World Resorts Bulgaria St Constantine and Helena Weather

St Constantine and Helena sea water temperature

Current sea water temperature:
+50.2°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: 50.3°F
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Sea water temperature for the last 10 days:

December 29 50.2°F December 24 52.0°F
December 28 50.0°F December 23 51.8°F
December 27 50.0°F December 22 51.6°F
December 26 50.9°F December 21 51.8°F
December 25 52.3°F December 20 52.2°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 46.2 °F
Rainiest months:
June 4 days
May 4 days
January 3 days
Windiest months:
February 11.6 mph
January 11.3 mph
December 11.1 mph

St Constantine and Helena on a weather map

Current weather
23:04
St Constantine and Helena
+34°F
NE 9 mph
Feels like: +27°F
Precip.: 0%
Places in Bulgaria:
Name
°F
Bansko
+23°F
Burgas
+34°F
Byala
+36°F
Varna
+34°F
Elenite
+36°F
Golden Sands
+37°F
Nesebr
+36°F
Obzor
+36°F
Pomorie
+36°F
Ravda
+36°F
Sarafovo
+34°F
Sveti Vlas
+36°F
Sunny Beach
+36°F
Sofia
+28°F
Chernomorets
+34°F
all places
24 Hours Forecast
St Constantine and Helena
Local time: 23:04
December 30, tuesday
0000
34°F
NE
9 mph
0300
34°F
NE
9 mph
0600
34°F
E
9 mph
0900
37°F
E
9 mph
1200
48°F
E
16 mph
1500
46°F
E
17 mph
1800
37°F
SE
19 mph
2100
34°F
SE
21 mph
Units of measurement: °C / °F