"The risk is the Fed will disappoint tomorrow and you'll see a (US) dollar sell-off, given the CPI print overnight," said Tim Kelleher, head of institutional FX sales NZ at ASB Institutional in Auckland. "The kiwi is on defensive ahead of GDP."
The kiwi fell to 88.36 Australian cents from 88.83 cents yesterday, with Australia's currency outperforming in the trading session.
ASB's Kelleher said the Australian dollar's gain was due "to the market's acceptance that (Malcolm) Turnbull is probably a better PM (Prime Minister)" than his predecessor, Tony Abbott, who he ousted this week.
The local currency increased to 4.0548 Chinese yuan from 4.0416 yuan yesterday, and gained to 76.71 yen from 76.27 yen. It slipped to 41.04 British pence from 41.33 pence yesterday, and edged up to 56.38 euro cents from 56.19 cents.