Petite Riviere Saint Francois, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Petite Riviere Saint Francois is known for Le Massif de Charlevoix ski resort. The best time to travel to Petite Riviere Saint Francois, Canada, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and water temperature is approximately 15-20°C (59-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!