Cherbourg en Cotentin, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cherbourg en Cotentin is known for the Cite de la Mer, a maritime museum featuring the Redoutable submarine and the Titanic exhibition. The best time to travel to Cherbourg en Cotentin, France, is from June to September, when the average air temperature is around 60-70°F (15-21°C) and the water temperature is approximately 60-64°F (16-18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!