The head of the governing body for world football has been highly critical of the speed of progress in South America, with the construction of stadiums, transport infrastructure and hotels running behind schedule.
The 76-year-old's comments come just weeks after Fifa general secretary Jerome Valcke was criticised for stating that Brazil needed a "kick up the backside" to get everything ready on time.
On Thursday, Brazil's lower house passed the much-anticipated World Cup bill, but Blatter admitted that he has grown tired of the saga.
"At least the World Cup bill has been passed," Blatter is quoted by Globoesporte as saying.
"Now it is up to them. We want actions - not just more words."
Meanwhile, Valcke admitted that fans and members of the press may have to seek accommodation in cities close to where the matches will be held if hotel demands exceed the limits.
How do you stay up with football when on the move? With http://m.goal.com – your best source for mobile coverage of the beautiful game.