December and January in Brazil are midway through the summer season with Christmas vacations and warm weather pushing up prices. Crowds and prices peak for the Rio carnival, which takes place in February or early March.
It tends to be hotter the further north you are and cities like Manaus, in the Amazon, maintain a fairly consistent 30 degree high all year round whereas temperatures in São Paulo, for example, will start to dip as you move into April and May.
The warmer months of the year are also the wettest with wildlife watching in regions such as the Pantanal pretty much out of the question due to access routes suffering as a result of excessive rain. Visiting the Amazon is going to be a hot and sticky experience whenever you visit; the rainy season here floods the forest which means you'll just be exploring in a boat rather than on foot.
Conversely, Brazil's winter season, which starts in June, experiences the least amount of rainfall and the higher up and the further south you get the chillier temperatures become with several resorts shutting up shop, despite of the July winter break for schools and universities.
August can be exceptionally busy thanks to the influx of visitors from the Northern Hemisphere however, once traditional European vacations are over, September and October are usually seen as the best months to visit Brazil, especially for jaguar spotting in the Pantanal.
November finds temperatures and rain levels creeping up across the country.
The Olympics take place from the 5th – 21st August 2016 and unlike the 2014 World Cup, events are to be held just in Rio de Janeiro, apart from, ironically, the football matches.
Barra da Tijuca, Deodoro, the Copacabana and the Maracanã are the four locations where the action happens with football matches being played in venues across Sao Paulo, Salvador, Brasilia and Belo Horizonte, as well as Rio’s Maracanã.
The Paralympics take place from the 7th – 18th September 2016 and again are held solely in Rio within the same four regions highlighted above.
August is one of the best times to visit Brazil due to the comfortable temperatures and lack of rain however, as you can imagine, 2016 is going to get busy so plan your travel plans accordingly.