Poljane, Opatija, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Opatija is known for its historic Lungomare promenade, the grand Hotel Kvarner, and the beautiful Angiolina Park. The best time to travel to Poljane, Opatija, Croatia, is from May to September, with average air temperatures ranging from 20-28°C (68-82°F) and sea temperatures around 22-25°C (72-77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!