Les Mathes, France offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Les Mathes is known for its beautiful beaches and family-friendly attractions, including the popular La Palmyre Zoo. The best time to travel to Les Mathes, France, is from June to September, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!