NSW Ocean Tide Data Collection Program

MHL collects tide data at continuously recording sites along the NSW coast and on Lord Howe and Norfolk Islands shown on the map below.
The Ocean Tidal Data Collection Program provides water levels which are a measure of the ocean tide. The program is based on a network of automatic ocean tide level recording stations.



For more information on coasts, estuaries and floods visit environment.nsw.gov.au.

The following plots show the present tidal residuals along the NSW coast. The tidal residual or anomaly is the difference between the measured tide and the predicted tide and therefore shows the present deviation of the measured tide from predicted tide.