Hilton Head Island (SC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Hilton Head Island.
Climate overview of Hilton Head Island
Hilton Head Island, South Carolina, United States of America, sees big temperature differences between seasons, with July peaking at 32°C (90°F) and January dropping to 15°C (59°F).
Rainfall is high, totalling around 1144 mm (45 in) per year. August is the wettest month and November the driest. May is the sunniest month, averaging 9.3 hours of sunshine per day.
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.
Monthly Temperature in Hilton Head Island
Visitors to Hilton Head Island can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very warm 32°C (90°F) in July, the warmest time of the year, to a moderate 15°C (59°F) during cooler months like January.
At night, you can expect temperatures ranging from 24°C (75°F) in July to around 5°C (41°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Hilton Head Island
Hilton Head Island is known for its substantial rainfall, with annual precipitation reaching 1144 mm (45 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, August it receives heavy rainfall, averaging 199 mm (7.8 in) of precipitation, recorded across 16 rainy days. In contrast, the driest month November brings less rainfall, with 50 mm (2 in) over 7 rainy days. For more details, please visit our Hilton Head Island Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Hilton Head Island
While the amount of sunshine in Hilton Head Island varies throughout the year, all seasons offer their own charm. Enjoy up to 9.3 hours of daily sun in May, and experience slightly darker atmosphere in November, with about 6.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Hilton Head Island
The mean water temperature over the year ranges from 14°C (57°F) in February to 29°C (84°F) in August.
Water temperature over the year
Best Time to Visit Hilton Head Island
The weather does bring rainfall during this period, between 50 mm (2 in) and 123 mm (4.8 in).
Plan accordingly for August, when conditions bring the heaviest precipitation. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Hilton Head Island
What is the best time to visit Hilton Head Island?
March, April, May, October and November typically offer the most optimal weather in Hilton Head Island. In contrast, August tends to have less optimal conditions.
What temperatures can I expect in Hilton Head Island?
Daytime highs range from 15°C (59°F) in January to 32°C (90°F) in July. Nighttime lows range from 5°C (41°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Hilton Head Island get?
Annual rainfall is around 1144 mm (45 in). August is the wettest month with 199 mm (7.8 in), while November is the driest with 50 mm (2 in).
How sunny is Hilton Head Island?
Hilton Head Island receives around 2,785 hours of sunshine per year. May is the sunniest month with 280 hours, while November is the cloudiest with just 181 hours. Overall, Hilton Head Island enjoys abundant sunshine.
Hilton Head Island 3-Day Forecast
Hilton Head Island (SC) 3-Day Forecast
Hilton Head Island on the map
Hilton Head Island is highlighted — select any city to see its climate.
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