Granville, France offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Granville is known for the Christian Dior Museum, its picturesque harbor, and the Mont Saint-Michel views. The best time to travel to Granville, France, is from June to September, with average air temperatures around 60-70°F (15-21°C) and water temperatures around 60-65°F (15-18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!