Ancol, Indonesia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Ancol, Daerah Khusus Ibukota Jakarta, Indonesia, is known for Ancol Dreamland, Dunia Fantasi, and SeaWorld Ancol. The best time to travel to Ancol, Indonesia, is from May to September, with average air temperatures around 28°C (82°F) and water temperatures near 29°C (84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!