Summerland, Canada offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Summerland is known for its wineries, Kettle Valley Steam Railway, and Okanagan Lake. The best time to travel to Summerland, Canada, is in July when the average air temperature is around 27°C (81°F) and the water temperature in Okanagan Lake is approximately 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!