Cape Jack, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cape Jack, Nova Scotia, Canada, is known for its proximity to the scenic Cape Breton Highlands and the Cabot Trail. The best time to travel to Cape Jack, Canada, is in July when the average air temperature is around 20°C (68°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!