Trearddur Bay (Holy Island) Surf Forecast and Surf Report

Right then, let’s have a look at what’s on offer for this corner of the region.

Honestly, it’s a quiet picture for the next 16 days at Trearddur Bay (Holy Island). The opening Friday 28 August morning sets the tone: just 1ft of weak, short-period SSW windswell with a cross-onshore breeze and poor conditions – not worth getting wet for. That pattern sticks through the weekend. Saturday 29 August sees a cleaner moment with an ESE cross-offshore in the morning, and the swell lifts to 3ft, but the energy is still low and the wave quality is poor. Saturday afternoon turns clean again with a NE offshore but drops back to 2ft. It’s frustrating – the right wind direction but no real push in the water.

Sunday 30 August turns ugly: onshore winds build, and by the afternoon the swell climbs to 4ft but it’s lumpy and choppy with a strong cross-on. The week ahead does see a pulse of swell energy arrive from the 31st through to 3 September. Monday 31 August shows a combined energy reading of 162 (moderate), but the wind is cross-on and fresh, making it messy all day. That energy builds further by Thursday 3 September when the combined energy hits 313 (strong) and swell heights push 6ft, but the wind is howling from the SSW at 28 mph – it’s onshore and messy, and the break is fairly exposed. At that size and with that wind, it’s more of a kite-surfing setup than paddle surfing.

There’s a small glimmer on Sunday 6 September: the afternoon swell reaches 6ft with a combined energy of 211 (moderate-to-strong) and the wind drops to just 3 mph – almost glassy. But it’s a cross-on, and the break is inconsistent by nature, so you’d need a bit of patience. The period is only 6 seconds, so it’s windswell without much shape. Still, that Sunday afternoon is about as good as it gets.

After the 7th, the swells fade and the energy drops back to weak numbers. By the 10th of September, there’s no recorded swell at all, and the 11th and 12th show zero wave energy. So from around the 8th onward, it’s a real blank run – a week or more with nothing to recommend, which is pretty normal for this area when the charts are quiet.

If you’re a beginner and just want to bob around, the cleanest chances are Saturday 29 August morning or the light wind window on Sunday 6 September afternoon. For anyone looking for proper waves, this 16-day stretch is a wipeout.

Rusty.

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