Holyhead, United Kingdom offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Holyhead is known for the Holyhead Maritime Museum and the South Stack Lighthouse. The best time to travel to Holyhead, United Kingdom, 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!