Lima, United States offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Lima, Ohio, United States, is known for the Allen County Museum and the Veterans Memorial Civic and Convention Center. The best time to travel to Lima, United States, is during the summer months of June to August, with average air temperatures around 80°F (27°C) and water temperatures in nearby lakes around 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!