Thanks for visiting the Google Nest community.
Good question! We appreciate your interest in having additional language on the Google Home/Nest devices. We don't have news to share on when Portuguese language will be available but we're always looking for ways to improve and we'll take this as feedback. Please stay tuned on our social channels for updates and announcements.
I also suggest that you send feedback via voice command by saying "Hey Google, send feedback" or by following the steps on this link.