Western Australia Surf Forecast by Craig Brokensha (issued Friday 30th December)

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Best Days: Swell magnets in the South West Tuesday morning, Saturday morning, Sunday morning

Recap

The weekend's long-range W/SW groundswell wasn't reported with any real size across the state which was a little disappointing. It was from a distant source, but still sets above 3-4ft should have been seen in the South West.

Saturday was OK in semi-protected spots, while Sunday was cleaner but small.

Today a new SW groundswell was on the build, a bit slow early but much better 4-5ft sets are breaking on the reefs in the South West now, with a gusty SE breeze. Perth and Mandurah remained tiny and there's no real increase in size expected that far north.

This week and weekend (Jan 3 - 8)

Today's increase in SW swell should ease back through tomorrow with favourable offshore E'ly tending E/NE winds ahead of an afternoon change, linked to a surface trough sitting just west of, drifting east.

Margs should see 3-4ft sets tomorrow morning, while Perth will be tiny.

A low point in swell and S/SE-S/SW winds will create poor conditions on Wednesday.

Our secondary small SW groundswell due Thursday across the coast is still on track, produced by a weak mid-latitude front currently approaching from the west.

A fetch of strong W/SW winds are being generated, and only a small SW groundswell is due to 3-4ft+ in the South West.

Winds look dicey for this swell with a S'ly tending W'ly breeze and this will be linked to a fast approaching mid-latitude front/low, bringing with it a large increase in stormy SW swell through Friday.

Messy 6-8ft+ surf should develop in the South West through the afternoon with choppy 2-3ft waves around Perth along with a strong SW tending S/SW breeze.

The low will move off quickly to the east overnight Friday and with this, lighter S/SE winds are due Saturday morning as the swell quickly eases, smaller Sunday with a SE offshore.

Longer term small SW groundswell energy will continue into next week, but more on this Wednesday.