Zöllner said she expected the unemployment rate to rise towards 7 per cent in the short-term, before improving again in line with generally better economic conditions around the country.
Although recent surveys showed business confidence had increased, that was not translating into hiring activity, she said.
"Businesses are saying they intend to take on more staff but they're not doing that. They're wary of false dawns."
ANZ's job ad index was only 0.7 per cent last month higher than a year ago.
Continuing a market trend, internet ads rose by 0.5 per cent in June and are now 3 per cent higher than a year ago.
On the other hand, newspaper ads lost more ground with a 2.5 per cent drop.
Job ad numbers fell in Canterbury, despite a lift in newspaper advertising. Wellington saw an increase in both online and newspaper ads. In Auckland, newspaper ads dipped but internet advertising rose.
"Wellington advertising is slowly recovering from a minor slump, whereas Canterbury is not quite managing to hang onto a much higher level of advertising," Zöllner said.
Earlier this week, Auckland Council said the region was suffering 7.3 per cent unemployment, higher than 6.2 per cent national average.