22.12
mon
mon
Day
50°F
S 8 mph
Precip.
0%
0%
Night
48°F
SW 9 mph
Precip.
70%
70%
23.12
tue
tue
Day
48°F
SW 4 mph
Precip.
0%
0%
Night
48°F
W 4 mph
Precip.
0%
0%
24.12
wed
wed
Day
52°F
W 9 mph
Precip.
100%
100%
Night
50°F
W 19 mph
Precip.
64%
64%
25.12
thu
thu
Day
48°F
W 20 mph
Precip.
100%
100%
Night
43°F
SW 13 mph
Precip.
0%
0%
26.12
fri
fri
Day
43°F
E 6 mph
Precip.
0%
0%
Night
39°F
N 9 mph
Precip.
0%
0%
27.12
sat
sat
Day
37°F
S 17 mph
Precip.
43%
43%
Night
34°F
SE 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
41°F
E 11 mph
Precip.
0%
0%
Night
37°F
SE 9 mph
Precip.
0%
0%
sea water
temperature
temperature
| Sveti Vlas |
monthly
weather
weather
| Sveti Vlas |
current
weather
weather
| Sveti Vlas |
14 days
forecast
forecast
| Sveti Vlas |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 55.4°F. The highest and lowest sea temperatures during the month were 59.0°F and 52.5°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 47.4°F. The highest and lowest sea temperatures during the month were 48.9°F and 45.7°F.
Air temperature in Sveti Vlas, °F
Precipitation total in Sveti Vlas, in.
* Charts above show average data for the last 3 years.
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: 12:30
December 22, monday
1500
50°F
SW
7 mph
7 mph
1800
50°F
SW
9 mph
9 mph
2100
48°F
SW
9 mph
9 mph
December 23, tuesday
0000
48°F
SW
9 mph
9 mph
0300
48°F
SW
7 mph
7 mph
0600
46°F
SW
5 mph
5 mph
0900
46°F
SW
4 mph
4 mph
1200
48°F
SW
4 mph
4 mph
