Belle River, Canada offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Belle River is known for its beautiful waterfront and beach activities along Lake St. Clair. The best time to travel to Belle River, Canada, is during the summer months of June to August, when the average air temperature ranges from 20°C to 27°C (68°F to 81°F) and the water temperature in Lake St. Clair is typically around 20°C to 24°C (68°F to 75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!