Weather in Charleston: March
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Average day temperature: | 65.9°F |
| Average night temperature: | 56.1°F | |
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Sea water temperature: | 60.8°F |
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Number of sunny days: | 13 days |
| Day length: | 11.5 - 12.5 hours | |
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Number of rainy days: | 5 days |
| Precipitation totals: | 2.8 in. | |
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forecast
| Charleston |
temperature
| Charleston |
Air temperature in March, °F
| Day temperature | Night temperature |
The highest day temperature during March of 2025 was 77°F. At the same time the lowest night temperature was 42°F. Daily and nightly averages during March were 68.4°F and 56.1°F.
Sea water temperature in Charleston in March, °F
The average sea water temperature in March of 2025 was 58.3°F. The highest and lowest sea temperatures during the month were 62.1°F and 53.8°F.
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
Number of sunny, partly cloudy and cloudy days in March is almost equal.
Precipitation total in March, in.
Precipitation total value in Charleston in March is 2.6 in. Other months of the year show relatively similar values.
The average wind speed value in March is 9.1 mph It makes March one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in March is: 6.9.
Best time for vacation in Charleston
Charleston on a weather map
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