Coldstream, Canada offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Coldstream, British Columbia, Canada, is known for Kalamalka Lake, which is famous for its stunning turquoise waters and scenic beauty. The best time to travel to Coldstream, Canada, is in July when the average air temperature is around 25°C (77°F) and the water temperature in nearby lakes is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!