UV Index
UV Index
Today's UV index in Hilton Head Island, United States 
will be up to 10.1, indicating a very high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-13
With a UV index of 10.1 in Hilton Head Island, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
The UV index on Hilton Head Island typically ranges from moderate to high, especially during the summer months when it can reach very high levels due to strong sunlight and clear skies.
Seasonally, Hilton Head Island experiences warm and humid summers with temperatures often in the 80s and 90s Fahrenheit. Winters are mild and short, with temps usually in the 50s and 60s, and spring and fall are pleasant and less humid.
Compared to nearby areas like Charleston, South Carolina, and Savannah, Georgia, Hilton Head Island generally has similar weather patterns but can be slightly milder due to its coastal location. It experiences less extreme heat than inland places but more humidity.
See the UV index hour by hour for Hilton Head Island, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.