In the short term, the kiwi could decline further towards 85 Australian cents although it is likely to trend up again over the next few months to the 86-88 cent level, he said.
"The kiwi/Aussie has been quite stretched on the topside so we view this as a healthy correction," Tuck said. "The levels now are more consistent with the fundamentals."
Stronger US economic data is also weighing on the kiwi, suggesting the Federal Reserve will start to taper its US$85 billion a month bond buying programme this month. A report in the US yesterday showed manufacturing grew last month at the fastest pace in more than two years.
Meanwhile, prices of dairy products fell in the latest GlobalDairyTrade auction this morning, though volumes held up, extending the elevated levels that saw Fonterra Cooperative Group report record sales last month.
At 10:45am the Statistics department will release a report on the value of building work for the June quarter.
The New Zealand dollar declined to 77.58 yen at 8am in Wellington from 77.76 yen at 5pm yesterday. The kiwi slipped to 59.11 euro cents from 59.32 cents yesterday and fell to 50.03 British pence from 50.31 pence. The trade-weighted index weakened to 73.90 from 74.21.