The New Zealand dollar fell ahead of the Reserve Bank's review of monetary policy, seen keeping interest rates at a record low and painting a picture of a deteriorating global outlook.
The New Zealand dollar fell to 77.77 US cents from 77.97 late yesterday. The trade-weighted index slipped to 68.75 from 68.98.
Reserve Bank Governor Alan Bollard will hold the official cash rate at 2.5 percent today, according to all 13 economists in a Reuters survey.
He may say there is no need to rush to hike rates given a more subdued global outlook, Europe's debt crisis and relatively tame inflation at home.
"An overall downbeat assessment of local and offshore developments may see the NZD under a little pressure," said Dan Bell, currency strategist at HiFX. "Global markets have had another quiet night awaiting further developments from the European Summit on Friday."
Investors are looking for concrete evidence that European leaders are committed to solving their fiscal crisis at tomorrow's summit.