German, Isle of Man offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Isle of Man, the Isle of Man is known for the annual TT (Tourist Trophy) motorcycle races. The best time to travel to Germany is from May to September, with average air temperatures ranging from 15°C to 25°C and water temperatures around 18°C to 22°C, while the Isle of Man is best visited from June to August, with average air temperatures between 14°C and 19°C and water temperatures around 14°C to 16°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!