Hilton Head Island Weather in March

March's brings mild temperatures and mainly dry weather to Hilton Head Island in South Carolina.

This page gives detailed information on the typical March weather for Hilton Head Island. The temperature and rainfall numbers here are historical averages based on climate data gathered at Hilton Head Island. The humidity and sunshine measurements are averages from the Savannah / Hilton Head International Airport.

Temperature Weather iconTemperature

69 °F March average high 21 °C
49 °F March average low 9 °C

In most years, Hilton Head Island averages a daily maximum temperature for March that's between 66 and 72 degrees Fahrenheit (19 to 22 degrees Celsius). The minimum temperature usually falls between 46 and 52 °F (8 to 11 °C).

The days at Hilton Head Island warm more quickly during March. By the end of the month, the temperature has climbed around 6 °F (4 °C) above what it was at the start.

15 days 70 °F max. or more (21 °C)
16 days 50 °F min. or less (10 °C)

The temperature rises nearly every day in March to over 60 °F (16 °C) at Hilton Head. The Island averages 2 days this month when the thermometer reaches into the 80s °F (over 27 °C). Temperatures above 90 °F (32 °C) are not expected here during March.

The thermometer dips to 32 °F (0 °C) or below just 1 night this month, on average. March does not normally get as cold as 20 °F (-8 °C).

Rainy Weather iconRain

3.4 in total precipitation 87 mm
7 days of rain

Half the time, Hilton Head Island receives 2 to 5 inches (45 to 122 mm) of rainfall in March. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

62 % sunshine
9 days clear skies

The sun's rays reach the ground in Hilton Head Island during 62 percent of daylight hours on average in March, for a total of 231 hours in the month. Typically on 9 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in March at Hilton Head Island lasts for exactly 12 hours a day on average. The shortest day of the month is the 1st with 11 hours and 31 minutes of daylight. By the end of the month, the days have lengthened to 12:30 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

67 % March average humidity

The relative humidity in Hilton Head Island during March usually peaks at 83 percent in the morning then drops to 48 percent by late afternoon.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 78 81 83 62 49 48 61 73

Stormy Weather iconStorms

3 days rainfall of 0.5 inches (13 mm) or more

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity statistics are 1961-1990 normals.

Hilton Head Island Weather
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