Salmon, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Salmon, Idaho, United States, is known for the Salmon River, the Sacajawea Interpretive, Cultural & Education Center, and the Frank Church-River of No Return Wilderness. The best time to travel to Salmon, United States, is during the summer months of June to August, when the average air temperature is around 70-85°F and the water temperature in nearby rivers is approximately 60-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!