Hilton Head Island Weather in December

What's the weather like in Hilton Head Island, United States in December 2018?

The climate in Hilton Head Island during December can be summarized as mild and reasonably dry.

December is in the winter in Hilton Head Island and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 6°C (42°F) is normal.

Hilton Head Island weather averages (imperial / metric)
Daytime temperature 16°C 60.8°F
Nightly temperature 5.8°C 42.4°F
Average temperature 10.9°C 51.6°F
Daily sunshine 6.2 hrs
Avg rainfall 75 mm 2.9 ins
Rainy days 8 days
Sea temperature 20.9°C 69.7°F
Humidity 72%
Windspeed 13.3kph 8 mph

On average December is the 4th driest month of the year in Hilton Head Island with around 75mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.2 hours of sunshine per day.

December temperatures in Hilton Head Island

December rainfall

December hourly sunshine

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in December 2018.

Other monthly averages

Hilton Head Island weather stats

Hilton Head Island weather statistics
Hottest month: July 31.8°C 89.2°F
Driest month: November 56mm 2.2ins
Sunniest month: April 9.8hrs
Coldest month: January 14°C 57.2°F
Wettest month: August 193mm 7.6ins
Map showing location of Hilton Head Island (32.21632, -80.75261)

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