Official figures show that the annual rate of inflation fell back to 4.6% in September from 4.8% in August. This was the lowest figure since November last year.
The Central Statistics Office said prices rose by 0.3% compared with August, with clothing and footwear prices rising by 4.7% following the end of the summer sales.
Higher medical and house insurance prices were also a factor in the monthly increase, though these were partly offset by a 0.9% fall in transport costs due to lower petrol prices and air fares.
The EU's harmonised inflation rate rose, however, from 2.3% in August to 2.9%. This measure excludes mortgage repayments.
