Gafanha do Carmo, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Gafanha do Carmo is known for its proximity to beautiful beaches and the scenic Ria de Aveiro lagoon. The best time to travel to Gafanha do Carmo, Portugal, is during late spring to early autumn (May to September), when the average air temperature ranges from 18°C to 25°C (64°F to 77°F) and the average water temperature is around 17°C to 20°C (63°F to 68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!