Phi Phi Islands, Thailand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Phi Phi Islands, Krabi, Thailand, is known for Maya Bay, Viking Cave, and the vibrant nightlife at Tonsai Village. The best time to visit Phi Phi Islands, Thailand, is from November to April, with average air temperatures around 28°C (82°F) and water temperatures about 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!