Saint Tropez, France offers 21 beaches perfect for sunbathing, surfing, swimming, and more. Saint Tropez is known for its glamorous beaches, luxury yachts, and vibrant nightlife. The best time to travel to Saint Tropez, France, is from June to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!