Ballylumford, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ballylumford, Northern Ireland, United Kingdom, is known for its proximity to the iconic Giant's Causeway and the scenic Antrim Coast. The best time to travel to Ballylumford, United Kingdom, is during the summer months of June to August, when the average air temperature is around 15-20°C (59-68°F) and the water temperature is approximately 13-15°C (55-59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!