The highest day temperature in March 2026 was 91°F. The lowest night temperature was 33°F. The average values for day and night temperatures during March were 69.3°F и 53.0°F respectivly.

The average sea surface temperature in March 2026 for Myrtle Beach was 56.3°F. The maximum and minimum values were 50.0°F and 59.6°F respectively.

Most of the days in March are sunny but you can also expect cloudy and gloomy days.

Precipitation total in March for Myrtle Beach is 0.9 in.

The average wind speed in March is 8.9 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 Myrtle Beach in March is 7.2 hours.