I attended Sunday mass there late in August, my impression was it was a working church, with ushers, seats, and a surprisingly full congregation. But the other churches in the diocese seem to be closed unless it's their turn to host Sunday mass, so maybe there's a rotation. I expect it will be open Easter as it is the bishop's seat. Definitely contact the diocese in advance.

From June 1st to July 31st – 11.00 pm From August 1st to August 15th – 10.30 pm From August 16th to August 31st – 10.00 pm From September 1st to September 15th – 9.30 pm

They are unlikely to close the Cathedral entirely. It is a working church. There may be some scaffolding in places but you should still be able to get in and to wander around. It is a most beautiful place and you won't be disappointed. If part of the Cathedral is being cleaned or renovated and you can't see it then that is a perfect reason to plan a return. My bride and I always try to have something saved for "next time." That ensures that we return. Enjoy your trip!!!

Mass on Sunday 10:30

Yes however restrictions during Mass 10:30

The cathedral Notre Dame of Bayeux was dedicated with William the Conquer in attendance. The current building has many gothic and later additions. It is well worth seeing. It’s in Bayeux.

I'm sorry, I have no idea. We were not there during that time.

noi no siamo entrati nella chiesa -eravamo fuori a vedere l'albero della vita -che era bellissimo

Many thanks for the swift reply.