Formentera, Spain offers 19 beaches perfect for sunbathing, surfing, swimming, and more. Formentera is known for its pristine beaches like Ses Illetes and the iconic lighthouse at Cap de Barbaria. The best time to travel to Formentera, Spain, is from late May to early October, with average air temperatures around 25-30°C (77-86°F) and water temperatures ranging from 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!