The increase in the inflation rate is mostly due to a rise in prices of fuel and electricity.
On a monthly basis, consumer prices edged up 0.1 percent, the same as in August.
The harmonized index increased 0.1 percent year-on-year, compared to a 0.3 percent fall in August and lower than market expectations of a 0.2 percent rise. The monthly index jumped 0.8 percent after being flat in the previous month.