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 10:28 AM. The temperature feels like 69.1 with a humidity level of 67 so dress accordingly. Cloud coverage is 6 percent with visibility at 12.2 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 7 MPH. At the end of the day don’t miss the sunset at 11:59 PM.