How to Say “Have a Nice Day” in Welsh

By Edward Everett • Updated October 2, 2026

cal dwrnod neis

cal dwrnod neis is the Welsh way to say "have a nice day".

This phrase is used as a way to say goodbye.

Meaning: goodbye (phrase)

Did you know?

Although it sounds pleasant, the ancestor of the word neis actually meant 'foolish' or 'ignorant' in Latin and Old French. It underwent a massive shift in meaning to become the positive word used today.

Examples in context

Pob hwyl i ti!
Have a nice day!
Mwynhewch eich diwrnod yn y parc!
Enjoy your day at the park!

Example conversation

Rhiannon and Rhys are finishing a conversation at a café.

Rhiannon

Mae'n amser i mi fynd nawr.
It is time for me to go now.
Rhys

Da iawn, Rhiannon. Cal dwrnod neis!
Very well, Rhiannon. Have a nice day!
Rhiannon

Diolch, Rhys. Ti hefyd!
Thanks, Rhys. You too!
Rhys

Hwyl am y tro!
Bye for now!

Sources

Word origins: Wiktionary entries cal, neis, CC BY-SA 4.0.

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About The Author

Edward Everett

Hello, I'm Edward! I'm quite the Welsh language enthusiast. When I'm not busy chasing my bachelor letters around the keyboard, I am usually out exploring the beautiful Welsh landscapes or making Welsh cakes at home. I get such joy from road tripping around Wales - Cardiff, Llandudno, Llanelli and Swansea are just a few of my favourite spots! I'm also a dedicated coffee bean enthusiast - you'll likely catch me in a local café indulging in my caffeine fix. I've made a concerted effort to help others master the Welsh language, so don't hesitate to connect and ask for any tips! Diolch!

Edward EverettHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.

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