National datasets

Output Product

Australian National Tide Tables (AHP11)


The Australian National Tide Tables (ANTT, otherwise known as AHP11) contains information for over 80 Primary (Standard) ports and over 680 Secondary ports in Australia, Papua New Guinea, Solomon Islands, Antarctica and Timor-Leste. This information includes but is not limited to:


  • Predictions for high and low water for each day of the year for over 80 Standard Ports.
  • Predictions of maximum rates of tidal streams for Torres Strait and Port Phillip Heads.
  • Tidal Stream diagrams for Sydney, Broome and Darwin.
  • List of the main 22 harmonic constituents for all Standard and Secondary Ports.
  • Tidal levels and time difference for all Secondary ports in relation to the relevant Standard Port. Suitability


National coverage of Australia excluding territories.