We're considering a vacation to Isle of Palms the week of Thanksgiving, Nov. 18-25. What will the weather be like then? Temps in the 60's? 70's? What will the water temps be like? Still warm enough to swim in the ocean? FYI, southern California only reaches 72 degrees in the heat of August and we can survive that, with some 10 minutes to so to get used to it, so as long as it's warmer than 72 or so we'll survive. Ideal would be 80 or warmer.