Summer services update
Information Summer services update

Our offices and services will have reduced availability over the holiday period.  Read more about our holiday hours and services availability.

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 observationsNumber of years
Auckland2005 – 202319
Bluff2003 – 202119
Dunedin2005 – 202319
Gisborne2004 – 202117
Lyttelton2004 – 202319
Marsden Point2004 – 202319
Napier2005 – 202319
Nelson2004 – 202319
Onehunga2003 – 202319
Picton2005 – 202310
Port Chalmers2005 – 202319
Port Taranaki2005 – 202319
Tauranga2004 – 202319
Timaru2005 – 202319
Wellington2005 – 202319
Westport2015 – 20238
Last updated