Lastovo, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lastovo is known for the Lastovo Archipelago Nature Park and its annual Lastovo Carnival. The best time to travel to Lastovo, Croatia, is from June to September, when the average air temperature is around 25°C (77°F) and the sea temperature is approximately 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!