World Resorts Bulgaria St Constantine and Helena Weather

St Constantine and Helena sea water temperature

Current sea water temperature:
+58.1°F
Minimum sea water temperature in December: 59.2°F
Maximum sea water temperature in December: 43.7°F
Average sea water temperature in December: 50.2°F
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Sea water temperature for the last 10 days:

December 4 58.1°F November 29 59.7°F
December 3 58.3°F November 28 59.7°F
December 2 58.8°F November 27 59.2°F
December 1 59.2°F November 26 59.0°F
November 30 59.5°F November 25 59.5°F

When is the warmest sea in St Constantine and Helena?

Based on the data about daily sea water temperature for the last three years the warmest sea in St Constantine and Helena was noticed in August, July and September.

Monthly Sea Temperatures in St Constantine and Helena, °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 79.9°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 76.9°F. The highest and lowest sea temperatures during the month were 80.8°F and 73.0°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 69.8°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

Current weather
05:00
St Constantine and Helena
+54°F
W 14 mph
Feels like: +50°F
Precip.: 100%
Places in Bulgaria:
Name
°F
Bansko
+30°F
Burgas
+54°F
Byala
+54°F
Varna
+54°F
Elenite
+54°F
Golden Sands
+55°F
Nesebr
+54°F
Obzor
+54°F
Pomorie
+54°F
Ravda
+54°F
Sveti Vlas
+54°F
Sozopol
+54°F
Sunny Beach
+54°F
Sofia
+43°F
Chernomorets
+54°F
all places
24 Hours Forecast
St Constantine and Helena
Local time: 05:00
December 05, friday
0600
54°F
W
14 mph
0900
55°F
W
16 mph
1200
55°F
W
19 mph
1500
55°F
W
21 mph
1800
54°F
SW
22 mph
2100
54°F
W
21 mph
December 06, saturday
0000
54°F
SW
22 mph
0300
54°F
SW
21 mph
Units of measurement: °C / °F