Setting tide watches

I've had tide watches previously and they have been reasonably easy to set.

However I have a new G-shock Gulfman and to set the tide I need the "Lunitidal Interval" for Perth
The manual does not include this info for Perth; Melb, Syd, Cairns yes but nothing for the West Coast. I've also tried "googling" it and still had no luck

Can anyone help

Cheers

Try this handy site with the intuitive url

www.hydro.gov.au/prodserv/tides/lunitida...itidal-intervals.htm

Good luck on your mission...