The highest day temperature in March 2025 was 86°F. The lowest night temperature was 44°F. The average values for day and night temperatures during March were 71.0°F и 57.2°F respectivly.

The average sea surface temperature in March 2025 for St. Simons Island was 61.8°F. The maximum and minimum values were 57.6°F and 68.8°F respectively.

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

Precipitation total in March for St. Simons Island is 1.3 in.

The average wind speed in March is 6.4 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 St. Simons Island in March is 7.3 hours.