Cobblestones Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s coming our way.

We’ve got a solid run of swell on the cards for Cobblestones (advanced reef), but the wind and size are going to sort the men from the boys. The first proper window of opportunity looks like Wednesday the 16th of September. The morning serves up a clean 6.6 ft SW swell with a 13-second period—moderate combined wave energy (1757)—and a light cross-off breeze from the NNE. It’s only a 3 out of 10, but the water is about average for the time of year. The afternoon cleans up even more with a light N breeze and 5.2 ft SW swell, still 13 seconds, and a better 4 out of 10. That’s your first real go.

Thursday the 17th sours quickly as the wind swings NNW and picks up, putting a cross-chop on 4.9-5.2 ft WSW swell. Not worth waxing up for. Friday the 18th is a write-off; the wind howls from the NW at 34 mph in the afternoon, blowing out a 16.4 ft WNW swell. That much energy (6273) with that wind is for kite surfers, not paddle surfers.

The weekend and into early next week is a no-go. Saturday the 19th and Sunday the 20th are ruled by cross-onshore winds and lumpy, choppy conditions on 7.5-13.1 ft WSW swell. Too messy. Monday the 21st has a clean 11.5 ft SW swell in the morning with a light WSW offshore, but it’s still marginal due to tide and the 13.1 ft afternoon gets chopped up.

The standout window is Wednesday morning the 23rd of September. This is your best bet. Glassy conditions, light NW wind at 3 mph, and a clean 8.2 ft SW swell with a solid 13-second period. The combined energy is strong (2377). At 8.2 ft, this is for advanced surfers only. It’ll be a proper session with no bump on the face.

After that, conditions get messy again until Monday the 28th of September morning, which has a clean but smaller 6.2 ft SW swell with light SW winds. For a 3 out of 10, it’s an option, but nothing special.

Then we get a second notable spike: Tuesday morning the 29th of September. It’s big at 13.1 ft SW with an 18-second period—very long period groundswell (9765 combined energy) and light SW winds. That’s a heavy, powerful reef setup. Only for experts. Crowds are possible here, so be ready for company on those sets.

We also get a clean window on Wednesday the 30th of September morning with a 9.8 ft SW swell—16 seconds, moderate energy (5365)—and a cross-off SSE breeze. Another one for the experienced crew.

So to wrap it up: the first week is a mixed bag with two clean slots—Wednesday the 16th afternoon and Wednesday the 23rd morning being the standouts. The second week has a big, powerful swell on the 29th and 30th. If you can handle the size and the reef, those are your sessions. There are gaps of a few days with poor conditions in between, so pick your day.

Stay safe out there.

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