Cable Bay (Porth Trecastell) Surf Forecast and Surf Report

Right then, let’s have a look at what’s on the cards for Cable Bay (Porth Trecastell). I’ll be honest with you, this is a tough stretch to call. The next sixteen days are pretty quiet for most of it, but there’s a spike of something proper on the horizon, if you can wait.

The pattern is a long, drawn-out lull. From now through the end of August and into early September, the swell is tiny. You’re looking at maybe 0.3ft to 1ft for days on end, with a bit of a blip up to 4ft on the 27th and 28th of August, but that’s accompanied by poor conditions. The combined wave energy is pitiful – you’ll see numbers like 12 and 20 – nothing to get excited about. The wind is all over the place, and most of the time it’s cross-on or onshore.

Honestly, for most of the first week and a half, it’s a write-off. There’s a big gap of nothing surfable. Then, around the 2nd of September, things change. We get a proper pulse of swell. Wednesday the 2nd of September sees 7ft from the SW, and the combined energy jumps right up to 400 and then 474 – that’s proper power for sure. The problem is it’s being hammered by a fresh cross-onshore wind right through that day, so it’ll be lumpy as hell. Not clean.

The real standout, the one to pencil in, is the next morning. Thursday the 3rd of September. The swell is still sizeable, holding around 7ft from the W, with energy at 286. The wind swings around to a light onshore from the SW at 6 mph, but that’s manageable. It’s a big, powerful groundswell with a short period of 6 seconds, so expect a bit of a mess at the sandbanks. This is pretty clean for the area, and for the experienced surfer, those 6-7ft sets will be there to be had.

Later that afternoon, the swell actually pushes to 7ft from the WNW, with 308 energy, but the wind turns cross-onshore again. So, Thursday morning is your best chance. It’s a bit too big for beginners, but for the rest of you, it’s the only real window of quality in this whole 16-day run.

From there, it drops off sharp again. The 4th and 5th of September are back to poor, small conditions. The long period swells at the very end, on the 5th and 6th of September, are too small to do anything at this exposed beach break – they’d just be lining up too straight.

So, you’ve got a long wait. Be patient. Mark your calendar for Thursday morning, the 3rd of September. That’s your chance. The rest is a waiting game.

Rusty.

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