If you planning to travel to H.L. Hunley Submarine, 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 10:20 AM. The temperature feels like 65.4 with a humidity level of 50 so dress accordingly. Cloud coverage is 1 percent with visibility at 14.3 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:12 AM.