Hourtin, France offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Hourtin is known for Lake Hourtin-Carcans, one of the largest freshwater lakes in France, and its proximity to the Atlantic Ocean beaches. The best time to travel to Hourtin, France, is from June to September, when the average air temperature is around 70-80°F (21-27°C) and the water temperature is approximately 68-72°F (20-22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!