Clemson, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Clemson is known for Clemson University and its vibrant college football culture. The best time to travel to Clemson, United States, is in the fall (September to November) when the average air temperature is around 60-75°F and the nearby lake water temperature is approximately 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!