Sainte Marie, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sainte Marie is known for its beautiful beaches and lush natural landscapes. The best time to travel to Sainte Marie, France, is from June to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!