
2 mph
2 mph
1200
52°F
SW
2 mph
2 mph
1500
54°F
SW
5 mph
5 mph
1800
48°F
SW
6 mph
6 mph
