From the 1^st of February to 30^st of April and from the 1^st of October to the 31^st of December:
from 1:30 pm to 5:30 pm. Closed on Tuesdays
weekend : from 10 am to 12 and from 1:30 pm to 5:30 pm 

From the 1^st of May to the 30^th of June and from the 1^st to the 30^th of September:
from 10 am to 6 pm. Closed on Tuesdays

From the 1^st of July to the 31^st of August:
open every day from 10 am to 6 pm

NB : last admission 30 minutes before castle closing time.

Closed on 25th December and in January