The annual rate of inflation rate rose to 0.9% in September from 0.7% in August, new figures from the Central Statistics Office reveal today.
Inflation had moved above 1% for the first time in six years in March, but consumer prices have slipped back below 1% in the past three months.
The CSO said that consumer prices fell by 0.2% on a monthly basis in September.
Today's figures show that consumers paid higher rents and mortgage interest repayments in September as well as higher prices for the cost of gas. But the price of home heating oil fell last month compared to the same time last year.
Prices in restaurants and hotels also increased mainly due to higher prices for alcoholic drinks and food consumed in licensed premises and restaurants.
But these increases were partially offset by lower prices for hotel accommodation.
September saw higher health insurance premiums and more expensive prices in hairdressers, while prices for appliances, articles and products for personal care and motor insurance premiums fell.
The cost of buying clothes and footwear also decreased in September due to sales, while a range of products including milk, cheese, eggs, sugar, jam, honey, chocolate and confectionery also saw price decreases.