Pasaia, Spain offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Pasaia is known for the Albaola Sea Factory of the Basques and the picturesque San Juan neighborhood. The best time to travel to Pasaia, Spain, is from June to September, when the average air temperature is around 70°F (21°C) and the water temperature is approximately 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!