Charleston Weather in March

What's the weather like in Charleston (South Carolina) in March 2025?

The climate in Charleston during March can be summarized as mild and damp.

March is in the spring in Charleston and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 10°C (50°F) is normal.

Charleston weather averages (imperial / metric)
Daytime temperature 18.9°C 66°F
Nightly temperature 9.9°C 49.8°F
Average temperature 14.4°C 57.9°F
Daily sunshine 8.4 hrs
Avg rainfall 109 mm 4.3 ins
Rainy days 9 days
Sea temperature 20.1°C 68.2°F
Humidity 68%
Windspeed 16.6kph 10 mph

On average March is the 5th wettest month of the year in Charleston with around 109mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.4 hours of sunshine per day.

March temperatures in Charleston

Charleston average temperature in March

March rainfall

Charleston average rain in March

March hourly sunshine

Charleston average rain in March

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Charleston in March 2025.

Other monthly averages

Best places to visit in March

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Charleston weather stats

Charleston weather statistics
Hottest month: July 31.2°C 88.2°F
Driest month: November 60mm 2.4ins
Sunniest month: April 9.8hrs
Coldest month: January 13.3°C 55.9°F
Wettest month: August 185mm 7.3ins
Map showing location of Charleston (32.77657, -79.93092) Charleston map pin © Google

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