Solon, United States offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Solon, Iowa, United States, is known for Lake Macbride State Park. The best time to travel to Solon, United States, is in late spring (May to June) when the average air temperature is around 60-70°F, and water temperatures in nearby lakes are typically around 50-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!