Diarabasin, Philippines offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Diarabasin, Central Luzon, Philippines, is known for the Mount Arayat National Park. The best time to travel to Diarabasin, 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!