Yes, the official language of Brazil is Portuguese. However, if you decide to travel around the heartland of South Brazil, you will hear many different sounding dialects that are strongly influenced by the languages German, Italian or Spanish.
We are talking specifically about Rio Grande do Sul. This region is where the indigenous people, the Guaranis used to live, colonized by the Spanish and Portuguese and populated by Germans and Italians, live. Each of these groups have contributed to what today is the culture and dialect of the state. Is important to note that those born in Rio Grande do Sul are called “gaucho” and the culture is denominated by “cultura gaúcha”.
For those who are curious about how this multiculturalism happened, check out: http://en.wikipedia.org/wiki/Rio_Grande_do_Sul
This state borders Argentina and Uruguay, which is why it is possible to stumble into some “castellano” or in other words, derivates from these dialects, when walking through the borders of gaúchos’ fields.
Approximately in the year 1824 the first German immigrants arrived , and in 1875 arrived the firsts Italians. In the mountaineer and central region of the state there is a predominate Italian dialects as well as Italian customs. In the region of Vale dos Sinos mostly German immigrants are settled. Until recently many families and geriatrics speak these dialects which are transmitted generation to generation. It is possible to find out more about this influence of languages on the website http://www.dw-world.de/dw/article/0,,1174391,00.htm
This is gaúcha’s culture. This is also Brazil!