Le Marin, France offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Le Marin, France, is known for its Marina du Marin, one of the largest and most popular marinas in the Caribbean. The best time to travel to Le Marin, France, is from December to April, with average air temperatures around 77-86°F (25-30°C) and water temperatures around 79-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!