Sainte Luce sur Mer, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sainte Luce sur Mer is known for its picturesque coastal views and charming seaside atmosphere. The best time to travel to Sainte Luce sur Mer, Canada, is during the summer months of June to August, when the average air temperature is around 68°F (20°C) and the water temperature is approximately 59°F (15°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!