World Resorts Bulgaria St Constantine and Helena Weather

St Constantine and Helena Sea Temperature in December

Average sea water temperature in December:
+50.3°F
Minimum sea water temperature in December: 59.2°F
Maximum sea water temperature in December: 43.7°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 55.2°F. The highest and lowest sea temperatures during the month were 59.2°F and 52.0°F.

Monthly sea water temperature in St Constantine and Helena, °F

Which Bulgaria resorts have warmest sea in December?

Place name December 2025 December 2024
Rezovo 57.5°F 53.2°F
Ahtopol 57.1°F 53.0°F
Sinemorets 56.9°F 52.8°F
Sozopol 56.7°F 52.5°F
Lovenets 56.7°F 52.8°F
Primorsko 56.7°F 52.7°F
Tsarevo 56.7°F 52.8°F
Duni 56.7°F 52.5°F
Kiten 56.5°F 52.6°F
Pomorie 56.2°F 51.9°F
Chernomorets 56.1°F 51.8°F
Ravda 55.9°F 51.9°F
Elenite 55.9°F 51.9°F
Sarafovo 55.8°F 51.1°F
Sveti Vlas 55.7°F 51.8°F
Sunny Beach 55.6°F 51.6°F
Nesebr 55.6°F 51.6°F
Burgas 55.5°F 50.8°F
Obzor 55.4°F 51.6°F
Kraymorie 55.4°F 50.7°F

Best time for vacation in St Constantine and Helena

Sunniest months:
August 27 days
July 25 days
September 22 days
Warmest months:
August 83.1 °F
July 82.6 °F
June 76.7 °F
Warmest sea temp:
August 78.1 °F
July 76.8 °F
September 74.0 °F
Coldest months:
January 42.0 °F
February 44.6 °F
December 46.0 °F
Rainiest months:
June 4 days
May 4 days
January 3 days
Windiest months:
February 11.6 mph
December 11.3 mph
January 11.3 mph

St Constantine and Helena on a weather map

St Constantine and Helena
+50°F
SW 6 mph
Feels like: +48°F
Precip.: 0%
Places in Bulgaria:
Name
°F
+37°F
+50°F
+48°F
+50°F
+50°F
+50°F
+50°F
+50°F
+50°F
+48°F
+50°F
+50°F
+50°F
+46°F
+48°F
24 Hours Forecast
St Constantine and Helena
Local time: 12:42
December 20, saturday
1500
50°F
SW
7 mph
1800
46°F
SW
6 mph
2100
48°F
SW
6 mph
December 21, sunday
0000
46°F
S
5 mph
0300
45°F
S
6 mph
0600
46°F
S
5 mph
0900
48°F
S
5 mph
1200
50°F
SW
7 mph
Units of measurement: °C / °F