The Seleccao will aim to win the tournament for the first time this summer in the South American country, and Ronaldo says he is looking forward to playing there.
“To compete in the World Cup in a brother country like Brazil is appealing,” the 29-year-old wrote in a blog for Sportlobster.
“Portugal and Brazil have historical connections and both countries speak the same language. Therefore, I think it will be a fantastic experience and I believe Brazilians will also support us.
The Ballon d'Or winner also went on to discuss his side's chances at the tournament, bearing in mind their tough Group G opponents - Germany, Ghana and the United States.
“In my opinion, we have the strongest group of the World Cup, but we should take it one step at a time,” said the forward. “Our goal is obviously to pass the group stage and then we’ll see.
“We arrived in Brazil with hope, but we will also make sure our feet stay firmly on the ground.”
Ronaldo also talked about his pride at captaining his national side.
“It is with enormous pride I represent and captain the Portuguese national team,” he added. “It fills me with pride, satisfaction, pleasure and honour, but it is also a big responsibility.
“It is the country which is at stake and we understand an entire nation – composed of 10million Portuguese and those living abroad – have their eyes fixed on us.
“I confess there are feelings which don’t change much as the years roll. I continue to shiver as soon as I hear the Portuguese anthem.”