San Dionisio, Philippines offers 4 beaches perfect for sunbathing, surfing, swimming, and more. San Dionisio is known for the Sicogon Island, a popular tourist destination in Western Visayas, Philippines. The best time to travel to San Dionisio, Philippines, is from December to May, with average air temperatures around 27°C (81°F) and water temperatures near 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!