National Tidal Unit

The National Tidal Unit (NTU) is the primary source of tide tables, tidal streams and tidal constituents provided to the Australian Hydrographic Service. The NTU also manages the national data archive for sea levels and tides.


NTU produces a range of products involving tidal and sea level processes:

The NTU is located within the South Australian Regional Office in Adelaide. Contact details are:

National Tidal Unit
Australian Bureau of Meteorology
PO Box 421
Kent Town SA 5071

Telephone: (08) 8366 2730 (9am-4pm SA Time, Monday to Friday)
Facsimile: (08) 8366 2651

Preserved in National Library of Australia PANDORA archive logo