Alcabideche, Portugal offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Alcabideche is known for its proximity to the stunning beaches and vibrant cultural attractions of the Lisbon region. The best time to travel to Alcabideche, Portugal, is from May to September, when the average air temperature ranges from 20°C to 28°C (68°F to 82°F) and the average sea temperature is around 18°C to 21°C (64°F to 70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!