Jullouville, France offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Jullouville is known for its beautiful sandy beaches and the scenic views of the Mont Saint-Michel Bay. The best time to travel to Jullouville, France, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 17-20°C (63-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!