Jawa Lama, Indonesia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Jawa Lama, Aceh, Indonesia, is known for the Baiturrahman Grand Mosque and its historical significance in the Aceh Sultanate. The best time to travel to Jawa Lama, Indonesia, is from May to September, with average air temperatures around 28°C (82°F) and water temperatures near 27°C (81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!