Sainte Luce, France offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Sainte Luce, Le Marin, France, is known for its beautiful beaches and the Trois Rivieres Distillery. The best time to travel to Sainte Luce, France, is from June to September, with average air temperatures around 70-80°F (21-27°C) and water temperatures around 68-75°F (20-24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!