The highest day temperature in March 2026 was 87°F. The lowest night temperature was 19°F. The average values for day and night temperatures during March were 62.1°F и 47.3°F respectivly.

You can expect various weather conditions during March. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in March for Charleston is 1.2 in.

The average wind speed in March is 6.8 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Charleston in March is 6.3 hours.