Tioga, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Tioga, North Dakota, United States, is known for the Tioga Dam and its proximity to the Bakken oil fields. The best time to travel to Tioga, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and water temperatures in nearby lakes are approximately 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!