Black Rocks Surf Forecast and Surf Report

Righto, let’s have a look at what’s coming up for Black Rocks.

First thing you gotta know – this is a tricky little reef break for advanced crew only, and it’s inconsistent, so when it fires, you gotta be on it. The water temp is sitting at 58°, which is a bit colder than normal for this time of year, so maybe dig out the thicker wettie.

The run starts Monday afternoon, 31st August. We’ve got a clean 6ft SW swell pushing in with 11-second period. Combined energy is moderate at 685. Winds are cross-off from the SSW at 9 mph, so it’s gonna be clean and lined up. It won’t be huge, but it’s a solid start.

Now, Tuesday 1st September is the real standout. Morning brings glassy conditions with a 8ft SW swell, 13-second period, and combined energy strong at 2063. That’s a proper groundswell. Wind is glassy from the NW at just 3 mph – that’s about as good as it gets for a reef. It’s expert-only territory with waves over 8ft, so don’t even think about it if you’re not solid. Afternoon pushes to 10ft with a W offshore 9 mph, energy up to 2722, and clean faces. That’s the session to aim for. Crowds are often here, so expect company.

Wednesday 2nd September drops off a touch. Winds go cross-on from the SSE, 6-9 mph, and the swell drops slightly to 8-8ft. Still plenty of energy (2005-2412) and a 13-second period, but the onshore breeze will put a bit of chop on it. Still surfable for the experienced, but not as clean as Tuesday.

From Thursday 3rd September right through to Saturday 5th September, it’s pretty much a write-off. Strong winds, near gale to gale force, cross-onshore, and blown out. Swell gets messy with period dropping to 7-9 seconds. Not worth paddling out. Sunday 6th September is still ugly with strong onshore winds and short-period junk.

Monday 7th September sees a drop in wind, but the swell is down to 3-4ft with energy under 430. Marginal at best. Tuesday and Wednesday the 8th and 9th are tiny – 1-2ft with weak energy (120-177). Glassy but no power.

Thursday 10th September shows a slight increase: 5ft SW swell with 11-12 second period and energy around 587-679. But winds are cross-shore from the SSE at 9-16 mph, so it’s a bit choppy. Still, better than the flat spell.

From Friday 11th onward into mid-September, it’s a mix of onshore winds, short-period swell, and mostly poor conditions. A little glimmer on Sunday 13th afternoon with 3ft SSW swell, glassy wind from the SE at 3 mph, and energy just 266 – small but clean if you’re desperate.

The next real highlight comes Tuesday 15th September. Morning shows a clean 4ft SW swell, 14-second period, with cross-offshore WNW winds at 12 mph, and energy at 602. Afternoon pushes to 4ft, same period, with a gentle W offshore. Expect good, clean waves. It’s not huge, but it’ll be fun for the advanced crew.

Overall, the best is Tuesday 1st September – that 8-10ft SW groundswell with glassy to offshore winds is the one to circle. Keep an eye on Tuesday 15th as a promising, less certain option further out.

Rusty.

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