Sea Temperature in Charleston in December

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

50°F

MINIMUN

62°F

AVERAGE

73°F

MAXIMUM

Historical Data of Water Temperature in December in Charleston

Water Temperature Chart for Atlantic Ocean in Charleston in December

Sea Temperature Table in Charleston in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	63°C	63°C	66°C	62°C
Dec 2	63°C	63°C	64°C	62°C
Dec 3	63°C	63°C	63°C	62°C
Dec 4	63°C	64°C	64°C	63°C
Dec 5	61°C	63°C	63°C	62°C
Dec 6	59°C	63°C	63°C	61°C
Dec 7	59°C	64°C	64°C	62°C
Dec 8	59°C	59°C	63°C	61°C
Dec 9	59°C	59°C	61°C	61°C
Dec 10	59°C	61°C	66°C	62°C
Dec 11	57°C	63°C	64°C	61°C
Dec 12	59°C	64°C	64°C	62°C
Dec 13	59°C	63°C	64°C	61°C
Dec 14	59°C	63°C	64°C	62°C
Dec 15	59°C	61°C	63°C	61°C
Dec 16	59°C	61°C	64°C	61°C
Dec 17	59°C	61°C	63°C	61°C
Dec 18	59°C	61°C	63°C	61°C
Dec 19	59°C	63°C	63°C	61°C
Dec 20	59°C	61°C	61°C	61°C
Dec 21	59°C	61°C	61°C	61°C
Dec 22	57°C	59°C	59°C	59°C
Dec 23	57°C	59°C	59°C	59°C
Dec 24	57°C	57°C	59°C	59°C
Dec 25	57°C	59°C	57°C	59°C
Dec 26	57°C	59°C	55°C	59°C
Dec 27	57°C	59°C	54°C	58°C
Dec 28	57°C	61°C	54°C	59°C
Dec 29	57°C	61°C	52°C	58°C
Dec 30	55°C	61°C	55°C	59°C

Charleston Climate and Swimming Opportunities in December

61°F

Average Day Air Temperature

43°F

Average Night Air Temperature

3 in

Precipitation Amount per Month

9 days

Number of Rainy Days

10 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

9 mph

Average Wind Speed

72%

Average
humidity

Charleston lies within the South Carolina in United States. The average daytime temperature in Charleston in December is 61°F (16°C), while the nighttime average is 43°F (6°C). There are typically nine rainy days during the month, with a total precipitation of 3.0 inches (77 mm). The daylight duration in December in Charleston is 10 hours, with an average of 6 hours of sunshine per day. The average wind speed in December is 9 mph (15 km/h), and the humidity level is around 72%.

The water temperature in Charleston in December ranges from 57°F to 63°F (14°C to 17°C). At the beginning of the month, the average temperature is around 63°F (17°C), shifting to 61°F (16°C) by mid-December and reaching 59°F (15°C) in the last ten days. Overall, the average sea temperature in Charleston for December is 61°F (16°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Charleston

What is the sea temperature in Charleston in December?

The water temperature in the Atlantic Ocean in Charleston in December ranges from 57°F to 63°F (14°C to 17°C).

Is it possible to swim in the Atlantic Ocean in Charleston in December?

The average sea temperature in Charleston in December is 61°F (16°C), and the air temperature is 61°F (16°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.