Black Rocks Jetty Surf Forecast and Surf Report

Alright, this is Rusty. Let's break down what's cooking at Black Rocks Jetty.

We've got a slow burn to start. The first surf worth mentioning comes on Wednesday, September 3rd, but it's pretty weak. We're looking at tiny 2ft to 2ft swell out of the SW with glassy conditions – clean, but you'll be on a log or a float. The energy is low, around 146 to 144. The water is running about 77°, which is a touch warmer than average for this time of year.

Thursday the 4th gets a bit more interesting. The swell builds to 2ft in the morning, then jumps to 5ft by the afternoon, still from the SW. The period hits 19 seconds in the morning and 17 in the afternoon – that's proper groundswell. The energy climbs from 463 to 1221. The wind is light cross-on in the morning, then turns clean onshore in the afternoon, so the morning is the better call.

Friday the 5th is a mixed bag. Morning shows 5ft from the SW with a 14-second period, light cross-on wind, and energy over 1000. It's surfable but marginal. The afternoon drops a bit to 5ft.

Sunday the 6th is where we start to see some of the best conditions early on. The morning is glassy, with 4ft of SW swell, 13-second period, and energy around 641. They're calling for very good surf. If you're heading out this week, this is the morning.

Things step up the following week. Monday the 7th sees the swell climbing to 7ft by morning from the SSW with a nice 15-second period. Energy is cooking at 1801. But the wind is a cross-on 15 mph from the south, making it lumpy. This is for the experienced crew.

The real standout window is Tuesday the 8th through Wednesday the 9th. Tuesday morning brings 10ft from the SSW with a 15-second period, clean offshores from the east, and energy ripping at 4545. This is excellent for experienced surfers. Tuesday afternoon gets even bigger at 12ft.

But Wednesday the 9th is the one. The morning is glassy – zero wind, an 12ft SSW groundswell with an 18-second period, and energy at 6587. This is exceptional for experts. The afternoon is still glassy with 10ft and a 17-second period. If you're advanced, this is the best of the entire 16-day window. This reef will love that long-period energy.

Thursday the 10th sees the swell drop to 5ft in the morning, still glassy with a 15-second period – clean and fun. By the afternoon the wind shifts, so hit the morning.

The second week fades in size. Friday the 11th has a glassy afternoon with 2ft from the SSW and a 16-second period – clean but tiny. Saturday the 12th is mostly a write-off.

We get another pulse around Tuesday the 15th. The morning shows 6ft from the SSW with glassy conditions and energy at 732, called as very good surf. The afternoon jumps to 8ft with a 12-second period and glassy wind – excellent for experienced surfers.

Wednesday the 16th brings 10ft from the SSW with a 15-second period, but the wind is light cross-on, so a bit less clean.

Thursday the 17th wraps it with 6ft from the SSW, a 14-second period, and clean offshore winds.

Final call: Wednesday, September 9th is the absolute standout. That glassy, 12ft, 18-second groundswell at Black Rocks Jetty is the session to plan for. Tuesday the 8th and Tuesday the 15th are also strong. For everyone else, Sunday the 6th and Thursday the 10th mornings offer clean, smaller waves.

Black Rocks Jetty is very consistent and exposed, so it picks up most swells. Crowds can show up sometimes, so get in early on those big days. The reef handles long-period groundswell really well, giving you proper shaped waves.

Keep it salty, Rusty.

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