Winter opening hours are currently in effect: Duino Castle is open on weekends (Saturday and Sunday) and public holidays from 9:30 a.m. to 4:00 p.m. (unless otherwise indicated). It can be opened by appointment for organised groups.
The tourist season resumes on Saturday 14 March 2026. From this date onwards, the Castle will be open every day at the following times:
- from 14 to 31 March: 9:30 a.m. to 4:00 p.m.
- from April to September: 9:30 a.m. to 5:30 p.m.
- First half of October: 9:30 a.m. to 5:00 p.m.
- Second half of October until 2 November 2026: 9:30 a.m. to 4:00 p.m.