Nanya, Taiwan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Nanya, New Taipei City, Taiwan, is known for the Nanya Rock Formations, a unique coastal geological landscape. The best time to travel to Nanya, Taiwan, is from October to December, with average air temperatures around 20-25°C (68-77°F) and water temperatures approximately 24-26°C (75-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!