Sao Joao das Lampas e Terrugem, Portugal offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Sao Joao das Lampas e Terrugem, Lisbon, Portugal, is known for its proximity to the Sintra-Cascais Natural Park and the historic town of Sintra. The best time to travel to Sao Joao das Lampas e Terrugem, Portugal, is from May to September, with average air temperatures ranging from 18°C to 28°C and water temperatures around 18°C to 21°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!