China also publishes March data on retail sales, industrial production and fixed asset investment, all scheduled for release at 2pm New Zealand time.
"G10 FX will be at the mercy of Chinese data, particularly over the next 24 hours," Kathy Lien, managing director of foreign exchange strategy at BK Asset Management, said in a note. "The pace of Chinese growth will not only affect commodity currencies but could also have a significant impact on overall risk appetite and in turn other major currencies such as the dollar, euro and British pound."
The prospect of slower Chinese growth also weighed on the Australian dollar overnight. China is Australia's largest trading partner and the Aussie is considered a proxy for the Chinese currency.
The New Zealand dollar gained to 92.31 Australian cents from 92.10 cents yesterday.
In New Zealand today, the focus is on first quarter inflation figures scheduled for release at 10:45am. Economists are expecting a 0.5 percent rise in the quarter and it would take a surprise of 20 basis points to impact the currency, said Westpac's Speizer.
The kiwi slipped to 51.66 British pence from 51.74 pence yesterday, dropped to 62.55 euro cents from 62.60 cents and weakened to 87.98 yen from 88.15 yen.