Islandmagee, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Islandmagee, Northern Ireland, United Kingdom, is known for the Gobbins Cliff Path. The best time to travel to Islandmagee, United Kingdom, is from June to August, with average air temperatures around 15-20°C (59-68°F) and water temperatures around 13-16°C (55-61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!