Neum, Bosnia and Herzegovina offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Neum, Bosnia and Herzegovina, is known for its Adriatic Sea coastline and the Neum-Klek Bay. The best time to travel to Neum, Bosnia and Herzegovina, is from June to September, when the average air temperature is around 25-30°C (77-86°F) and the sea temperature is approximately 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!