Argyle Shore, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Argyle Shore, Prince Edward Island, Canada, is known for Argyle Shore Provincial Park, which offers scenic views of the red sandstone cliffs and the Northumberland Strait. The best time to travel to Argyle Shore, Canada, is during the summer months of July and August, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!