Western Australia Surf Forecast by Craig Brokensha (issued Friday April 15th)

Best Days: Protected spots tomorrow morning and Sunday, Monday morning, Tuesday morning, Wednesday, Thursday

Features of the Forecast (tl;dr)

• Moderate sized + SW groundswell for Sat with early S/SE-SW tending fresh SW then stronger S/SW winds
• Mix of swells building Sun, peaking into the afternoon with gusty S/SE winds, strengthening later
• Easing surf Mon with E/SE tending SW winds
• Mid-period, moderate sized + SW swell building Tue, peaking Wed with light E tending SW winds Tue, fresh E winds, easing Wed
• Moderate sized + S/SW groundswell Thu AM with strong E tending lighter E/NE-NE winds

Recap

Clean but tiny waves in Perth and Mandurah yesterday morning, a slow 3ft in Margs but a bit better just before the sea breeze moved in.

Today some new mid-period SW swell is on the build with clean conditions and 4ft sets this morning, now 5ft and still offshore. Perth and Mandurah are on the tiny side of the coin and 1-1.5ft.

Good swell pulse today

This weekend and next week (Apr 16 - 22)

Today's pulse of mid-period SW swell is the first of three, with tomorrow's being a stronger SW groundswell.

This swell and a third for Sunday, mixed in with mid-period energy have and are still being generated by a progression of healthy polar fronts through our swell window. The strongest of the fronts is linked to tomorrow's swell and should provide better sets to 6ft in the South West, 1-2ft in Perth and Mandurah.

A trough will bring less than ideal winds, with early E/SE-SE breezes in the South West, shifting W/SW during the morning, stronger S/SW into the afternoon. Perth and Mandurah will see moderate S/SE tending S/SW winds.

Winds will hold out of the S/SE on Sunday, fresh to strong in the South West along with our third pulse of SW groundswell.

This third pulse looks to keep wave heights around a similar size to Saturday across all locations, but some additional mid-period S/SW swell might provide the odd bigger set in the South Wes through the afternoon.

Monday still looks the cleanest with a light E/SE offshore wind and mix of easing swells from 6ft in the South West, 2ft on the sets in Perth and Mandurah.

We then look at the developments into next week and the strong polar frontal progression that was on the charts for most of the week and now looks more subdued and forming further east/late in our swell window.

This means we won't be seeing any major size unfortunately but conditions will be clean.

Firstly a pre-frontal fetch of strong to gale-force W/NW winds should generate some good, moderate sized, mid-period SW swell for Tuesday afternoon but more so Wednesday, reaching 6ft across the South West (possible rare bigger one), 2ft on the sets in Mandurah and Perth.

Light E winds are due on Tuesday morning with some slow building swell, great Wednesday with a fresher E/SE breeze, variable into the afternoon. Behind the W/NW fetch will be a strong to gale-force S/SW fetch, producing a reinforcing S/SW groundswell for Thursday morning. It looks to be in that 6ft range again in the South West, but smaller and to 1-2ft in Perth and Mandurah. Stronger E winds are due on Thursday, shifting lighter E/NE-NE into the afternoon.

Longer term there's nothing too major on the cards but more on this Monday. Have a great weekend!