Grayan et l Hopital, France offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Grayan et l Hopital is known for the naturist resort Euronat in regard to tourism. The best time to travel to Grayan-et-l'Hopital, France, is during the summer months of June to August, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!