Borba de Montanha, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Borba de Montanha is not particularly known for travel and beach tourism. The best time to travel to Borba de Montanha, Portugal, is during late spring to early autumn (May to September), when the average air temperature ranges from 20°C to 30°C (68°F to 86°F) and water temperatures in nearby coastal areas are around 18°C to 22°C (64°F to 72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!