NIWA's Tide forecaster provides tidal data for any point in New Zealand.
Use this utility to forecast high and low tides anywhere in open coastal and ocean waters around New Zealand for up to 31 days. It also predicts historical tides back to 1830. This current version does not cover tides inside harbours and estuaries.
The Tide Forecaster uses a computer tide model developed by NIWA under various contracts from the New Zealand Foundation for Research, Science & Technology and with assistance from LINZ.