Grote Berg, Curacao offers 1 beach perfect for sunbathing, surfing, swimming, and more. Castlerock is known for the Mussenden Temple and Downhill Demesne. The best time to travel to Grote Berg, Curacao, is from December to April, with average air temperatures around 80°F (27°C) and water temperatures near 79°F (26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!