Sea Temperature in St Mary's Island in December

Complete information on the sea temperature range in the North Sea in St Mary's Island in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in St Mary's Island. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in St Mary's Island in December

43°F

MINIMUN

50°F

AVERAGE

57°F

MAXIMUM

Historical Data of Water Temperature in December in St Mary's Island

Water Temperature Chart for North Sea in St Mary's Island in December

Sea Temperature Table in St Mary's Island in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	52°C	52°C	55°C	52°C
Dec 2	52°C	52°C	54°C	52°C
Dec 3	52°C	50°C	54°C	52°C
Dec 4	52°C	52°C	54°C	52°C
Dec 5	52°C	50°C	54°C	51°C
Dec 6	52°C	50°C	54°C	51°C
Dec 7	54°C	48°C	52°C	51°C
Dec 8	52°C	54°C	48°C	52°C
Dec 9	50°C	52°C	50°C	51°C
Dec 10	50°C	48°C	52°C	50°C
Dec 11	52°C	48°C	50°C	50°C
Dec 12	50°C	48°C	50°C	50°C
Dec 13	50°C	50°C	50°C	50°C
Dec 14	50°C	50°C	50°C	50°C
Dec 15	50°C	48°C	50°C	50°C
Dec 16	48°C	50°C	50°C	50°C
Dec 17	48°C	50°C	48°C	49°C
Dec 18	50°C	50°C	50°C	50°C
Dec 19	50°C	48°C	46°C	48°C
Dec 20	48°C	48°C	46°C	48°C
Dec 21	48°C	50°C	46°C	48°C
Dec 22	50°C	48°C	48°C	49°C
Dec 23	48°C	48°C	46°C	48°C
Dec 24	46°C	50°C	48°C	48°C
Dec 25	46°C	50°C	48°C	48°C
Dec 26	46°C	48°C	48°C	48°C
Dec 27	48°C	48°C	46°C	48°C
Dec 28	48°C	48°C	48°C	48°C
Dec 29	46°C	48°C	48°C	48°C
Dec 30	46°C	48°C	48°C	48°C

St Mary's Island Climate and Swimming Opportunities in December

46°F

Average Day Air Temperature

37°F

Average Night Air Temperature

2 in

Precipitation Amount per Month

13 days

Number of Rainy Days

8 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

10 mph

Average Wind Speed

91%

Average
humidity

St Mary's Island lies within the England in United Kingdom. The average daytime temperature in St Mary's Island in December is 8°C (46°F), while the nighttime average is 3°C (37°F). There are typically 13 rainy days during the month, with a total precipitation of 63 mm (2.5 inches). The daylight duration in December in St Mary's Island is 8 hours, with an average of 2 hours of sunshine per day. The average wind speed in December is 16 km/h (10 mph), and the humidity level is around 91%.

The water temperature in St Mary's Island in December ranges from 8°C to 11°C (46°F to 52°F). At the beginning of the month, the average temperature is around 11°C (52°F), shifting to 10°C (50°F) by mid-December and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in St Mary's Island for December is 10°C (50°F). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in St Mary's Island

What is the sea temperature in St Mary's Island in December?

The water temperature in the North Sea in St Mary's Island in December ranges from 8°C to 11°C (46°F to 52°F).

Is it possible to swim in the North Sea in St Mary's Island in December?

The average sea temperature in St Mary's Island in December is 10°C (50°F), and the air temperature is 8°C (46°F), so still too cold for most swimmers. Only short dips in proper gear are advisable.