Back Harbour, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hayborough is known for its proximity to the popular tourist destination of Victor Harbor and the scenic Granite Island. The best time to travel to Back Harbour, Canada, is during the summer months of July and August, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 15°C (59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!