If you planning to travel to Cooper River Marina, North 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 10:45 AM. The temperature feels like 69.1 with a humidity level of 74 so dress accordingly. Cloud coverage is 5 percent with visibility at 12.8 percent. Today’s UV index is 9, 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 11:53 PM.