South Australian Forecast by Craig Brokensha (issued Wednesday 4th September)

Best Days: Mid Coast early tomorrow, South Coast through the morning, South Coast keen surfers Saturday morning and Sunday morning, South Coast Tuesday and Wednesday morning

Recap

Tiny 1-1.5ft waves on the Mid Coast yesterday morning, but a new W/SW groundswell showed into the afternoon, offering 1-2ft sets as winds backed off from the north. The swell has continued at the expected 1-2ft on the sets today with light morning winds, fun and 2ft+ off Middleton.

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This week and weekend (Sep 5 - 8)

We've got an additional and better pulse of W/SW swell on the cards for this afternoon, generated by a weak front moving under WA yesterday.

The Mid Coast should see more consistent 2ft waves, with Middleton holding around 2ft+. Get in early on the Mid as a dawn N/NE breeze will quickly freshen and then strengthen from the NW tending W/NW as a mid-latitude low moves in from the west.

The South Coast will also be best in the morning before those winds strengthen and shift.

The mid-latitude low will be slow moving, with a fetch of W/SW-SW gales forecast to be generated in our western, and then briefly in our south-western swell window.

A stormy increase in W/SW swell is due on the Mid Coast Friday, reaching 3-4ft with strong W/SW tending SW winds. The South Coast will see the swell building into the afternoon, likely to a similar size by dark, but choppy and messy.

Winds will remain onshore out of the W/SW on the Mid Coast Saturday as the swell eases back from 2-3ft, while Victor should see a morning W/NW breeze with easing low period S/SW swell from 3ft+.

Into Sunday and early next week we'll see a series of strengthening fronts pushing up and towards Victoria, generating pulses of S/SW swell for the South Coast, with a small W/SW swell for the Mid Coast Sunday from the first of theses fronts.

Size wise the Mid looks to hang in at an onshore 2ft Sunday, fading Monday, with W/NW tending W/SW winds on the former and variable tending NW winds on the later.

The South Coast may increase in size later Sunday, but the morning will be clean and back to 2ft off Middleton, with Monday seeing 2-3ft waves, building to 3-4ft later with variable tending S/SW winds.

Tuesday looks the pick with the S/SW swell easing from the 3ft range off Middleton under N/NE offshores. There'll also be a very inconsistent long-range W/SW groundswell in the mix Tuesday, though likely not above the size of the local S/SW swell.

Longer term no significant swells are on the cards as of yet until next weekend, but more on this Friday.