Agno, Philippines offers 21 beaches perfect for sunbathing, surfing, swimming, and more. Agno, Ilocos Region, Philippines, is known for the Umbrella Rocks and the scenic Agno Beach. The best time to travel to Agno, 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!