Achada do Gamo, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Achada do Gamo, Beja, Portugal, is known for its proximity to the Guadiana Valley Natural Park. The best time to travel to Achada do Gamo, Portugal, is in late spring or early autumn when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!