Black Rocks Jetty Surf Forecast and Surf Report

Alright, folks, Rusty here. Let's talk about the only game in town for the next couple of weeks: Black Rocks Jetty.

We've got a solid run of swell headed our way, starting right out of the gate. This isn't a week for the faint of heart, though. We're looking at a serious, long-period groundswell from the SSW that's gonna light up this exposed reef. The water temp is sitting about average for this time of year, so no surprises there.

The action kicks off on Tuesday, September 8th. The morning sees a solid 7ft SSW groundswell, but it's a bit on the messy side with a cross-shore breeze. The real energy builds into the afternoon as the swell jumps to 12ft, with a combined energy reading of 8583 – that's a lot of power. The wind is still cross, so it's a bit lumpy, but the size is undeniable.

Wednesday, September 9th is where it gets interesting. The morning still has that 12ft monster with a 17-second period, but it's cross-on. Then, the afternoon... holy moly. The wind drops to absolutely zero. Glassy conditions, 12ft of SSW groundswell. The combined energy is 6300. This is exceptional, but make no mistake, this is for experts only. That wave face is going to be a heaving wall. If you're not comfortable on a big, powerful reef, stay on the beach and watch.

The swell backs down a touch into Thursday, but the periods are still long. Thursday afternoon is a standout for the more experienced crew: 5ft of SW swell, glassy conditions, and a combined energy of 1483. That's a much more manageable size but still plenty of grunt.

Friday through Sunday (September 11th-13th) see the swell dip a bit but hold in the 4ft to 7ft range. The wind is glassy or light for most of these sessions, making for clean conditions. The 6ft SSW swell on Sunday morning with that 17-second period (combined energy 1975) is a prime window for the skilled surfer. The 7ft on Sunday afternoon is another big one.

Now, look ahead to Friday, September 18th. This is a long-range call, but it's a promising one. We could see a 4ft SW swell, but with a crazy 23-second period. That's a very, very long groundswell. The energy is 2022 and the wind is clean cross-off. The afternoon then jumps to 6ft with a 21-second period and a combined energy of 3578, with glassy conditions. This is a world-class setup for a reef, but those long-period swells can be a bit straight and tricky on a beach break. Here, on this reef, it should be unbelievable.

The run continues through to the 21st, but the size starts to fade. We get a bit of a dry spell from the 22nd onwards, with some small, weak swell (energy dropping to 245 and below) that's not really worth getting wet for. It'll be a wait-and-see after that.

Overall, the best bets are Wednesday afternoon (September 9th) for the pure power and glass, and the long-range promise of Friday the 18th. Keep in mind, this spot can get crowded, and it's for advanced surfers only when it's over 8ft.

Stay safe out there.

Rusty.

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