South Lake Tahoe, United States offers 6 beaches perfect for sunbathing, surfing, swimming, and more. South Lake Tahoe is known for Heavenly Mountain Resort and the crystal-clear waters of Lake Tahoe. The best time to travel to South Lake Tahoe is from June to September, with average air temperatures ranging from 70-80°F and water temperatures around 65°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!