Hilton Head Island Weather in April

Hilton Head Island basks in fine weather during April. This is the sunniest and least humid month for the coastal resort town in South Carolina.

This page gives detailed information on the typical April 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

75 °F April average high 24 °C
55 °F April average low 13 °C

In most years, Hilton Head Island averages a daily maximum temperature for April that's between 73 and 78 degrees Fahrenheit (23 to 25 degrees Celsius). The minimum temperature usually falls between 51 and 58 °F (11 to 14 °C).

The days at Hilton Head Island warm most rapidly during April. By the end of the month, the temperature has climbed around 7 °F (4 °C) above what it was at the start.

24 days 70 °F max. or more (21 °C)
23 days 60 °F min. or less (16 °C)

Usually every day during April the temperature rises above 60 °F (16 °C) at Hilton Head Island. The beach town averages 6 days this month when the thermometer reaches into the 80s °F (over 27 °C). A temperature of 90 °F (32 °C) or above can happen briefly during April.

The thermometer dips to 40 °F (4 °C) or below on an average of one night this month. But April does not normally get cold enough for frost.

Rainy Weather iconRain

3.2 in total precipitation 80 mm
6 days of rain

Half the time, Hilton Head Island receives 1.7 to 4 inches (44 to 111 mm) of rainfall in April. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

71 % sunshine
11 days clear skies

The sun's rays reach the ground in Hilton Head Island during 71 percent of daylight hours on average in April, for a total of 277 hours in the month. Typically on 11 days this month the sky is mainly clear, with at most 30 percent cloud cover. This is the sunniest month for the beach town.

Sunlight in April at the resort town lasts for 12 hours and 59 minutes a day on average. The shortest day of the month is the 1st with 12 hours and 32 minutes of daylight. By the end of the month, the days have lengthened to 13:26 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

65 % April average humidity

The relative humidity in Hilton Head Island during April usually peaks at 83 percent in the morning then drops to 46 percent by early afternoon. This is the least humid month at the Island.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 79 82 83 57 46 46 58 73

Stormy Weather iconStorms

2 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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