Denia, Spain offers 15 beaches perfect for sunbathing, surfing, swimming, and more. Denia is known for its historic Denia Castle, the Montgo Natural Park, and its vibrant culinary scene, particularly the famous Denia red prawn. The best time to travel to Denia, Spain, is from May 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!