Holywood, United Kingdom offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Holywood is known for the Royal Belfast Golf Club and the Ulster Folk and Transport Museum. The best time to travel to Holywood, United Kingdom, is during late spring to early summer (May to June) when the average air temperature is around 15-18°C (59-64°F) and the water temperature is approximately 10-12°C (50-54°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!