Leamington, Canada offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Leamington, Ontario, Canada, is known for Point Pelee National Park. The best time to travel to Leamington, 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 in Lake Erie 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!