Caxias, Portugal offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Faro is known for its stunning beaches and as a gateway to the Algarve region. The best time to travel to Caxias, Portugal, is during late spring to early autumn (May to September), when the average air temperature ranges from 18°C to 28°C (64°F to 82°F) and the water temperature is around 17°C to 21°C (63°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!