Measurements:
°C
°F
St Constantine and Helena
68°F
SE 7 mph
Feels like: 68°F
Precip: 14%
World Resorts Bulgaria St Constantine and Helena Weather

St Constantine and Helena Sea Water Temperature

Current Sea Water Temperature:
+78.2°F
Maximum Sea Water Temperature in July: 86.8°F
Minimum Sea Water Temperature in July: 72.0°F
Average water temperature in July: 79.8°F

Sea Water Temperature for the Last 10 Days:

July 12 78.2°F July 07 78.2°F
July 11 78.2°F July 06 78.8°F
July 10 78.4°F July 05 78.4°F
July 09 79.0°F July 04 80.4°F
July 08 78.6°F July 03 81.2°F

When is the Warmest Sea for St Constantine and Helena?

According to our data for the last three years for St Constantine and Helena the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for St Constantine and Helena was 81.4°F. The maximum and minimum values were 79.4°F and 83.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for St Constantine and Helena was 79.9°F. The maximum and minimum values were 75.6°F and 84.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for St Constantine and Helena was 77.4°F. The maximum and minimum values were 72.0°F and 80.4°F respectively.

Best Time to Visit St Constantine and Helena
The most sunny months:
August 27 days
July 25 days
September 22 days
The most warm months:
August 86.8 °F
July 86.2 °F
June 79.6 °F
Warmest sea temperature:
August 81.2 °F
July 79.8 °F
September 76.6 °F
The most cold months:
January 41.0 °F
February 43.9 °F
December 45.8 °F
The most rainy months:
June 4 days
May 4 days
January 3 days
The most windy months:
February 11 mph
January 11 mph
December 11 mph

St Constantine and Helena on the Weather Map

Bulgaria Resorts:
NAME
Albena +68
Bansko +44
Burgas +70
Elenite +70
Golden Sands +68
Kiten +70
Kranevo +68
Nesebr +72
Obzor +70
Pomorie +72
Ravda +72
Sofia +54
Sunny Beach +70
Sveti Vlas +70
Varna +66
24 Hours Weather Forecast
St Constantine and Helena
Local time: 06:15
13 jul, monday
0900 74°F
SE
5 mph
1200 78°F
S
2 mph
1500 82°F
SW
4 mph
1800 76°F
NW
2 mph
2100 66°F
SE
11 mph
14 jul, tuesday
0000 64°F
SE
8 mph
0300 62°F
SE
10 mph
0600 60°F
SE
11 mph

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