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  1. Home
  2. Guidance
  3. Marine information
  4. Tide prediction guidance

Tide prediction guidance

Find the tidal levels for standard ports, information on reading tide predictions, and the periods of observation for our predictions. Standard port datum descriptions for New Zealand ports are also included here.

In this section I roto i tēnei wāhanga

  • How to calculate tide times and heights

    How to calculate the times and heights of and between high and low waters.
  • Standard port datum descriptions

    Find New Zealand's standard port chart datums. These are the datums used for stating the depths of the sea on nautical charts, including the level of the water at ports.
  • Standard port periods of observation

    Find the period over which tidal observations were analysed to produce our tide predictions.
  • Standard port tidal levels

    Find the standard tidal levels for ports around New Zealand.
  • Tide prediction formats

    Find out about tide prediction formats and how to interpret the values.
  • Tides glossary

    Definitions of common tidal terms.

Contact Kōrero whakapā

Got a query about our marine information? 

Email our Customer support team:

customersupport@linz.govt.nz

 

Related links Purongo

  • Tide predictions
  • Tidal stream predictions
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