Black Rocks Jetty Surf Forecast and Surf Report

Alright folks, Rusty here with a look at what’s shaping up for Black Rocks Jetty. We’ve got a solid run of surf coming, but it’s not all smooth sailing, so let’s get into it.

This stretch kicks off proper on Monday the 24th of August with some serious energy in the water. The combined swell energy here is pumping at 2368 (moderate to strong). We’re looking at a clean 7ft SSW groundswell with a very long 15-second period, and a light NNE breeze keeping things tidy. This is premium territory for experienced surfers – that long period is going to wrap beautifully around this reef break. Monday afternoon somehow gets even better, with the wind dropping to glassy calm and the swell nudging up to 8ft. If you can get out there, this is the best of the best for the whole run.

Tuesday the 25th keeps the quality high. Morning has a 6ft SSW swell with a 13-second period and clean conditions under a light cross-offshore breeze. It eases a little in the afternoon to 5ft but still very much worth a paddle.

Now, Wednesday the 26th is a mixed bag. The morning session is a bit average with cross-shore wind and 5ft swell – the energy is there (938) but it’s not clean. However, don’t sleep on Wednesday afternoon: the wind goes glassy again, and even though the swell drops to 3ft, the period stretches out to a massive 18 seconds. That’s a very long-period groundswell, and on this reef, it’ll set up some real gems. The energy is still solid at 1144 (moderate).

Thursday the 27th is for experts only. Swell jumps to 10ft with a 17-second period, but the wind turns cross-onshore. The combined energy is insane at 4641 to 4910 (strong to very strong). The surf will be big and powerful, but the wind will make it ugly. This is more a spectacle than a session.

Friday the 28th gets even bigger – 13ft SSW swell at 16 seconds, with energy readings over 7200 (very strong). Again, the wind is cross-shore, so you’re looking at big, lumpy waves. Unless you’re a seasoned charger on a step-up, give it a miss.

The weekend cleans up nicely. Saturday the 29th morning brings a 10ft SSW swell at 15 seconds, but the wind turns cross-offshore, making it clean again for experienced surfers. Sunday the 30th is a beauty – 7ft to 7ft SSW swell, with glassy or near-calm winds. By now the energy has eased back to 1910, but the conditions will be pure joy.

Through the middle of the following week (31st August to 4th September) the swell fades away. There are some fun, smaller days with clean conditions – 3ft to 4ft – but nothing to get too excited about. A few mornings with glassy conditions but the waves are small and weak, dropping down to combined energy under 200 (weak) by Tuesday.

We hit a flat spell from around the 2nd of September, with waves barely reaching 2ft. That lasts for a few days. It’s not an uncommon lull for this area, but keep an eye on the longer-range outlook.

One to watch: By the 7th of September, we see a new pulse of 4ft to 5ft SW swell arriving with a 14-second period and clean, glassy conditions. It’s 16 days out, so not a guarantee, but it’s got promise. Keep the board ready.

Rusty.

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