Measurements:
°C
°F
Charleston
40°F
SW 12 mph
Feels like: 32°F
Precip: 0%
World Resorts USA Charleston Weather December Weather in Charleston

Charleston Weather: December

Average Day Temperature: 62.2°F
Average Night Temperature: 54.2°F
Sea Water Temperature: 61.7°F
Number of Sunny Days: 13 days
Sunshine Hours: 10.0 - 10.1 hours
Number of Rainy Days: 4 days
Precipitation Totals: 3.5 in

Air Temperature in December, °F

Select Year: 2023 2022 2021

The highest day temperature in December 2023 was 74°F. The lowest night temperature was 37°F. The average values for day and night temperatures during December were 61.2°F и 54.0°F respectivly.

Charleston Water Sea Temperature in December, °F

Select Year: 2024 2023 2022

The average sea surface temperature in December 2023 for Charleston was 57.5°F. The maximum and minimum values were 53.0°F and 61.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in December are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in December, in

Precipitation total in December for Charleston is 3.5 in.

Wind Speed in December, mph

The average wind speed in December is 8.4 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Charleston in December is 5.5 hours.

Best Time to Visit Charleston
The most sunny months:
April 16 days
October 15 days
May 15 days
The most warm months:
July 93.7 °F
August 92.0 °F
June 90.0 °F
Warmest sea temperature:
August 87.5 °F
July 87.3 °F
September 84.6 °F
The most cold months:
January 57.1 °F
February 61.3 °F
December 62.2 °F
The most rainy months:
August 10 days
July 9 days
June 7 days
The most windy months:
March 9 mph
April 9 mph
February 9 mph

Charleston on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
Charleston
Local time: 05:25
22 dec, sunday
0600 40°F
SW
12 mph
0900 38°F
S
12 mph
1200 44°F
SW
12 mph
1500 48°F
SW
10 mph
1800 48°F
SW
9 mph
2100 44°F
SW
11 mph
23 dec, monday
0000 40°F
SW
11 mph
0300 38°F
SW
12 mph