High Quality Content by WIKIPEDIA articles! Vale do Itajaí also known as Vale Europeu (or "European Valley") is a mesoregion located in the Northeastern part of the Brazilian state of Santa Catarina. It has about 1.3 million inhabitants and comprises four smaller regions: Blumenau, Itajaí, Ituporanga and Rio do Sul. Most of the population is of German and Italian ancestry.Vale do Itajaí has a humid subtropical climate. The seasons of the year are distinct, with a well-defined summer and winter, and characteristic weather for fall and spring. Frost is infrequent, but occurs occasionally in winter. Because it is close the sea, relative humidity is 80% on average. There is significant precipitation which is well distributed throughout the year. The region is subject to floods. A major flood in 2008 caused over 100 deaths.