Blewett, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Blewett, British Columbia, Canada, is known for its proximity to the Kootenay River and the scenic hiking trails in the surrounding Selkirk Mountains. The best time to travel to Blewett, 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!