Trearddur Bay (Holy Island) Surf Forecast and Surf Report

G’day, Rusty here. Let’s be straight with you – looking at the next couple of weeks for Trearddur Bay, and it’s a bit of a tough stretch for us.

We’ve got a long gap of days with basically nothing to get excited about. The surf just isn’t there. From the start of the period through the 18th, we’re looking at tiny, weak swell – nothing over 3ft and most of it well under that, with periods mostly in the 4-6 second range. The energy is next to nothing, with combined swell energy values mostly in single digits or the low teens (like 2, 4, 10, 16). It’s just flat, or close to it. The wind is a mix of cross-onshore and onshore for much of it, which isn’t helping. Sure, we get a few glassy moments, like Tuesday the 11th morning and Thursday the 13th afternoon when the breeze drops right off, but with no swell to push in, glassy and flat is just a still, empty ocean. There’s a little lift on Sunday the 16th afternoon with 3ft, but it’s onshore and sloppy, so it’s not worth paddling out for.

Now, there is a bit of a pulse coming through in the third week. On Tuesday the 19th, we see some proper energy arrive – 4ft swell with a period of 6 seconds, and the combined energy jumps to 168, which is moderate. The wind is offshore from the NNE in the morning, which will clean it up, and the report says “surfable waves but very ordinary conditions.” The swell direction is from the SW, which is right in line with what Trearddur Bay likes to see. For a beginner or someone just wanting a few soft ones, that morning could be your best bet of the whole window. But the period is short, so don’t expect much grunt.

Then on Friday the 21st, we see the biggest swell of the period – 6ft in the morning, also from the WNW, with moderate energy (221). That’s pushing into more powerful territory, but the wind is cross-onshore from the W, which will chop it up. It could be a bit of a mess, not the clean, groomed waves we’d want for that size.

So, the honest truth is, there are no standout days here. The only time I’d even grab my board is the morning of the 19th, when the offshore wind and that 4ft SW swell might just line up for a few clean, if short-period, waves. For the rest, it’s a waiting game. The spot is inconsistent at the best of times, but this looks like a particularly quiet spell. Keep the faith, though – with the water a touch warmer than usual for this time of year, at 62°F, the boardies might stay on a bit longer.

Rusty.

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