"Comment allez-vous aujourd'hui?"
Here's a breakdown:
* Comment: How
* allez-vous: are you (formal)
* aujourd'hui: today
You can also use the informal version:
"Comment vas-tu aujourd'hui?"
This is used with friends, family, and people you know well.
Here are some other options, depending on the context:
* "Ça va?" (informal) - This is a very casual and common way to say "How are you?"
* "Comment ça va?" - This is slightly more formal than "Ça va?"
* "Comment te sens-tu aujourd'hui?" - This translates to "How are you feeling today?" and is a good choice if you want to express concern or ask about someone's well-being.
Remember to use the appropriate form of "vous" or "tu" depending on the level of formality and your relationship with the person.