Western Australia Surf Forecast by Craig Brokensha (issued Monday October 10th)

Best Days: Perth and Mandurah tomorrow morning, Thursday morning for the keen in the South West, but more so Friday morning, Saturday morning in the South West

Features of the Forecast (tl;dr)

• Mix of mid-period SW and S/SW swells easing tomorrow with strong S/SW winds (weaker and S/SE-SE in Perth and Mandurah in the AM)
• Easing surf Wed with fresh S/SE winds in the South West, a little weaker to the north
• Small Thu with E tending SW winds
• Small new mid-period SW swell Fri with light E/SE-E/NE tending W/SW winds
• Easing surf on the weekend with E/SE tending S/SW winds Sat, strong S/SE Sun
• New moderate sized SW swell Mon with SE tending S/SW winds
• Possible larger S/SW groundswel for Tue PM

Recap

Clean conditions and fun surf easing from 3-5ft across the South West Saturday morning before conditions quickly deteriorated, poor yesterday. Mandurah was a clean, fun 2ft, and Perth hung in a little better than expected with 1-2ft sets. Both coasts saw variable winds yesterday morning and clean, tiny 1-1.5ft waves.

Today we've got onshore winds across all locations as a weak low impacts us, bringing an increase in localised swell.

This weekend and next week (Oct 8 - 14)

The low linked to the current strengthening onshore winds and building swell was stronger and a better swell producer on the weekend, with the better mid-period energy due to strengthen this afternoon and peak into the evening.

We'll see this swell ease through tomorrow, but a strengthening of the low to our south-southwest today will produce some additional S/SW swell to the mix.

Regardless, conditions will remain poor and onshore from the S/SW tomorrow, strong in the South West, but Perth and Mandurah should see weaker, more favourable S/SE-SE winds.

Size wise, easing 6ft+ waves are due in the South West, 2-3ft in Mandurah and 2ft across Perth. This will be well worth a paddle in the metro locations.

Wednesday will be smaller and weaker as winds slowly improve, tending fresh S/SE across the South West but protected spots will be tiny. Perth and Mandurah look to see similar S/SE winds but with tiny surf. Thursday will be cleaner but with 3ft leftovers in the South West.

Looking into the end of the week, and the low I identified on Friday has fallen apart. Instead of strengthening it now looks to be a very average swell producer at best.

Pre-frontal NW gales will see some small swell spreading radially out towards on Friday, offering a little boost in heights across the South West to 3-5ft max, tiny to the north.

Winds are a little dicey as a trough clips us before dawn, but we should see a light E/SE tending E/NE breeze in the morning ahead of sea breezes.

Longer term there's nothing too significant on the cards with cleaner conditions due on the weekend but with smaller, easing surf from Friday.

A couple of moderate sized pulses of mid-period swell are due into early next week, but of greater importance is a possible larger S/SW groundswell for Tuesday. We'll have to take a closer look at this on Wednesday.