Average monthly water temperature in Hilton Head Island, the United States of America
On this page you find the mean water temperature over the year in Hilton Head Island (South Carolina), the United States of America. Dive into the water temperature trends, highlighting the best times for swimming and other activities.
In Hilton Head Island, the water undergoes seasonal changes. The warmest month is August, with an average water temperature of 29°C (84°F).
The coldest water temperature month, February, has an average temperature of 14°C (57°F). It may not be the ideal time for a swim.
Hilton Head Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hilton Head Island - and find the best time to visit.
Hilton Head Island 3-Day Forecast
Temperature Rainfall Sunshine Water Temp
See the full Hilton Head Island climate overview or explore weather in the United States of America.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
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