The annual inflation rate in September was 4.3%, unchanged from August, according to the Central Statistics Office.
Prices increased by 0.3% compared with August. Clothing and footwear prices climbed by 4.3% following the end of summer sales, while telephone charges and mortgage interest repayments were also higher. The price of natural gas jumped 20% in the month.
But these rises were partly offset by a fall in transport costs as petrol and diesel prices and air fares came down. Petrol was down 0.9% in the month, while diesel fell 3.6% and air fares were down 8.2%.
The annual rate of inflation for services was 5.5%, while goods inflation was 3%.
The EU harmonised index of consumer prices (HICP), which does not include mortgage repayments, was also steady at an annual rate of 3.2%.