If you planning to travel to The Sandbox, Hilton Head Island, South Carolina, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 11:44 AM. The temperature feels like 74.5 with a humidity level of 94 so dress accordingly. Cloud coverage is 37 percent with visibility at 9 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 9 MPH. At the end of the day don’t miss the sunset at 10:29 PM.