Saint Lunaire, France offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Saint Lunaire is known for its beautiful beaches and coastal scenery. The best time to travel to Saint Lunaire, France, is from June to September, when the average air temperature is around 18-22°C (64-72°F) and the water temperature is approximately 17-20°C (63-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!