Tui, Spain offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Tui, Galicia, Spain, is known for its well-preserved medieval architecture and the Tui Cathedral. The best time to travel to Tui, Spain, is during late spring to early autumn (May to September) when the average air temperature ranges from 60°F to 75°F and the water temperature is around 60°F to 70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!