Crosshaven, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Crosshaven is known for the Royal Cork Yacht Club, the oldest yacht club in the world. The best time to travel to Crosshaven, Ireland, is from June to August, with average air temperatures around 15-20°C (59-68°F) and sea 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!