Monticello, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Monticello, Indiana, United States, is known for Indiana Beach Amusement Resort. The best time to travel to Monticello, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
