The second week of August is considered "late summer" so the rates are a little less and the crowds are too. It really depends on exactly where you will be. There are many areas on the beach that don't get crowded even in the middle of summer. For instance, in Seagrove, it might get crowded near the condos, such as One Seagrove Place, but in other areas it's not crowded at all. Even when it's crowded here, it's not as crowded as Destin or other parts of Florida.