Cobblestones Surf Forecast and Surf Report

Alright, Rusty here. Let’s break it down.

Water temps are sitting right around average for the season, nothing to write home about.

We’ve got a solid run of surf lined up at Cobblestones, a reef break that knows how to handle a big south-west groundswell. The action starts on Wednesday the 26th of August, but the early part of the week is a bit of a mess. Wednesday morning brings a 16ft swell from the WSW with a very long period of 18 seconds—that’s a ton of energy (14437), but the cross-on wind from the SSW at 15 km/h is going to leave it choppy and lumpy. The afternoon cleans up a touch but stays cross-shore and bumpy. Thursday gets worse: fresh cross-shore winds and lumpy conditions, even though the swell is still pumping (13ft, 15 seconds, 6812 energy). Not the best time to be out there.

Friday the 28th of August sees the swell drop to 7ft, with a cleaner cross-offshore breeze from the SE—finally some decent morning conditions, but the energy is moderate (1489). It’s rideable but nothing special.

Now, Saturday the 29th of August is where it starts to get interesting. The morning is clean with a gentle east wind and 7ft SW swell (16 seconds, 3388 energy). But the real standout is Saturday afternoon: glassy offshore winds from the ENE at just 10 km/h, with a 10ft SW swell (17 seconds, 5338 energy). The conditions are described as exceptional for expert surfers—this is the best window. The swell direction is SSW, which is exactly what this reef loves, and the long period means powerful, well-shaped waves. It’s a reef, so the long period will work in its favour. Crowds are possible here, but that’s the price of quality.

Sunday the 30th of August stays clean in the morning with a 10ft SW swell (17 seconds, 5758 energy) and a cross-offshore breeze, but by afternoon it turns cross-shore and less appealing. Monday the 31st is a write-off with onshore wind and poor surf.

The first week of September is a mixed bag with lots of onshore wind and lumpy conditions, but the swell hangs around in the 10ft to 13ft range. There’s a gap of a few days where the quality drops off, but patience pays off.

The real gold is waiting on Monday the 7th of September. The morning brings 12ft SW swell (16 seconds, 6479 energy) with a clean cross-offshore breeze from the ESE. The afternoon goes glassy—dead calm, 12ft SW swell, 16 seconds, 6542 energy. This is described as exceptional surf for experts. The swell is powerful, the wind is perfect, and the reef will line up beautifully. This is the best session on the board.

Tuesday the 8th of September is another cracker: 13ft WSW swell (17 seconds, 8260 energy) in the morning with a clean cross-offshore breeze from the NNE. That’s a massive energy reading and very clean conditions. Afternoon stays clean with an 12ft swell. This is a long-range standout, so keep an eye on it, but the signs are very promising.

The last few days of the forecast show a drop in size but some clean windows. Wednesday the 9th of September is clean in the morning with 7ft WSW swell, and Thursday the 10th of September has a 8ft WSW swell (19 seconds!) with offshore NE winds—clean and lined up, but smaller.

Overall, the best waves are on Saturday the 29th of August afternoon, and then again on Monday the 7th and Tuesday the 8th of September. Those are the sessions to circle. The swell is big and powerful, so this is for experienced surfers only—especially when it’s over 8ft. Beginners should sit this one out.

Rusty.

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