Tullydish Upper, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Tullydish Upper is known for its proximity to the scenic landscapes of the Inishowen Peninsula and the historic Grianan of Aileach. The best time to travel to Tullydish Upper, Ireland, is during the summer months of June to August, when the average air temperature is around 15-20°C (59-68°F) and the nearby sea temperature is approximately 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!