Standard port periods of observation

Find the period over which tidal observations were analysed to produce our tide predictions.

The following table indicates the years for which tidal observations were obtained. The results of the analysis of that data have been used to generate the following predictions. The number of years of data analysed is also shown. Any difference between the Period of observations and Number of years analysed indicates data missing for one or more years.

Standard PortPeriod of ObservationsNo. of Years
Auckland2004 – 202519
Bluff2003 – 202519
Dunedin2007 – 202519
Gisborne2004 – 202519
Lyttelton2006 – 202519
Marsden Point2006 – 202519
Napier2007 – 202519
Nelson2005 – 202519
Onehunga2005 – 202519
Picton2005 – 202513
Port Chalmers2007 – 202519
Port Taranaki2007 – 202519
Tauranga2006 – 202519
Timaru2007 – 202519
Wellington2007 – 202519
Westport2015 – 202510
Last updated