About 1.45pm, a yellow and white Suzuki motorcycle and white Toyota Prado station wagon, collided on Rockingham Beach Road near Weld Street.
The rider of the motorcycle, a man in his 30s, sustained critical injuries and died at the scene.
The female driver and occupants of the Toyota Prado were not injured.
Major Crash investigators are urging anyone with any information relating to this crash, or who saw the yellow and white Suzuki motorcycle, or the white Toyota Prado travelling in the area prior to the crash, to contact Crime Stoppers on 1800 333 000 or online at .
Dash-cam or mobile phone vision relating to this crash, can be uploaded directly to investigators via this link:
If you or anyone you know has been affected by a road crash, contact Road Trauma Support WA on 1300 004 814.