Temiscouata sur le Lac, Canada offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Temiscouata sur le Lac is known for the Parc National du Lac-Temiscouata, which offers stunning natural landscapes and outdoor activities. The best time to travel to Temiscouata-sur-le-Lac, Canada, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!