Western Australia Surf Forecast by Craig Brokensha (issued Monday 9th January)

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Best Days: Tuesday morning, Wednesday morning, Friday, Saturday morning

Recap

Plenty of swell but bumpy conditions across the South West Saturday, cleaner Sunday morning but smaller and back to 3-4ft. Perth offered clean peaky 2ft sets Saturday morning, but Sunday was tiny.

This morning a new SW swell has filled in across the South West, coming in at 4ft this morning, and a peak is due this afternoon to 4-5ft. The swell is only tiny north and won't reach any major size.

This week and weekend (Jan 10 - 15)

Tomorrow's slightly stronger SW groundswell due across the state is still on track, generated by a relatively weak but persistent mid-latitude front moving through the southern Indian Ocean over the weekend.

The swell should peak tomorrow morning to 4-6ft in the South West and 1-1.5ft around Perth before easing into the afternoon, smaller Wednesday.

A S/SE-SE breeze is due across Margs (E/SE to the north) ahead of sea breezes and then SE-E/SE winds Wednesday.

Now, into the end of the week, all eyes are on the intense mid-latitude low and swell that's due Friday.

This low is expected to form a touch later than forecast Friday resulting in a touch less size, but we'll see a fetch of severe-gale to storm-force W/SW winds projected ideally towards us in a 'captured fetch' like motion.

This will generate a large, powerful long-period and consistent W/SW groundswell for Friday morning, but ahead of this some mid-period SW swell will build Thursday from the low brushing the south of the state but with SW winds.

Size wise, the South West should come in around 10ft on Friday morning with 3ft sets around Perth under an offshore SE breeze (possibly E/SE) and E/SE to the north.

The swell will ease steadily through the day, further into Saturday and Sunday morning with E/NE winds on the forming and onshores Sunday.

Longer term another low is forecast to fire up through our swell window over the weekend, but not with the same intensity. This should generate a good W/SW swell for early next week but with S'ly winds. More on this Wednesday.