Big Rock Surf Forecast and Surf Report

Alright, Rusty here, and I’ve got the scoop on what’s coming. Let’s get into it.

We’re looking at a slow start, but the good stuff is on the way. The real action doesn’t show up until Friday the 4th of September, and even then, it’s a bit of a tease. The water’s sitting at a much warmer than normal 73°, which is about 5° above the usual for this time of year – that’s a standout, you’ll feel it for sure.

Big Rock is the only spot that’s firing, and it’s a solid reef break for the advanced crew. For the first few days, we’re looking at a clean 4ft to 4ft swell from the SW, with a very long period of 16 seconds. That’s proper groundswell, and it’s got a bit of energy in the water (837 to 1082). The wind is mostly cross-on or on from the WNW, so it’s not perfect, but it’s rideable. The combined energy is moderate, but the long period means the sets will have some punch. The best bet for a wave is going to be Friday afternoon, with that 4ft SW swell and a gentle onshore breeze – it’s not glassy, but it’s the cleanest of these early days.

The weekend picks up a touch. Saturday morning is still that 4ft SW, but the wind is light cross-on, so there’s a bit of texture. By Saturday afternoon, we’re up to 4ft from the S, period dropping to 13 seconds, but the wind gets a bit more messy. Sunday morning sees the swell jump to 6ft from the SSW, with a moderate cross-shore wind. That’s a bit more size, but it’s choppy and the wind is not helping. The energy is strong (1223), but the quality is marginal. This is a time for the experienced only – 6ft is pushing it for most.

The real standout of the whole 16-day window? I’d say Monday the 7th of September. The swell is 6ft from the SSW, period of 13 seconds, and the combined energy is hitting 1314 – that’s our peak. It’s a cross-on breeze, but it’s the biggest, most powerful swell we’re going to see. For the advanced surfer, that’s the one to circle. The waves will have a lot of energy, and the reef will handle that long-period swell better than a beach break would. Just be aware that it’s a bit of a haul, and the crowds are "often" here, so don’t expect it to be empty.

After Monday, the size drops off quickly. Tuesday the 8th is still 5ft but with a shorter period and weaker energy, and by Wednesday it’s back to 4ft. The rest of the first week (through to the 10th) is a slow fade, with the swell dropping to 3ft and the wind staying cross-on. The energy is moderate at best, and the quality is poor. There’s a bit of a gap of good surf from the 10th to the 17th – that’s a full week of mostly small, weak, or messy conditions. The swell bottoms out at 1ft to 2ft, with a lot of onshore winds and poor surf reports. It’s not worth paddling out for.

Now, looking into the second week, there’s a glimmer of hope. By Friday the 18th of September, we start to see a pulse of energy again. The swell is still small (2ft), but the period jumps back up to 20 seconds, and the energy is moderate (533). The wind is light cross-on, which is promising. By Saturday the 19th, we’ve got 3ft from the SW, period of 18 seconds, and light winds. It’s still marginal, but it’s a better shape than the dead zone we just went through. This is a promising but less certain call – keep an eye on it.

Overall, the best day to get wet is Monday the 7th of September at Big Rock. That’s your standout. The rest of the window is a mix of small, messy, or waiting for the next pulse. It’s not a bad run, but you’ve got to be patient.

Rusty.

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