Guiuan, Philippines offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Guiuan is known for Calicoan Island, Homonhon Island, and the Guiuan Church. The best time to travel to Guiuan, Philippines, is from December to May, with average air temperatures around 27-30°C (81-86°F) and water temperatures approximately 28-30°C (82-86°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!