Ereira, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ereira is not widely recognized for travel and beach tourism. The best time to travel to Ereira, 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 the water temperature is 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!