The Mullagh, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. The Mullagh is known for its picturesque rural landscapes and historical sites in Leinster, Ireland. The best time to travel to The Mullagh, Ireland, is from May to September, with average air temperatures ranging from 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!