Western Australia Surf Forecast by Craig Brokensha (issued Wednesday 27th December)

Best Days: Protected spots Thursday morning, Friday morning Margs and Mandurah, Margs Saturday morning

Recap

Small onshore waves across the South West, tiny to the north. Today some new W/SW swell has filled in with good sized but onshore 5-6ft surf in the South West and 2ft+ waves across Mandurah, tiny early around Perth, but now a bit bigger but onshore.

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This week and weekend (Dec 28 - 31)

Today's increase in W/SW groundswell should ease back into tomorrow, only to be replaced by some new SW groundswell, produced by a relatively weak but favourably tracking polar front up towards us the last couple of days.

This front is currently south-west of us, and will be followed by one final front, generating a reinforcing S/SW groundswell for late in the day Friday and more so Saturday morning.

But back to tomorrow and we should see sets hanging in at 5-6ft across the South West with 2ft waves around Mandurah and 1-2ft sets in Perth.

A drop in size should be seen Friday, slowed into Saturday with the reinforcing S/SW groundswell. This should keep sets up around 4-5ft in the South West, 1-1.5ft in Mandurah and 1ft+ in Perth.

Winds will slowly improve over the coming days as a high moves in from the west. We'll see S/SE to possibly SE winds across the South West tomorrow (SE further north) favouring slightly protected spots, while Friday should see better SE breezes around Margs during the morning, E/SE to the north.

Saturday looks cleanest across the South West with an E/SE offshore and that fun S/SW groundswell.

Unfortunately winds will revert to the S/SE-SE from Sunday through most of next week as an inland surface trough squeezes a high to our west.

The surf will ease further Sunday, with a slight bump in SW energy Monday from a small tight low traversing the southern Indian Ocean.

Longer term there's nothing too major on the cards with small to moderate levels of SW swell on the cards from background frontal activity. More on this Friday.