Callville Bay, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Callville Bay is known for its marina on Lake Mead, offering access to boating, fishing, and water sports. The best time to travel to Callville Bay is in late spring or early fall 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!