Charleston weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Poor
Best time to visit: May – October
What is the weather like in Charleston in March?
In March, Charleston is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. The sea averages 16.0 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 83 mm. All in all, March is not an ideal month for a holiday in Charleston.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 23 | 26 | 57 |
| Day | 16° | 19° | 22° |
| Night | 9° | 11° | 15° |
| Sea | 15° | 16° | 19° |
| Sun | 6 h | 6 h | 8 h |
| Rain days | 8 | 8 | 8 |
More details for March
- Daylight
- 11 h 55 min07:32 – 19:27
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 51 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 20 %71 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in March
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Charleston in March: quick answers
Is Charleston hot in March?
No. In March, Charleston is mild: daytime highs average 19 °C and nights drop to about 11 °C.
Can you swim in Charleston in March?
Only if you don't mind cold water: in March the sea averages just 16.0 °C. Comfortable swimming is possible from May to October.
Does it rain much in Charleston in March?
Rain falls on about 8 days, adding up to 83 mm.
Charleston month by month
The whole year in CharlestonAll destinations: USAWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences