Le Crotoy, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. Le Crotoy is known for the Baie de Somme, a UNESCO-designated natural site. The best time to travel to Le Crotoy, 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 60-65°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!