Gull Lake, Canada offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Gull Lake, Alberta, Canada, is known for the Gull Lake Provincial Park and its recreational activities. The best time to travel to Gull Lake, Canada, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!