15.09
tue
tue
Day
73°F
SW 7 mph
Precip.
10%
10%
Night
63°F
S 2 mph
Precip.
7%
7%
16.09
wed
wed
Day
73°F
SW 9 mph
Precip.
1%
1%
Night
63°F
S 4 mph
Precip.
5%
5%
17.09
thu
thu
Day
72°F
SW 11 mph
Precip.
1%
1%
Night
63°F
S 2 mph
Precip.
9%
9%
18.09
fri
fri
Day
73°F
NW 6 mph
Precip.
1%
1%
Night
64°F
N 1 mph
Precip.
6%
6%
19.09
sat
sat
Day
77°F
NW 7 mph
Precip.
1%
1%
Night
64°F
W 2 mph
Precip.
22%
22%
20.09
sun
sun
Day
77°F
W 8 mph
Precip.
9%
9%
Night
64°F
S 3 mph
Precip.
15%
15%
21.09
mon
mon
Day
81°F
S 2 mph
Precip.
1%
1%
Night
68°F
E 4 mph
Precip.
4%
4%
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 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.
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: 06:30
September 15, tuesday
0900
66°F
S
4 mph
4 mph
1200
73°F
SW
7 mph
7 mph
1500
73°F
W
11 mph
11 mph
1800
70°F
W
7 mph
7 mph
2100
64°F
SW
4 mph
4 mph
September 16, wednesday
0000
63°F
S
2 mph
2 mph
0300
61°F
S
4 mph
4 mph
0600
59°F
S
5 mph
5 mph
