Black Rocks Jetty Surf Forecast and Surf Report

Alright, Rusty here. Let’s have a look at what’s coming up for Black Rocks Jetty.

Right off the bat, we’ve got a bit of a slow start but nothing to get upset about. The water’s sitting at a touch warmer than normal for this time of year, 76°, which is a nice little bonus for the first few sessions.

The first real chance to get wet is Thursday afternoon, September 3rd. It’s small, around 2ft of SW groundswell, but the wind is glassy. That’s a glassy, clean surface with a long 13-second period. The combined energy is weak (147). It’s surfable, but you’ll be hunting for the little ones.

Friday morning, September 4th, sees a jump in size to 2ft, with the swell period stretching way out to 19 seconds – that’s a very long period groundswell coming from the SW. The wind is offshore, clean. The combined energy jumps to moderate (463). This is a reef break, so that long-period energy will wrap in nicely, but be aware that long period swells like this can make the waves a bit straight at a beach break, but here on a reef, it’s a good thing. Expect clean lines but long waits between sets.

Things start to get interesting by Friday afternoon. The swell pushes to 5ft from the SW, period 17 seconds, and the combined energy is strong (1221). It’s a cross-shore wind, so there will be a bit of texture on the face, but it’s still very surfable.

Saturday, September 5th, is a standout. The morning has 5ft SW swell, offshore wind, and a solid 14-second period. The energy is strong (1094). Then the afternoon goes glassy again, with 5ft waves. That’s a beautiful, clean afternoon session. The waves are a bit too big for beginners, but for anyone with some experience, this is the pick of the first week.

Sunday, September 6th, drops back a touch, but still has 4ft SW swell. The wind is cross-shore, so the surface isn’t as clean, but there’s plenty of energy (892). It’s okay, but not the highlight.

Now, looking ahead to the following week, the real standouts are on Tuesday, September 8th, and Wednesday, September 9th. Tuesday morning delivers 8ft of SSW groundswell with a 16-second period, clean cross-offshore wind, and combined energy cracking a massive 4068. That’s expert territory. The afternoon is a bit bigger at 10ft, but with a cross-shore wind, it’s a bit lumpy.

But Wednesday, September 9th, is the absolute standout. Wednesday morning: 12ft of SSW groundswell, 18-second period, glassy, and a combined energy of 6587. That’s exceptional, expert-only, heavy, powerful waves. The afternoon is still a massive 10ft and glassy. If you’re an expert, that’s the day.

After that, it settles down. Thursday, September 10th, is a nice, clean 5ft in the morning, glassy. A good one for the experienced crew.

The following weekend and into the next week, the swell drops and the wind turns onshore, making it a bit of a write-off until the middle of the following week. Tuesday, September 15th, has a messy 6ft, and it’s chop city.

Then, on Wednesday, September 16th, we get a clean-up. The morning has 4ft SSW groundswell with a very long 19-second period, and cross-offshore wind. The afternoon goes glassy with 6ft waves. That’s a solid, clean day.

The final call for the period is Thursday, September 17th, which is another big day but with cross-onshore wind, making it messy. The morning of Friday, September 18th, is a glassy 8ft, and the afternoon is a glassy 7ft. Those are both excellent, clean, expert-level waves to finish the run.

This spot is very consistent, so there’s always something to look at. The best of the lot is Wednesday, September 9th, and then the two days around the 16th and 18th are also worth a serious look.

Rusty.

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