If you planning to travel to Grand Dunes Golf Course, Myrtle Beach, 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 10:04 AM. The temperature feels like 88.4 with a humidity level of 82 so dress accordingly. Cloud coverage is 48 percent with visibility at 11.1 percent. Today’s UV index is 10, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 11 MPH. At the end of the day don’t miss the sunset at 12:26 AM.