New figures from the Central Statistics Office show that consumer prices rose at an annual rate of 0.6% in November.
The annual rate of inflation has now been positive for four months in a row after more than 18 months of falls in prices.
The CSO says that prices decreased by 0.1% in November compared to October.
The factors behind the fall in monthly prices included lower prices for spirits and alcohol sold in off-licences and supermarkets.
Hotel accommodation prices were 3.9% lower, while the price of second-hand cars also fell.
But prices of clothes and footwear rose by 1.9% last month.
Rents fell by 1% from October, while transport costs dropped by 0.3%, despite slight increases in petrol and diesel prices.
Mortgage costs were unchanged from October, though they have risen by almost 25% over the past year.
The CSO says that the annual rate of inflation for services was 2% in the year to November, while goods decreased by 1.1%.
