Big Rock Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a proper look at what Big Rock’s got cookin’ for us. The water’s sitting about average for this time of year.

Right off the bat, we’ve got a solid pulse of SW groundswell pushing in. This is a reef setup, exposed to the swell, so it’s gonna pick up a lot of that energy. The combined energy is strong, around the 3750 mark. Wednesday morning sees a 10ft swell out of the WSW with a long 15-second period, but it’s a bit tricky with a cross-off breeze and some questionable tide. Not the cleanest start. But Wednesday afternoon cleans up nicely – the wind drops, and you’ve got 8ft of that same long-period swell. It’s still a big wave, this is intermediate territory, and the energy’s still right up there (3183). Definitely the pick of the first few days for anyone who knows what they’re doing.

Thursday drops off a touch to 6ft, and while the morning has clean conditions, the wind’s up at 25 km/h, making it a bit of a battle. Thursday afternoon swings onshore, so it’s not great. Friday holds around 7ft to 8ft, but the wind is up again, making it lumpy. Saturday and Sunday are write-offs with strong onshore winds and wild conditions – don’t bother.

Now, here’s where it gets interesting. Monday the 14th and Tuesday the 15th. Monday morning is the standout of the first week. You’ve got a big 12ft SW groundswell (46,00+ energy!), and the wind is a whisper-light NNE cross-off. That’s going to be clean, powerful, and glassy. It’s going to be big and take some commitment, but the reward will be there. Tuesday the 15th holds similar size at 10ft, but the wind gets strong again.

We then hit a bit of a lull. Wednesday the 16th is still okay with a clean 8ft morning, but after that, from Thursday the 17th right through to the end of the weekend (the 20th), it’s a complete mess. Strong winds, rain, and lumpy, onshore junk. There’s a solid 4-5 day gap here with nothing worth paddling out for.

Then things get wild again. Look at the 21st of September. We’re talking 18ft to 20ft of SW groundswell. That’s huge. The combined energy readings are off the charts (16,706 and 21,936). The problem is, it’s too big even for this exposed reef. The report says it’s too large for the break. Only absolute experts would even consider it, and even then, it’s sketchy. The wind is moderate cross-shore, which is okay, but the raw power is just immense. This is more of a spectacle than a surf session for most.

Into the final days, the 23rd of September looks like a great reset. The swell drops back to a very manageable 10ft from the SW. The morning session is an absolute dream – glassy conditions with a light offshore breeze. The waves will be clean, powerful, and lined up. That’s the one to circle. Then Thursday the 24th offers a smaller, clean 7ft morning with a lovely offshore breeze. A perfect finisher for the brave.

All up, the main standouts are Monday the 14th morning for the big, clean groundswell, and then Wednesday the 23rd morning for the glassy, quality conditions. Be patient through the middle of the run.

- Rusty

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