Insights into temperature, precipitation, and weather trends. The humidity will be low during the month Get the monthly weather forecast for charleston, sc, including daily high/low, historical averages, to help you plan ahead.
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Charleston weather forecast for december 2025, is based on previous years' statistical data.
December weather for charleston, south carolina
In charleston, south carolina, during december, the rain falls for 11.1 days and regularly aggregates up to 4.25 (108mm) of precipitation With an average relative humidity of 78%, december is the most humid month in charleston, south carolina. Full weather forecast for charleston in december 2025 Check the temperatures, chance of rain and more in charleston during december.
Plan outdoor activities with confidence using our proprietary forecast model. December is an excellent time to visit charleston, south carolina It features all historical weather data series we have available, including the charleston temperature history for 2025 You can drill down from year to month and even day level reports by clicking on the graphs.
December witnesses the onset of winter at charleston international airport, replete with low temperatures and increased rainfall
Generally, december in charleston will be slightly on the colder side, with an average temperature of around 62°f / 17°c
