Mitchell's Bay, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mitchell's Bay is known for its excellent fishing opportunities on Lake St. Clair. The best time to travel to Mitchell's Bay, Canada, is during the summer months of June to August, when the average air temperature is around 70-80°F (21-27°C) and the water temperature is approximately 68-72°F (20-22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!