Winona Lake, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Winona Lake is known for the Billy Sunday Home Museum and the Village at Winona. The best time to travel to Winona Lake, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and the water temperature is approximately 70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!