Current sea water temperature:
+53.4°F
| Minimum sea water temperature in December: | 58.8°F |
| Maximum sea water temperature in December: | 45.0°F |
| Average sea water temperature in December: | 51.0°F |
| more information | |
14 days
forecast
forecast
| Sunny Beach |
monthly
weather
weather
| Sunny Beach |
Sea water temperature for the last 10 days:
| December 16 | 53.4°F | December 11 | 56.1°F |
| December 15 | 54.1°F | December 10 | 56.1°F |
| December 14 | 54.7°F | December 9 | 56.8°F |
| December 13 | 54.7°F | December 8 | 56.3°F |
| December 12 | 55.0°F | December 7 | 56.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Sunny Beach?
Based on the data about daily sea water temperature for the last three years the warmest sea in Sunny Beach was noticed in August, July and September.
Monthly Sea Temperatures in Sunny Beach, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 78.3°F. The highest and lowest sea temperatures during the month were 80.1°F and 76.3°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 80.6°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 74.7°F. The highest and lowest sea temperatures during the month were 77.4°F and 70.5°F.
current
weather
weather
| Sunny Beach |
weather in
December
December
| Sunny Beach |
Best time for vacation in Sunny Beach
Sunny Beach on a weather map
Places in Bulgaria:
Name
°F
24 Hours Forecast
Sunny Beach
Local time: 15:56
December 16, tuesday
1800
46°F
SW
4 mph
4 mph
2100
45°F
SW
4 mph
4 mph
December 17, wednesday
0000
45°F
SW
4 mph
4 mph
0300
45°F
SW
2 mph
2 mph
0600
45°F
S
0 mph
0 mph
0900
45°F
E
2 mph
2 mph
1200
50°F
N
3 mph
3 mph
1500
50°F
N
3 mph
3 mph
