Retail sales in June rose 0.1% mainly due to higher petrol sales.
For the three months to June, retail sales rose 1.1%, or $174 million.
If sales of vehicles and related goods and services are excluded, retail sales fell 0.4% - the first fall since February.
In May, sales had grown 0.7%, inflated by a surge in clothing sales due to earlier-than-usual cold weather.
The increase in June was the third consecutive monthly rise.
Total sales volumes were up 0.4% in the three months to June, underlining the improvement in consumer confidence beginning to slowly take hold. Economists had expected a 0.1% increase in sales volumes.