Benicassim, Spain offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Benicassim is known for the Festival Internacional de Benicassim (FIB), a major music festival attracting international artists and visitors. The best time to travel to Benicassim, Spain, is from June to September, when the average air temperature is around 25-30°C (77-86°F) and the water temperature is approximately 22-26°C (72-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!