Cobblestones Surf Forecast and Surf Report

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

This is a 16-day window with a real slow start, but once it comes together, it offers some proper windows for the experienced crew. The first few days are messy, but there are two standout moments for the advanced surfer.

Right out of the gate, we’ve got a big, powerful 15 ft swell from the WSW on Tuesday the 18th, with a period of 16 seconds, but the wind is a cross-on 15 mph. The water is a touch warmer than normal at 67°. The combined swell energy is a whopping 8957, so there’s plenty of juice, but it doesn’t matter because the conditions are poor. That big swell is just too much with the wind on it.

Wednesday the 19th is more of the same: big 15 ft to 16 ft swells and strong onshore winds. Things start to get interesting on Thursday the 20th, with a 13 ft swell from the WSW and lighter winds, but it’s still a bit messy and marginal.

The First Standout – Friday Morning, August 21st
This is the gem. Friday morning brings a 12 ft SW groundswell with a 15-second period. The combined energy is still strong at 5625. What makes it special is the wind: dead calm, glassy. The report says "exceptional surf conditions for expert surfers". This is the one to point your board at. The water is still a touch warmer than normal, and with that long period, the waves will have plenty of shape and power. Cobblestones is a reef break, so it will handle that long-period groundswell perfectly. Expect the crowd to be around sometimes.

Friday afternoon and Saturday (22nd) see the swell drop to 10 ft and 8 ft, with light winds, but the quality backs off. Sunday the 23rd through Monday the 24th is a write-off as a fresh onshore breeze from the S and NW brings choppy, poor surf. The swell drops right down to 7 ft, and the energy falls to 1707.

The Second Standout – Thursday Morning, August 27th
We get a bit of a gap in quality, but then Thursday the 27th delivers. The wind swings to a light offshore from the ENE at 6 mph, with a 12 ft SW groundswell at 13 seconds. The conditions are clean. The combined energy is 4117. This is clean, powerful surf for experienced surfers. The offshore wind will make the takeoffs critical.

Friday the 28th still has clean conditions but a much smaller 5 ft swell from the S. The rest of the period through the end of August and into early September is a mix of onshore winds and building swell, with the occasional clean window (like Monday the 31st with a light offshore and 8 ft swell). The first week of September sees the swell size picking back up to 13 ft, but the wind is generally cross or cross-on, keeping it marginal.

Overall, the best two windows are the glassy Friday morning of the 21st and the offshore Thursday morning of the 27th. Both are for the advanced crew. The rest of the time, it’s a battle with the wind.

Rusty.

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