Sherkin Island, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sherkin Island is known for its Sherkin Island Abbey and the Sherkin Island Marine Station. The best time to visit Sherkin Island, Ireland, is from June to August, with average air temperatures around 15-20°C (59-68°F) and water temperatures around 14-16°C (57-61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!