How are you doing today in portuguese?

There are a few ways to say "How are you doing today" in Portuguese, depending on the formality and region:

Formal:

* Como está hoje? (Formal, used for someone you don't know well or someone older)

* Como vai hoje? (Formal, also used for someone you don't know well or someone older)

Informal:

* E aí? Tudo bem? (Informal, used with friends or people you know well)

* Como está? (Informal, used with friends or people you know well)

* Tudo bem? (Informal, used with friends or people you know well)

In Brazil, you might also hear:

* Tudo sussa? (Informal, meaning "Everything cool?")

You can also use "Bom dia," "Boa tarde," or "Boa noite" depending on the time of day, before asking "Como está?"

For example:

* Bom dia, como está? (Good morning, how are you?)

* Boa tarde, como vai? (Good afternoon, how are you?)

* Boa noite, como está? (Good evening, how are you?)