Rab, Croatia offers 33 beaches perfect for sunbathing, surfing, swimming, and more. Rab is known for its historic old town, beautiful beaches, and the annual Rab Medieval Festival. The best time to travel to Rab, Croatia, is from June to September, with average air temperatures around 75°F (24°C) and water temperatures about 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!