Kawartha Lakes, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kawartha Lakes is known for the Trent-Severn Waterway, Balsam Lake Provincial Park, and the Kawartha Dairy. The best time to travel to Kawartha Lakes, 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 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!