Good swell for tomorrow but with onshores, better Wednesday

Craig Brokensha picture
Craig Brokensha (Craig)

South Australian Forecast by Craig Brokensha (issued Monday 7th November)

Best Days: South Coast Wednesday morning, locations that handle easterly winds Thursday and Friday mornings


Large building stormy waves on the South Coast Saturday with poor 1-2ft waves on the Mid, while Sunday was much better with light local offshore winds and solid easing 3-5ft sets down South, 1-1.5ft on the Mid with some slight bump.

Today the surf was smaller again down South small small clean leftovers ahead of weak change, while the Mid saw 1-2ft sets hanging in on the coast.

A very long-range and inconsistent W/SW groundswell discussed on Friday, is impacting Cape du Couedic with peak periods over 18s showing from early this morning, but no major size is due from this until this afternoon. The buoy is also only now showing a slight kick in size.

This week (Nov 8 - 11)

Our good pulse of SW groundswell due tomorrow across the state is still on track, with the vigorous mid-latitude frontal system generating it currently sitting south of us.

A good fetch of W/SW gales has been generated, with the low strengthening this morning but just east of our swell window.

In any case a strong SW groundswell is due tomorrow, peaking tomorrow morning to a solid 3-4ft+ across Middleton with larger sets at Waits and Parsons and 1-2ft sets on the Mid.

Our models are over-forecasting the size, and we'll see Wednesday easing from 3ft+ at Middleton and 1ft or so on the Mid.

Unfortunately winds tomorrow look average for the South Coast with a lingering SW'ly in the wake of today's change, while Wednesday should be better but not perfect with a variable breeze through the morning.

Into the end of the week the swell will continue to ease, dropping from 2ft+ at Middleton Thursday morning, and then 1-2ft Friday. Conditions will be best at spots that handle easterly breezes, with a light morning E/NE wind Thursday morning and fresher into Friday. This will be related to a slow moving and deepening mid-latitude low moving in from the west.

This weekend onwards (Nov 12 onwards)

The deepening low moving in from the west will move across us Friday evening and off to the east Saturday resulting in W/SW winds on Saturday and a weak S'ly windswell, and a building SW windswell Sunday as fresh W/SW winds persist.

We'll have a closer look at this Wednesday though.