Black Rocks Jetty Surf Forecast and Surf Report

Alright folks, Rusty here. Let's have a proper look at what Black Rocks Jetty is serving up.

The coming days are looking like a classic reef set-up with plenty of punch for experienced surfers, but the wind is the real kingmaker here. We’ve got a run of solid, long-period groundswells coming in, and when the air’s glassy, this spot lights up.

Starting off, we’ve got Sunday morning. The water’s sitting at 77°, which is a touch warmer than normal for this time of year – feels nice. A solid 8ft swell out of the SSW with a 14-second period. That’s proper groundswell, and with a glassy morning, it’s going to be clean. The combined energy is strong at 2313, so there’s plenty of push. This is an expert's wave, but if you’ve got the skills, Sunday morning is a cracker.

Sunday afternoon stays clean with glassy conditions, swell dropping a touch to 7ft from the SSW, still holding good energy at 1895. The quality is still there for experienced surfers.

Monday stays in the same vein. Morning brings clear skies with a light offshore NNE breeze at 6 mph, keeping the surf clean. The swell hangs around 7ft from the SSW, period stretching to 15 seconds – that’s proper long-period groundswell, which is a dream on a reef like this. The energy is strong at 2330. Monday afternoon looks similar, just a hair of cross-off wind but still clean.

Tuesday morning sees the swell easing a bit to 5ft, but the wind swings to a perfect glassy WNW. The energy is moderate at 914, but these are very clean, well-shaped waves. A great day if you want a slightly less powerful session.

Wednesday is where it gets interesting. The morning is glassy again, 5ft swell from the SW, moderate energy. But Wednesday afternoon? The swell drops to 3ft, but the period jumps to a very long 18 seconds. That kind of period puts a lot of energy into the water, giving you these long, peeling lines with big gaps between sets. It’s glassy too, so it’s going to look unreal. The combined energy is still moderate at 1100, which is solid for that size.

Now, Thursday and Friday turn a bit wild. Thursday morning we’ve got onshore SSW wind at 6 mph and a 8ft SSW swell with a 17-second period – very strong energy at 4155. It’ll be a bumpy, tricky beast. Conditions get worse through the afternoon. Friday is just big and cross/onshore, with 13ft swell and wind up to 16 mph. The energy is massive – 7724 – but it's going to be messy. Kite surfers might be having a field day, but for paddle surfing, this is for the hardcore only, and even then it’s a slog.

Saturday, though, is the standout of the entire run. After the wind drops, we get glassy conditions with a 12ft SSW swell, 16-second period, and exceptional energy at 5022. That is some serious reef grunt with a glassy surface. This is an experts-only wave, but if you can paddle into it, that’s going to be the best session of the fortnight by a long shot. Saturday afternoon is still excellent at 10ft and glassy.

Sunday the 30th is another beauty, with glassy conditions and a 7ft swell, easing through the afternoon.

From Monday the 31st onwards, it’s a slow fade. The swell drops below 5ft and becomes inconsistent. There’s a long run from the beginning of September right through to the 7th where it’s mostly knee-to-waist high with very little energy. The conditions get glassy a few times, and you might catch a clean little one, but there’s no real power behind it. It’s a quiet period. The 2nd of September afternoon has a tiny 4ft SE swell with a short 7-second period – that’s weak and messy.

Then on the 7th of September, Monday, things perk up a tiny bit. A 2ft S swell with a 15-second period, clean cross-off wind, and glassy conditions by the afternoon. It’s small, but that long period will give it a surprising amount of shape and push.

All in all, the peak is this Saturday – mark your calendar for that one. The rest of the first week has plenty of good-to-excellent windows for the experienced crew. Don’t hold your breath for the first week of September, but sometimes these forecasts change.

Rusty.

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