Sao Paulo-I'm going to spend there the whole September -any suggestions what to do,what I shouldn't miss etc..

São Paulo is Brazil's most cosmopolitan city, with sundry cultural and culinary attractions to satisfy all tastes. Local papers like the Estado de São Paulo publish entertainment supplements on Friday. The newsmagazine Veja publishes a city magazine supplement that comes out on Sunday. Get those and see what's happening in town.

For a more general view of what São Paulo offers, follow the link below.

Why? Do you HAVE to stay there the whole month? At least take a trip to Rio, it's only 6 hours by bus.

While you are there, check the museum, the Ibirapuera park, Bairro da Liberdade (Chinese district), the Italian community, and I think Cirque Du Soleil it's going to be there around that time.