Folly Beach, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Folly Beach is known for the Folly Beach Pier and the Morris Island Lighthouse. The best time to visit Folly Beach is from late April to early June, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!