The figure was 0.1 percentage point lower than forecast by economists polled by Poland’s PAP news agency.
In September, the prices of consumer goods and services in Poland were 17.2 percent higher than in the same month a year earlier, according to the state-run Statistics Poland (GUS) agency.
In August, Poland's consumer price index stood at 16.1 percent, Statistics Poland reported.
The Polish central bank’s Monetary Policy Council last month raised key interest rates for the 11th consecutive time in a bid to tame inflation.
(gs)
Source: PAP