The central bank has raised its main two-week repo rate to 1.25 percent in five steps since August 2017 and it is expected by analysts to tighten it further amid strong growth and inflation well above the 2 percent target.

"On balance, I think there is probably some room for monetary policy tightening in the short term, but it should be done with a lot of caution," Oldrich Dedek was quoted as saying in an interview.

"It shouldn't be a race to get to some kind of a neutral level as fast as possible."

Several central bankers have said that a neutral level for the main rate could be seen at 2.5-3 percent.

Dedek declined do say in the interview whether he had already made up his mind on how to vote at the next rate-setting meeting on Sept. 26.