Biarritz, France offers 18 beaches perfect for sunbathing, surfing, swimming, and more. Biarritz is known for its stunning beaches, the historic Hotel du Palais, and the iconic Biarritz Lighthouse. The best time to travel to Biarritz, France, is from June to September, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 19-22°C (66-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!