How to Say "Good Night" in Portuguese

boa noite

/ˈbo.ɐ ˈnoj.t͡ʃi/

In Portuguese, good night is said as boa noite.

Boa noite is the standard and most widely used way to say good night in Portuguese.

Meaning: a farewell (phrase)

What does it mean word for word?

The phrase is composed of the feminine adjective boa (good) and the feminine noun noite (night).

Because noite is a feminine noun, the adjective must be the feminine form boa rather than the masculine bom.

/ˈbo.ɐ ˈnoj.tʃi/

Unlike English, where 'good night' is strictly a farewell at the end of the evening, in Portuguese, boa noite is also used as a greeting when arriving at a venue or meeting someone after dark.
In certain Portuguese-speaking contexts, if you call a person a boa, you might be referring to a large snake, specifically the Boa constrictor, rather than describing them as 'good'.
In Brazil, if you are saying boa noite to a close friend or family member, you might shorten it to just noite in very casual settings.

Dê boa noite, Tom.
Say good night, Tom.
This sentence shows how to use boa noite when telling someone to say it.
Tatoeba #5946673 by Ricardo14, translation #3371181 by CK
Adeus e boa noite.
Goodbye and good night.
This sentence uses boa noite as part of a goodbye.
Tatoeba #11136886 by carlosalberto, translation #11136879 by carlosalberto
Eu disse boa noite.
I said good night.
This sentence uses the past tense of the verb to show that boa noite was said.
Tatoeba #2576132 by marcospcruz, translation #2405824 by CK
Boa noite! Aproveite o seu descanso.
Good night! Enjoy your rest.
Durma com os anjos e sonhe com as estrelas!
Sleep with the angels and dream with the stars!
38 more sentences on Tatoeba

Juliana and Lucas are leaving a small dinner party.

Sources

Wiktionary, “good night” translations and entries boa noite, CC BY-SA 4.0, dump of 2026-09-26.
Word origins: Wiktionary entries boa, boa noite, noite, CC BY-SA 4.0.
Example sentences: Tatoeba CC BY 2.0 FR.

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