Southern Brazil reaches Iguazu Falls' Brazilian side from Foz do Iguaçu, the Curitiba botanical gardens, Florianópolis's Lagoa da Conceição beach culture, and the German-Italian colonial heritage of Gramado in Serra Gaúcha.
Iguazu Falls at moderate to high flow, Florianópolis beaches packed with Brazilian summer crowds December-February, and Gramado Christmas events Natal Luz November-January.
Autumn brings vineyards in Serra Gaúcha at harvest, Iguazu still high flow, and Florianópolis beaches accessible without summer crowds.
Cool dry winter with Gramado Christmas in July festival, Iguazu Falls at moderate flow, and Florianópolis surf at peak Atlantic swells.
Florianópolis Carnival season builds with parades through February, and Iguazu's wet-season high flow drops gradually as summer storms ease.