The South West will remain onshore until Tuesday, but there's better conditions expected in Perth and Mandurah along with plenty of swell for the coming days.

The surf will slow up in size, power and consistency over the coming period but there'll be options across both regions as it does so.

A vigorous front will push east of Bass Strait tonight, and strong to gale force W/SW winds in its wake will generate a flukey south swell for Southern NSW.

A small to tiny run of surf with generally favourable conditions continues.