Lacolle, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lacolle is known for the historic Fort Lennox National Historic Site. The best time to travel to Lacolle, Canada, is during the summer months of June to August, when the average air temperature is around 70°F (21°C) and the water temperature in nearby lakes is approximately 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!