Black Rocks Jetty Surf Forecast and Surf Report

Alright, let’s break it down. This is Rusty, and I’m looking at the same setup for the Black Rocks Jetty, but in feet and miles per hour, because that’s how some of you roll.

The water’s about 77°F on the 23rd, which is a touch warmer than usual for this time of year, so you’ll be fine in a shorty or just boardies.

We kick off on Sunday, the 23rd of August. Black Rocks Jetty is the only spot. It’s a reef break that’s very consistent, and it loves a south-west swell. The best of the early action is Sunday morning. We’ve got a solid 7.9ft swell from the SSW, with a 14-second period, so that’s a proper groundswell. The wind is glassy, dead calm from the WNW at 3 mph, which is about as good as it gets. The combined energy is pumping at 2313, so there’s plenty of push. This is for experienced surfers only, as it’s over 5ft. Sunday afternoon is just as good, with 7.2ft and glassy conditions, but the wind is completely calm. This is the standout of the first week.

Monday the 24th keeps the run going. Morning session has a clean 7.2ft swell from the SSW, with a 15-second period, and a light offshore breeze from the NNE at 6 mph. That’s clean, lined-up waves. Energy is massive at 2368. The afternoon is glassy again with a 7.5ft swell. This is top-tier stuff.

Tuesday the 25th drops a little. The morning is 5.2ft, but the wind is cross-shore, which will mess up the face. Not the best. The afternoon is better, with a cross-offshore wind, so it’s cleaner, but still only 5.2ft. Energy has dropped to 797.

Wednesday the 26th is a mixed bag. The morning is glassy with 5.2ft, but the real standout is the afternoon. The swell drops to 3.0ft, but the period jumps to 18 seconds. That’s a very long period groundswell, and it’s glassy. For a reef setup like this, those long-period waves will wrap in beautifully, even if they’re smaller. Energy is still 1103, which is moderate, but the quality will be high.

Thursday the 27th is a washout. The swell jumps to 9.8ft, which is too big for most, and the wind is onshore and strong. The morning is already messy with onshore wind, and the afternoon is a full-on choppy mess with 12 mph winds. The energy is enormous at 4596, but it’s unsurfable. This is more of a kite-surfing setup.

Friday the 28th is a ripper. The swell is 11.5ft to 13.1ft from the SSW, with a 16-second period. The wind is cross-shore, which isn’t perfect, but for a reef break, it’s manageable. The energy is off the charts at 6757 to 7253. This is big, powerful, and only for experts. The afternoon session is the best of the day, with a gentler cross-shore, but still, it’s big.

Saturday the 29th is still big, with 9.8ft, but the wind is cross-shore again. It’s messy, but if you’re a charger, you’ll find a wave. The energy is still strong at 4636.

Sunday the 30th sees a drop back to a much more manageable 7.2ft, and it’s glassy. The morning is dead calm, and the afternoon is a light breeze. This is a return to clean, quality surf. The energy is 1910.

Monday the 31st is the last of the good stuff. The morning is glassy with 4.3ft, but the energy is dropping to 497. The afternoon goes onshore, so make the most of the morning.

From Tuesday the 1st of September, it goes quiet. The swell drops to under 3ft, and the wind is onshore or cross. There’s a gap of about four days of very poor surf, until Thursday the 3rd of September, where we see a tiny pulse of 2.6ft to 3.0ft from the SW, with a long period of 14 seconds. The wind is glassy on the afternoon of the 3rd, so it’s surfable

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