Knockaveelish, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Knockaveelish is known for its proximity to the scenic Comeragh Mountains and the picturesque Mahon Falls. The best time to travel to Knockaveelish, Ireland, is from June to August, with average air temperatures around 15-20°C (59-68°F) and water temperatures approximately 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!