Here is a repost from my other website Learn Moor About Bahia 
Disclaimer:  Before I list the seasons and different regions in Brazil it should be noted that the Equator runs through the Northern region of the country.  Most areas are very nice ALL YEAR including the Northeast (which includes Bahia), the Amazon, even Rio de Janeiro to the South.  Typical four season models do not apply.

Brazil Travel: main destinations

Amazon (the rainforest)
Pantanal (for bird and animal life watching)
Iguassu Falls (the world largest waterfalls)
Rio de Janeiro (the capital of fun and beach life)
Salvador da Bahia (musical and beach life in an afro-american style)
Bahia, Fortaleza, Recife: hubs for TOP WORL tropical beaches
Sao Paulo (the business and industrial heart of Brazil)
Brazil's South (Florianopolis, Santa Catarina and other south destinations)

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