Le Gros Violon, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Le Gros Violon is known for the Le Gros Violon Lighthouse and its scenic views of the St. Lawrence River. The best time to travel to Le Gros Violon, 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!