Ballybrack, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ballybrack is known for its proximity to the scenic Killiney Hill and the historic Dalkey Castle. The best time to travel to Ballybrack, Ireland, is from June to August, with average air temperatures around 60-70°F (15-21°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!