Western Australia Surf Forecast by Craig Brokensha (issued Monday July 3rd)

Best Days: Perth this afternoon, Perth and Mandurah Thursday morning, Perth and Mandurah Saturday morning

Features of the Forecast (tl;dr)

• XXL SW swell for tomorrow, peaking into the afternoon, easing slowly Wed
• Strong W/SW winds tomorrow, SW Wednesday
• Smaller Thu but still large in the South West with strengthening W/SW winds, lighter and E/NE to the north in the AM
• Building mid-period SW swell Fri with strengthening W/SW winds
• Peak in SW swell Sat with SW winds in the South West, variable to the north
• Mod-large SW groundswell Sun with increasing N/NW winds

Recap

An early window of clean, small 2ft waves Saturday in the South West, tiny elsewhere, poor yesterday with choppy conditions.

Today we've got a mix of building NW windswell and large W/SW groundswell with workable conditions for the keen and experienced across Perth this afternoon.

Chunky north sets this afternoon

This week and weekend (Jul 4 - 9)

Currently, a severe low is sitting south-west of us, generating a slow moving fetch of gale to severe-gale SW winds through our south-western swell window.

The fetch will slowly move up and into us tomorrow, generating an XXL swell event for tomorrow that now looks to come in at a huge 20ft through the afternoon in the South West 4-6ft across Perth and 4-5ft in Mandurah.

Conditions will be a mess with strong W/SW winds due across all locations tomorrow, SW on Wednesday thanks to the slow moving nature of the low.

It looks like the swell will still be very large and easing from 15ft+ on Wednesday morning, 4-5ft in the South West and 4ft across Perth, smaller Thursday ahead of the next episode of large windy swell building Friday.

Winds will remain onshore Thursday and be moderate to fresh from the W/SW, strengthening through the day, with Perth and Mandurah offering morning E/NE winds.

The swell should still be 3ft in Mandurah and 2-3ft across Perth, well worth a surf.

Looking at Friday and an initial strengthening mid-latitude front should bring some building mid-period SW swell that looks to peak Saturday ahead of some stronger groundswell on Sunday.

Conditions will be poor across all locations Friday with strengthening W/SW breezes, weaker Saturday but likely lingering onshore across the South West, cleaner to the north.

The swell will be on the smaller side to the north on Saturday but fun with 2-3ft sets across Mandurah and small 2ft waves in Perth.

More approaching frontal activity looks to tip winds to the NW on Sunday with larger groundswell pulses due through next week. More on this Wednesday.