La Teste-De-Buch, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. La Teste-De-Buch is known for the Dune of Pilat, the tallest sand dune in Europe. The best time to travel to La Teste-De-Buch, 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!