Cable Bay (Porth Trecastell) Surf Forecast and Surf Report

Alright folks, Rusty here with a look at what’s cookin’ for Cable Bay (Porth Trecastell). Gotta be straight with ya – this is one of those outlooks where you might wanna take up a hobby for a bit. The next 16 days are a tough stretch.

Right off the bat, there’s a big ol’ gap of dead calm with absolutely nothin’ worth paddling out for. For the first week and a half, the wind is just relentless. We’re talkin’ fresh cross-onshore breezes shredding what little swell we get. Monday the 14th kicks off with waist-high 2ft slop from the SSW, but it’s blown out with a 12 mph cross-on wind. That afternoon it gets worse – 22 mph winds with 4ft of messy chop. That weak energy (22) is just not gonna let you catch a clean wave. Tuesday and Wednesday look similar, with bigger numbers like 5ft showing up, but those moderate to fresh winds just turn it into a washing machine.

Even the combined energy briefly hitting 130 (moderate energy) on the 17th and 19th doesn’t matter – the onshore flow kills any chance of a decent wave. It’s a solid two-week run of “poor surf conditions” from the forecast.

Now, a glimmer of hope way out there. We finally see a switch. Check out the morning of Wednesday the 23rd of September – glassy conditions! For the first time in ages, it's calm. The swell is a tiny 3ft from the SSW with a short, weak period of 4 seconds, but that glassy surface and clean lines will be a sight for sore eyes. Don’t get carried away, the energy is still low (39), but it’s a paddle-out worthy of a sunrise session.

The real standout, and I mean the *only* real standout in this whole outlook, is Saturday the 27th of September. The morning shows a crisp NE wind at 12 mph blowing offshore. The swell is pretty much a non-factor at just 0.3ft from the S, but that wind direction is perfect for Cable Bay. The water temp is 62°, which is a touch warmer than normal for this time of year, so you won't freeze. With such tiny surf, you're looking at a day for a longboard or a bodysurf – but it’ll be clean, quiet, and the most surfable window in this whole lousy run. It’s the only time that offshore wind and clean conditions line up right. After that, it fades back to tiny, weak leftovers.

So, in short – write off the first two weeks. That Saturday the 27th is the one to put a star next to, but keep your expectations low on the wave size. The rest is a blown-out, flat mess. Hang in there, kids. Forecasts can change, but this one looks like a long dry spell. Rusty out.

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