Western Australia Surf Forecast by Craig Brokensha (issued Monday 4th March)

Best Days: Tuesday, Wednesday, Friday morning across the South West

Recap

Large wind affected and good surf across the South West in protected spots Saturday morning, great and 2-3ft in Mandurah, a touch smaller in Perth.

Yesterday was pumping across the South West with a drop in size back to 4-6ft with a straight offshore wind, 2ft in Mandurah and 1-2ft in Perth. Today was still 4-5ft across Margs but bumpy with a bit more south in the wind, cleaner and better to the north.

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This week and weekend (Mar 5 - 10)

The next couple of days look great across the state, with a new large building SW tending S/SW groundswell and offshore winds.

This swell was generated since Friday evening, with a deep and powerful low forming north of the Heard Island region, generating a fetch of severe-gale to storm-force W'ly winds in our south-western swell window.

The storm is currently weakening south of us, but continued to generate a fetch of gale to severe-gale W/SW winds until moving east out of our swell window.

A large long-period SW tending S/SW groundswell will fill in tomorrow, building rapidly and reaching 10-12ft across the South West swell magnets, 3ft+ in Mandurah and 2-3ft in Perth.

Winds will be fresh and gusty out of the SE tomorrow morning, favouring slightly protected spots, possibly holding all day if not tending a little more S/SE.

Wednesday will be excellent as the swell eases with an E/NE offshore across all locations, swinging S/SE into the afternoon. Margs should ease from 6-8ft, 2-3ft in Mandurah and 2ft in Perth.

The surf is due to become smaller Thursday but with less favourable S/SE winds.

Friday will become cleaner with an E/SE offshore, but the surf will remain on the small side. A small mid-period S/SW swell will fill in through the day, though only likely keep south magnets around 3-4ft, easing from a similar size Saturday.

This swell will be generated by a strong but late forming low in our southern swell window, with no size due around Mandurah or Perth.

Longer term some better sized S/SW groundswells are on the cards for early next week, producing by strong polar fronts forming late in our swell window.

Winds are a little tricky at this stage, so check back here Wednesday for more details.