Big Rock Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a good hard look at what’s coming down the line for Big Rock over the next couple of weeks. Gotta be straight with you – we’re in for a bit of a slow start and a whole lot of waiting for the right window.

The opening days are a write-off. Tuesday and Wednesday of this week are just not worth paddling out for. We’ve got weak little 2ft to 3ft swells from the southwest, but the wind is cross-onshore or straight onshore, and the reports are screaming "poor surf conditions". Don’t waste your time. Thursday is more of the same, even with a long 18-second period on the afternoon. That groundswell energy is there, but it’s being hammered by a moderate onshore breeze, so the surface will be messy. The wave energy is moderate, but it doesn’t matter when the wind’s ruining it.

We get a little glimmer of hope into Friday. Swell bumps up to 4-4ft, still from the southwest, and the combined energy jumps to a strong level on Friday afternoon. But the commentary says "marginal surf forecast" at best. You might find a few rideable ones, but you’ll be working for them.

Now, here’s the standout, and it’s a bit of a tricky one. Saturday, September 6th into Sunday, September 7th is the real deal, but it’s for experts only. The swell builds fast. Saturday afternoon sees 4ft from the south, building to 6ft Sunday morning, and then absolutely pumping to 8ft by Monday morning. The period sits at a solid 14 seconds, so it’s got some proper groundswell punch. The combined energy readings are massive. Big Rock is a reef break, so that long-period south/southwest swell will wrap in nicely, but at that size, it’s a heavy, powerful wave. The wind on Sunday morning is light cross-onshore from the NNW, which should keep it reasonably clean, but this is not a beginner’s playground. Over 8ft on a reef? That’s expert territory, plain and simple. The forecast actually says "wind and tide favorable, but the swell is predicted to be too big for this break" – which for the right crew means it’s game on, but respect the ocean.

After that pulse, it drops fast. Monday afternoon turns into a choppy cross-offshore mess with 15 mph winds, and by Tuesday (September 8th), we’re back to marginal 5ft to 6ft waves with a shorter 10-11 second period. The energy drops to moderate. Then from Wednesday the 9th onwards? It’s a long flat spell. We’re looking at tiny 2ft to 3ft waves for the rest of the forecast, with poor conditions and onshore or cross-onshore winds. There’s a small window on Sunday the 13th where the morning shows a "marginal" tag with a 2ft swell, but honestly, it’s not worth getting wet for. A 10-day gap of barely anything.

One thing to note – the water temperature right now is 75°F. That’s a full 7°F warmer than normal for this time of year, which is very unusual. You’ll be surfing in board shorts for sure, even if the waves aren’t cooperating.

So, to sum it up: your best bet, and really the only serious window, is Saturday, September 6th and Sunday, September 7th. That south swell pumping up to 8ft with 14-second period is the standout. If you’re an experienced surfer who can handle a powerful reef break, that’s your time. Everyone else, wait for the next cycle.

Stay salty,
Rusty

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