Sea Temperature in Mystic Island in December

Complete information on the sea temperature range in the Atlantic Ocean in Mystic Island in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Mystic 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 Mystic Island in December

39°F

MINIMUN

47°F

AVERAGE

55°F

MAXIMUM

Historical Data of Water Temperature in December in Mystic Island

Water Temperature Chart for Atlantic Ocean in Mystic Island in December

Sea Temperature Table in Mystic Island in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	52°C	48°C	52°C	51°C
Dec 2	50°C	50°C	50°C	50°C
Dec 3	50°C	48°C	50°C	49°C
Dec 4	50°C	48°C	50°C	49°C
Dec 5	50°C	48°C	50°C	49°C
Dec 6	50°C	48°C	50°C	49°C
Dec 7	48°C	48°C	48°C	48°C
Dec 8	45°C	48°C	48°C	47°C
Dec 9	45°C	45°C	48°C	47°C
Dec 10	45°C	48°C	50°C	48°C
Dec 11	46°C	48°C	50°C	48°C
Dec 12	46°C	48°C	50°C	48°C
Dec 13	46°C	48°C	48°C	47°C
Dec 14	46°C	48°C	48°C	47°C
Dec 15	46°C	46°C	46°C	47°C
Dec 16	45°C	46°C	46°C	46°C
Dec 17	45°C	46°C	48°C	47°C
Dec 18	45°C	46°C	46°C	46°C
Dec 19	43°C	46°C	46°C	46°C
Dec 20	46°C	46°C	46°C	46°C
Dec 21	46°C	46°C	45°C	46°C
Dec 22	45°C	46°C	45°C	46°C
Dec 23	45°C	46°C	45°C	46°C
Dec 24	45°C	45°C	45°C	45°C
Dec 25	43°C	45°C	43°C	44°C
Dec 26	41°C	45°C	43°C	44°C
Dec 27	41°C	45°C	41°C	43°C
Dec 28	43°C	45°C	41°C	44°C
Dec 29	43°C	46°C	41°C	45°C
Dec 30	43°C	46°C	39°C	44°C

Mystic Island Climate and Swimming Opportunities in December

46°F

Average Day Air Temperature

30°F

Average Night Air Temperature

4 in

Precipitation Amount per Month

11 days

Number of Rainy Days

9 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

12 mph

Average Wind Speed

70%

Average
humidity

Mystic Island lies within the New Jersey in United States. The average daytime temperature in Mystic Island in December is 47°F (8°C), while the nighttime average is 31°F (-1°C). There are typically 11 rainy days during the month, with a total precipitation of 3.7 inches (95 mm). The daylight duration in December in Mystic Island is 9 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 12 mph (19 km/h), and the humidity level is around 70%.

The water temperature in Mystic Island in December ranges from 43°F to 50°F (6°C to 10°C). At the beginning of the month, the average temperature is around 50°F (10°C), shifting to 46°F (8°C) by mid-December and reaching 45°F (7°C) in the last ten days. Overall, the average sea temperature in Mystic Island for December is 46°F (8°C). 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 Mystic Island

What is the sea temperature in Mystic Island in December?

The water temperature in the Atlantic Ocean in Mystic Island in December ranges from 43°F to 50°F (6°C to 10°C).

Is it possible to swim in the Atlantic Ocean in Mystic Island in December?

The average sea temperature in Mystic Island in December is 46°F (8°C), and the air temperature is 47°F (8°C), so still too cold for most swimmers. Only short dips in proper gear are advisable.