Slow outlook with good winds for exposed spots to end the week

Craig Brokensha picture
Craig Brokensha (Craig)

Western Australia Surf Forecast by Craig Brokensha (issued Monday 30th March)

Best Days: Margs Tuesday morning through Friday morning, Margs Monday morning


Average start to the weekend with little to no swell, lifting a touch through the afternoon but with average winds. Sunday was much better as a good new SW groundswell filled in, building from a clean 4-5ft in the South West and 1-1.5ft in Perth. The swell peaked through the afternoon/evening but remained solid this morning across Margs to 4-6ft, with 1-2ft surf in Perth and waves in the 4ft range around Gero with early favourable winds. Conditions deteriorated pretty quickly through the day in the South West though as a S/SW change pushed through.

This week (Mar 31 – Apr 3)

A general easing trend in swell is due through this week across all coasts, with a long-period signal showing on the charts tomorrow having no considerable size, while a mid-period SW swell Wednesday will also lack any decent push, generated by a weak front currently pushing towards us.

Margs should ease from 3-5ft tomorrow, steady at 3-4ft Wednesday and then drop from 3-4ft Thursday morning, backing off from a slow weak 3ft Friday. Perth will become tiny with 1-1.5ft waves tomorrow and 1ft+ surf Wednesday, tiny into the end of the week.

Winds are looking dicey up around Gero and from the S/SW tomorrow morning, with better SE winds around Perth and Margs, possible E/SE at periods early before freshening from the S'th from late morning.

Wednesday looks good across most spots with fresh E/SE offshores (SE tending E/SE around Margs) and then Thursday will be good at more exposed breaks with an E/NE offshore. Friday will probably see a touch more north in the wind, favouring swell magnets as the swell becomes smaller.

This weekend onwards (Apr 4 onwards)

There's nothing significant due over the weekend, with a slight kick in small SW groundswell due in the South West to the 3-4ft range through the day but with poor S/SE tending S/SW winds.

A slightly better increase in SW groundswell is due Sunday from a weak but long-lived polar frontal system firing up from the Heard Island region. An increase to 3-5ft is due Sunday afternoon, with Perth pulsing to 1-1.5ft late with the swell peaking Monday morning up at Gero to 2-3ft. Winds will remain average and from the S/SE to S/SW though, becoming cleaner Monday with E/SE offshores.

Longer term there's nothing significant at all for next week as a large blocking high deflects frontal systems away from our swell window, and our far swell window remains void of any significant activity. We may see a break in the pattern into the week starting the 13th, but we'll review this Wednesday.