Cardiff Castle Opening Times 2025. The castle is surrounded by artificial lakes. Find out more about our ticket prices, including the annual pass and how you can get your own castle key!

Cardiff castle opening times explore cardiff castle any day throughout the year, including school and bank holidays, except for christmas day (25 december), boxing day (26 december), and new year’s day (1 january) when they’re closed. Depot in the castle 2025.