Hilton Head Island Weather in October

The weather cools down during October at Hilton Head Island in South Carolina. This means that most days this month are pleasantly warm.

This page gives detailed information on the typical October 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

77 °F October average high 25 °C
59 °F October average low 15 °C

In most years, Hilton Head Island averages a daily maximum temperature for October that's between 74 and 79 degrees Fahrenheit (23 to 26 degrees Celsius). The minimum temperature usually falls between 56 and 63 °F (13 to 17 °C).

The days at Hilton Head Island continue to cool quickly during October. By the end of the month, the temperature has dropped around 7 °F (4 °C) below what it was at the start.

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

Usually every day during October the temperature rises to over 60 °F (16 °C) at Hilton Head. The resort town averages 9 days this month when the thermometer reaches into the 80s °F (over 27 °C). Temperatures above 90 °F (32 °C) don't happen during most Octobers.

The thermometer dips to 50 °F (10 °C) or below on an average of 5 nights. But October only rarely gets as cold as 40 °F (4 °C).

Rainy Weather iconRain

4.6 in total precipitation 117 mm
7 days of rain

Half the time, Hilton Head Island receives 1.8 to 6 inches (46 to 155 mm) of rainfall in October. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

63 % sunshine
12 days clear skies

The sun's rays reach the ground in Hilton Head Island during 63 percent of daylight hours on average in October, for a total of 222 hours in the month. Typically on 12 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in October at the vacation town lasts for 11 hours and 21 minutes a day on average. The longest day of the month is the 1st with 11 hours and 50 minutes of daylight. By the end of the month, the days have shortened to 10:54 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

73 % October average humidity

The relative humidity in Hilton Head Island during October usually peaks at 87 percent in the morning then drops to 53 percent by early afternoon.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 84 86 87 66 53 53 72 81

Stormy Weather iconStorms

3 days rainfall of 0.5 inches (13 mm) or more
8 % chance a named storm approaches

There's a 2 percent probability that a hurricane will approach within 100 miles (165 km) of Hilton Head Island during October. The chance of a major category 3 to 5 hurricane reaching the area is 1 percent.


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. The named storm probabilities come from the Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division.

Hilton Head Island Weather
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