Learn Portuguese
as it's spoken on the street.

European and Brazilian Portuguese are mutually intelligible and sound like different languages in practice, and Brazil itself splits again: São Paulo and Rio de Janeiro do not speak the same Portuguese either.

Lisboeta Portuguese compresses. Unstressed vowels get swallowed or dropped entirely (obrigado becomes brigado in fast speech), the nasal vowels stand out more because everything around them reduces, and the overall rhythm runs faster and tighter than Brazilian Portuguese. Learners trained on Brazilian Portuguese often need real recalibration time before Lisbon stops sounding like a fast mumble and starts sounding like language.

São Paulo speaks Paulistano: flatter, faster, and more clipped than Rio, shaped heavily by the city's Italian and Japanese immigrant communities, whose vocabulary shows up constantly (Italian loanwords throughout, Japanese loanwords in food culture like temaki and yakisoba). Você is the default second person almost everywhere in the city, and the overall register leans direct and business oriented, matching São Paulo's identity as Brazil's economic capital.

Rio speaks Carioca, the accent most people picture when they imagine Brazilian Portuguese at all: s sounds before consonants and at the end of syllables shift to sh (vamos becomes vamosh, está becomes eshtá), the intonation is musical and warm, and beach culture vocabulary (maneiro, véi, mermão) is baked into everyday conversation.

Three cities, three noticeably different sound systems and vocabularies, one grammar underneath all of it. Learn the city you are landing in first. Once your ear is calibrated to one variety, the others become easier to hear as variations rather than confusion.