Western Australian Forecast by Craig Brokensha (issued Wednesday August 6th)

Best Days: Today, tomorrow selected spots

Features of the Forecast (tl;dr)

• Easing SW groundswell tomorrow with light-mod E/NE tending stronger N/NE winds
• Smaller Fri with strong N-N/NE tending N/NW winds
• Large building W/SW groundswell Sat with strong N/NW tending NW winds
• Mix of large swells Sun with strong W/SW-SW winds
• Easing swell Mon with NW winds in the South West, E/NE-NE in the AM to the north
• Moderate sized SW swell Tue with N/NW-NW winds in the South West, E/NE-NE in the AM to the north

Recap

Monday’s chunky mix of swells eased into yesterday with lumpy conditions across most breaks, best around Perth and improving slowly into the afternoon across the South West.

Today is the pick of the week though with a large new SW groundswell with offshore winds and great to excellent surf across the state. Margs is an easy 10ft with 3-4ft waves in Mandurah and 3ft surf across Perth.

Winds are due to only go light sea breezy through the day, creating a full day of good surf.

Great surf today

This week and weekend (Aug 5 - 10)

This morning’s peak in SW groundswell is expected to ease into this afternoon and further tomorrow as early light E/NE winds shift N/NE and strengthen through the day. With this, northerly friendly breaks are the go with the swell easing back from 6-8ft in the South West, 2-3ft Mandurah and 2ft+ Perth.

Make the most of this window of easing surf before winds strengthen from the N/NE-N tending N/NW on Friday with small, fading surf.

Unfortunately the weekend still looks to be a write-off thanks to an approaching frontal system bringing strong N/NW tending NW winds Satruday along with some large, building swell, strong W/SW-SW on Sunday as the swell eases.

The source is a strong polar low firing up across the Heard Island region today, with a fetch of gale to near sever-gale W/SW winds expected to generate a large groundswell Saturday afternoon. It’s all academic though as there’ll be nowhere to surf with the wind.

Come Monday we’re expected to see easing surf with a window of E/NE-NE winds across Perth/Mandurah but still lingering onshore in the South West. Perth looks to be 2ft+ with 2-3ft peaks across Mandurah.

Later in the day but more so Tuesday, a new pulse of mid-period W/SW swell is due, generated by a small fetch of W/NW winds at the head of a weak stream of strengthening frontal activity moving in from the south-west. This will bring persistent N-NW winds across the South West and morning E/NE-NE winds to the north with small options for the keen across the metro locations.

No major size is due in the South West and by the time winds improve later week, no size or energy is due. Therefore make the most of today and tomorrow!