The annual rate of inflation rose to 0.6% in October - a six-month high - the latest figures from the Central Statistics Office show.
The inflation rate had stood at 0.2% in September.
The CSO said consumer prices on an annual basis rose due to higher prices in restaurants and hotels for dining out and accommodation, while rents and the price of electricity and home heating oil also increased.
Transport costs rose last month on the back of more expensive petrol and diesel prices, while air fares also increased. These increases were partially offset by falls in the price of cars, the CSO noted.
October saw the cost of clothes and footwear falling due to sales, while some food products were also cheaper, including bread and cereals, chocolate, fish and soft drinks.
The CSO said that consumer prices on a monthly basis fell by 0.1% in October due to falls in transport costs and cheaper clothing and footwear.
Today's figures show that on an annual basis, housing, water, electricity, gas and other fuel prices rose by 3.1% in October, while prices in restaurants and hotels were up 2.7%.
Education costs increased by 1.8%, while prices for alcohol and tobacco rose 1.2%.
But prices for clothing and footwear dropped 4.7%, while furnishings and household equipment prices were down 3.6%. Food and non-alcoholic drink prices were also down 1.2%.