Bono, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Bono, Ohio, United States, is known for its proximity to the Ottawa National Wildlife Refuge. The best time to travel to Bono, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and water temperatures in nearby lakes or rivers are typically around 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!