Biong, Philippines offers 1 beach perfect for sunbathing, surfing, swimming, and more. Biong, Bicol, Philippines, is known for its proximity to the majestic Mayon Volcano. The best time to travel to Biong, Philippines, is from December to May, with average air temperatures around 77-86°F (25-30°C) and water temperatures approximately 79-84°F (26-29°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!