St Constantine and Helena sea water temperature

Current sea water temperature:

+52.5°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

more information

14 days
forecast

St Constantine and Helena

monthly
weather

St Constantine and Helena

December 16	52.5°F	December 11	54.3°F
December 15	52.3°F	December 10	54.7°F
December 14	53.1°F	December 9	55.4°F
December 13	53.2°F	December 8	56.7°F
December 12	54.0°F	December 7	58.1°F

January
February
March
April

May
June
July
August

September
October
November
December

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.

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.

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.

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.

current
weather

St Constantine and Helena

weather in
December

St Constantine and Helena