Yes, you are right, it's a lovely day. (Oui, vous avez raison, c'est une belle journée)
I hope you had a good day In french: J'espere que la journee a etait bonne (pour vous) or J'espere que vous avez passe une bonne journee
This means "I wish you (or you all) a very good day"
C'est vous means 'It is you'.
Did you have a nice day?
Cest Bonn Pour vous = it is good for you
Vous êtes belle means "You are beautiful"
You can say both, the second is more polite.
vous, vous êtes belle
vous, une si belle (femme) is you, a so beautiful (woman) in English.
Et vous êtes une belle fille - and you are a beautiful girl.
comment allez vous ? Votre journee a t elle ete bonne ?
"Vous estes belles" doesn't mean anything. I would imagine the person is trying to say "vous etes belle", which would mean "you are beautiful".