Trearddur Bay (Holy Island) Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get straight into it for Trearddur Bay (Holy Island).

Right off the bat, I’ve got to be honest with you – this 16-day window is looking like a tough one for the paddle crew. We’ve got a long stretch of real small, weak, or blown-out conditions. The first few days are basically a write-off for any kind of decent ride. Monday the 24th and Tuesday the 25th are showing tiny 0.3ft swell with a long period energy, but it’s just not enough to do anything with, and the combined energy is barely a whisper (12). It’s clean, but there’s nothing to surf.

The gap stretches through the rest of the week. Wednesday the 26th through Friday the 28th offers a tiny bump up to 1ft, but the period drops to 8 seconds or less, and the wind is all over the place – cross-off, onshore, and that 4ft on Thursday the 27th is coming in with a short 5-second period and onshore wind, making it a total mess. The combined energy on Friday the 28th morning jumps to 228 (moderate), but the swell is 4ft from the SSW with a cross-on wind, so it’s poor surf. We’re looking at a solid week of nothing worthwhile.

The weekend (30th-31st August) is a no-go. Strong winds – 55 km/h (34 mph) on Sunday the 30th afternoon – and near gale conditions are going to make it a kiter’s session, not a surfer’s. The swell is tiny and onshore.

Then there’s a big gap. The next event of note is on Wednesday the 2nd of September. The swell jumps up to 7ft from the SW with a 7-second period. The combined energy is strong at 400. But the wind is a fresh to strong cross-onshore, making it messy and lumpy. This is a lot of water moving, but the quality is poor – definitely expert territory due to the size, but the wind is going to ruin any shape. It’s a frustrating one.

Thursday the 3rd of September is your best bet in this whole outlook, and it’s a bit of a wildcard. The morning sees a 7ft swell from the W with a 6-second period, but the wind is light and onshore. The combined energy is 286 (moderate to strong). The afternoon is a similar story with 7ft. The “marginal” tag on the morning is a hint that the tide might be a factor, but for a local, this is the only window with any real power. The wind is light, so it won’t be a total blowout, but it’s not the clean, offshore glass we’re after. You’ll be taking what you can get.

After that, the swell fades away again. Friday the 4th drops to 4ft, and from Saturday the 5th onwards we’re back to tiny 0.3ft, 1.0ft ankle-biters with long periods and no energy. The combined energy drops to 18 or 26. It’s clean, but it’s flat.

So, to sum it up: this is a quiet period, with a long gap of no surf at the start. The only real standout is Thursday the 3rd of September, where the swell is solid (7ft+) but the wind is not ideal. It’s the only window with any grunt, and it’s a “take what you can get” deal. For the rest, it’s a waiting game. Forecasts can change, so keep an eye on it, but for now, the board stays in the van.

Rusty.

Read more