Average period of surf ahead

Craig Brokensha picture
Craig Brokensha (Craig)

Western Australian Surf Forecast by Craig Brokensha (issued Monday October 16th)

Best Days: Friday morning in the South West

Features of the Forecast (tl;dr)

  • Fading surf tomorrow with moderate S/SW tending stronger SW winds in the South West, E/SE to the north early
  • Small glancing SW pulse for Wed AM with moderate S/SE tending S/SW winds
  • Moderate sized mid-period SW swell building Thu, peaking into the PM with fresh S/SE tending S/SW winds
  • Easing surf Fri with E/SE tending SW winds
  • Small Sat with E/NE tending NW winds


Windy conditions with building surf was seen through Saturday, biggest into the afternoon and evening but choppy and not ideal.

Yesterday was the pick with cleaner conditions and a good sized, easing swell from 6ft+ in the South West, 2ft Mandurah and 1-2ft across Perth. This morning is clean again but smaller and best on the South West magnets.

Solid and windy yesterday AM

This week and weekend (Oct 17 - 22)

Following the weekend's fun pulse of SW groundswell, we've got a fairly average week of surf ahead. This will be thanks to the Southern Ocean falling quiet as troughs bring funky winds.

Tomorrow will be a lay day as the swell bottoms out and a trough brings a shallow S/SW change to the South West, strengthening from the SW into the afternoon. Perth and Mandurah should be clean early but with no swell.

Wednesday will remain on the small side (besides a glancing pulse of SW groundswell) and winds should shift back to the S/SE. Come Thursday a small pulse of mid-period SW swell is due to fill in, peaking through the afternoon.

The source is a small low that's currently forming on the tail of a strengthening polar low, south-southwest of us. A small fetch of strong W/SW winds should boost wave heights to 4-5ft+ in the South West through the day, with 1-2ft sets in Mandurah after lunch, tiny and to 1-1.5ft across Perth.

Winds will remain out of the S/SE on Thursday morning and freshen, with Friday looking the pick of the week with a morning E/SE offshore and easing sets from 4ft in the South West, tiny to the north.

The weekend will start clean but small, while a slow moving mid-latitude low looks to form west of us, strengthening while moving east into Sunday and Monday. This will bring an increase in W/SW swell but with onshore winds, cleaning up while easing into Tuesday/Wednesday next week. We'll have a closer look at this on Wednesday.


Jamyardy's picture
Jamyardy's picture
Jamyardy Tuesday, 17 Oct 2023 at 10:50pm

Good timing for Nicolas Cage to shoot a surf movie around Margs/Yals