Chapeltown, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Chapeltown, Northern Ireland, United Kingdom, is known for the nearby Mourne Mountains and the scenic beauty of the surrounding County Down area. The best time to travel to Chapeltown, United Kingdom, is during late spring to early summer (May to June) when the average air temperature is around 15-20°C (59-68°F) and water temperature is approximately 10-15°C (50-59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!