sentence: the second biggest pride parade in brazil is rio de janeiro gay pride parade , numbering about 2 million people , traditionally taking place in zona sul or rio 's most affluent neighborhoods between the city center and the world-famous oceanic beaches , which usually happens in the second part of the year , when it is winter or spring in the southern hemisphere , generally characterizing milder weather for rio de janeiro ( about 15 °c in difference ) , except for some storm and cold fronts which occasionally came from southerly latitudes through the year but most commonly in winter .