Lun, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lun is known for its ancient olive groves and beautiful Adriatic beaches. The best time to travel to Lun, Croatia, is during late spring to early autumn (May to September), when the average air temperature ranges from 20°C to 30°C (68°F to 86°F) and the sea temperature is around 22°C to 25°C (72°F to 77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!