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Charleston, SC
Partly Cloudy, 8:40 PM
77- Precipitation: 0%
- Humidity: 60%
- Wind: 2 mph
Air quality is satisfactory, and air pollution poses little or no risk.(Air quality powered by Breezometer)
No protection needed.
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Weather.com brings you the most accurate monthly weather forecast for Charleston, SC with average/record and high/low temperatures, precipitation and more.
Learn about the climate of Charleston, the main city of South Carolina, with subtropical weather and mild winters. See the average temperatures, precipitation, sunshine hours and hurricanes for each month of the year. Compare with other locations in the United States and the world.
Get the monthly weather forecast for Charleston, SC, including daily high/low, historical averages, to help you plan ahead.
Learn about the humid subtropical climate of Charleston, South Carolina, and how it varies throughout the year. Find out the best and worst times to visit, the average temperatures, rainfall, humidity, and wind speed for each month.
- What is the coldest month in Charleston?Charleston, South Carolina, experiences its lowest temperatures in January , with an average peak of 57°F and a low of 44.4°F .
- What are the least humid months in Charleston?January and March , with an average relative humidity of 73% , are the least humid months in Charleston.
- What is the driest month in Charleston?January is the month with the least rainfall in Charleston. Rain falls for 9.8 days and accumulates 1.42" of precipitation .
- How many days does it rain in Charleston?Throughout the year, there are 178.9 rainfall days , and 41.93" of precipitation is accumulated.
- When does it snow in Charleston?Months with snowfall in Charleston, South Carolina, are January and December .
- When does it snow the most in Charleston?January is the month with the most snowfall . Snow falls for 0.4 days and accumulates 0.12" of snow .
- How many days does it snow in Charleston?In Charleston, during the entire year, snow falls for 0.6 days and aggregates up to 0.16" of snow .
- What is the month with the lowest UV index in Charleston?January is the month with the lowest UV index in Charleston, South Carolina, with an average maximum UV index of 3 .
- When it does not snow in Charleston?In Charleston, snow does not fall in February through November .
Hottest Month: July (83 °F avg) Coldest Month: January (50 °F avg) Wettest Month: August (6.97" avg) Windiest Month: April (15 mph avg) Annual precip. 52.56"
Detailed temperature information for Charleston, South Carolina with statistics on average monthly highs and lows plus number of days with hot or cold weather.
Charleston weather by month. Click on each chart for more information. Average Temperature in Charleston. The hot season lasts for 3.8 months, from May 23 to September 18, with an average daily high temperature above 77°F. The hottest month of the year in Charleston is July, with an average high of 85°F and low of 66°F.
