Ko Yao Noi, Thailand offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Ko Yao Noi is known for its serene beaches, luxury resorts, and the stunning Phang Nga Bay. The best time to travel to Ko Yao Noi, Thailand, is from November to February, 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!