Shimen, Taiwan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Shimen, New Taipei City, Taiwan, is known for the Shimen Reservoir and the scenic Laomei Green Reef. The best time to travel to Shimen, Taiwan, is from October to December, with average air temperatures around 20-25°C (68-77°F) and water temperatures approximately 24-27°C (75-81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!