Sagunt, Spain offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Sagunt, Valencia, Spain, is known for the Sagunto Castle and the Roman Theatre. The best time to travel to Sagunt, Spain, is from May to June, when the average air temperature is around 24°C (75°F) and the water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!