Portimao, Portugal offers 9 beaches perfect for sunbathing, surfing, swimming, and more. Portimao is known for its stunning beaches and vibrant marina, making it a popular destination for travel and beach tourism. The best time to travel to Portimão, Portugal, is from May to September, when the average air temperature ranges from 20°C to 28°C (68°F to 82°F) and the average sea temperature is between 18°C and 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!