Rottnest Island wave data
Find out about wave data at Rottnest Island, including current and historical wave directions, and significant wave heights.
Rottnest Island sea and swell directional graph
The bearing of the arrow indicates the direction of the sea and swell. The point of the arrow indicates the period of the sea and swell.
Rottnest Island historical wave direction graph
The coloured circles indicate the changes in sea and swell direction over time.
Rottnest Island significant wave height graph
The significant wave height is the average height of the highest one third of waves recorded. It is often the wave height reported by an experienced observer.
Tide predictions and resources
Find out about annual tide predictions at various locations along Western Australia's coast. All data provided is subject to DoT's disclaimer, conditions of use and copyright policy.
About wave data
The wave climate at any location can be, and usually is, a combination of sea and swell and is often referred to as the total wave.
The graphs below provide information on sea waves and swell waves. They are updated as near to real-time as possible.
The near real-time wave data is downloaded from recording sites and graphics created for the web using software developed by Tremarfon Pty Ltd.
All data provided is subject to the Department of Transport's Disclaimer, conditions of use and copyright policy.