Shell Creek Segment, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Shell Creek Segment, North Dakota, United States, is known for the Sheyenne River Valley National Scenic Byway. The best time to travel to the Shell Creek Segment in the United States is during late spring to early summer, with average air temperatures around 70-80°F and water temperatures ranging from 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!