Black Rocks Jetty Surf Forecast and Surf Report

Alright, Rusty here. Let’s break it down for the crew that thinks in feet.

We’ve got one spot on the menu for the next couple of weeks, and it’s a wild ride.

The main event is Black Rocks Jetty. This reef is wide open to the southwest, and it’s about to get hammered. The water is warm, sitting at 77°, which is a solid 4° warmer than what’s normal for this time of year.

We start on Tuesday, August 25th. The afternoon is average with a cross-on breeze and a 5ft SSW swell. The energy is moderate (797), but it’s not the day.

Wednesday the 26th is where it gets real. The morning has a clean 5ft SW swell and a cross-off breeze. It’s good, but the real standout is Wednesday afternoon. The wind goes light and cross-off, dropping the swell to 3ft, but the period jumps to a very long 18 seconds. The energy is strong (1185), and it’s clean. That’s a proper groundswell for a reef. This is the pick of the first week.

Now, Thursday the 27th gets big. The morning sees a 10ft SSW groundswell with a 17-second period and a perfect offshore wind. The energy is massive (4641), and at over 9ft, this is for experts only. The afternoon turns nasty with a strong cross-on and 12 mph winds from the SSW, making it a total mess. The swell gets even bigger into Friday the 28th, hitting 13ft, but with a fresh cross-onshore wind and lumpy conditions, it’s a write-off. The energy is huge (9324), but the wind is a killer. This is more for the kite crew.

The weekend offers a break. Saturday the 29th delivers glassy conditions with a still-juicy 12ft SSW swell in the morning, dropping to 10ft in the afternoon. Glassy conditions and strong energy (4900) mean it’s heavy but clean. For experts only. Sunday the 30th is glassy all day with a 7ft to 7ft SSW swell, offering a little more accessibility for strong intermediates.

After that, the swell fades. Monday the 31st is clean and small, and by Tuesday, September 1st, we’re down to knee-high dribble. The energy drops below 200, and it’s a flat spell with a few glassy but tiny waves through to Friday, September 4th.

But hold on. The second week has a huge promise. Friday, September 4th afternoon looks excellent. The swell is 5ft from the SW with a very long 18-second period, glassy conditions, and a strong energy of 1447. The wind is light and offshore. This is a serious standout for the second week.

Then it gets even better. Saturday, September 5th is clean all day with a 6ft to 6ft SW groundswell and a solid 15-second period. The energy is strong (1526), and the wind is cross-off. This is the best of the second week, but being more than a week out, mark it as promising but not locked in.

The run continues with a solid 5ft SSW swell on Sunday the 6th, but the wind goes onshore and then turns into a strong 25 mph cross-on with rain showers by the afternoon. That’s a mess.

The real fireworks are predicted for Monday the 7th through Tuesday the 8th of September. Monday afternoon sees a 10ft SSW swell from a 17-second period, with a gentle cross-shore breeze and a massive energy of 10970. Tuesday, September 8th morning is a monster: a 15ft SSW swell, 18-second period, and a light cross-shore breeze. The energy is a staggering 12611. Then Tuesday afternoon turns exceptional: the wind goes offshore, the swell is still 13ft, and the energy is 9976. That is a world-class, expert-only, heavy reef slab. If you’re a charger, that’s the one.

The outlook fades out Wednesday, September 9th, with a still-strong 8ft SSW swell, but the wind goes cross-on, making it marginal.

So, the standout sessions are Wednesday, August 26th afternoon for the clean, long-period groundswell, and Tuesday, September 8th afternoon for the sheer power and offshore perfection. Keep your eyes on that second week.

Rusty.

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