Ballynaule, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ballynaule is known for the Ballynaule Castle and the annual Ballynaule Music Festival. The best time to travel to Ballynaule, Ireland, is from May to September, with average air temperatures around 50-65°F (10-18°C) and water temperatures around 55-60°F (13-16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!