If you planning to travel to United States Navy Naval Support Activity Charleston, Charleston, 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 10:47 AM. The temperature feels like 79.35 with a humidity level of 78 so dress accordingly. Cloud coverage is 20 percent with visibility at 12.1 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 7 MPH. At the end of the day don’t miss the sunset at 11:56 PM.