Tecumseh, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Tecumseh is known for Lakewood Park, a popular destination for outdoor activities and scenic views. The best time to travel to Tecumseh, Canada, is during the summer months of June to August, when the average air temperature is around 75°F (24°C) and the water temperature in nearby Lake St. Clair is approximately 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!