Western Australia Surf Forecast by Craig Brokensha (issued Wednesday 15th July)

Best Days: Thursday morning protected northern corners, Saturday morning

Recap

Fun waves yesterday across the South West with a reinforcing S/SW groundswell to 4-6ft with offshore winds, while Perth was tiny and around 0.5-1ft.

This morning the swell was smaller and only around 3ft in the South West with 1ft sets in Perth. A new inconsistent SW groundswell has since built in the South West with easy 4-5ft sets across exposed breaks under favourable winds.

This week and weekend (Jul 16 – Jul 19)

Our better pulse of SW groundswell due into tomorrow afternoon across the South West and Perth is still on track, but so are the poor winds.

This swell, generated by a fetch of gale to severe-gale pre-frontal W/NW winds in the Heard Island region, should build to 6ft on the sets at exposed spots into the afternoon, with Perth only offering inconsistent 1-1.5ft waves.

A strengthening NE tending N/NE wind will limit surfing options to only a selected few breaks unfortunately, with strong N/NE winds ahead of an afternoon W'ly change Friday (more N/NW around Perth).

Into Saturday winds should tend variable across the South West, with NE winds further north, and a weak W/SW swell is due off the low responsible for the poor N'ly winds into the end of the week.

A small tight fetch of strong to gale-force W/SW winds will produce a short-lived pulse of W/SW swell for Friday, peaking through the morning to 4-5ft in the South West and 1-2ft in Perth, before fading into Sunday. A smaller and less consistent W/SW groundswell will take its place into Sunday afternoon though, generated by a very intense but small mid-latitude low north-west of Heard Island today.

This should kick the South West back to an inconsistent 4-5ft, with 1ft sets in Perth. Winds will become poor though with strong N/NW tending W'ly breezes due.

Next week onwards (Jul 20 onwards)

As touched on last update, we've got some larger but onshore swell due into next week as a strengthening node of the Long Wave Trough pushes across us early in the week.

This will direct some relatively weak but broad frontal activity up and into us this weekend and across us early next week, building Monday and peaking Tuesday.

Size wise, we're probably looking at surf in the 8ft+ range across Margs, and 2ft+ in Perth but with onshore W'ly winds. More on this Friday though.