Selkirk, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Selkirk, Ontario, Canada, is known for the Selkirk Provincial Park and its proximity to Lake Erie. The best time to travel to Selkirk, Canada, is in July when the average air temperature is around 25°C (77°F) and the water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!