The Thomson Reuters/University of Michigan final consumer sentiment index decreased to 87.2 in September from 91.9 in August, up from the preliminary estimate of 85.7 and beating expectations a decrease to 86.7. It was the lowest reading since October 2014.

"Consumers now believe that that global economic trends can directly influence their own job and wage prospects," the Surveys of Consumers chief economist at the University of Michigan Richard Curtin.

The current economic conditions index declined to 101.2 in September from 105.1 in August, up from a preliminary reading of 100.3.

The index of consumer expectations fell to 78.2 in September from 83.4 in August, up from a preliminary reading of 76.4.

The inflation expectations for the next year remained unchanged at 2.8% in September.