Trearddur Bay (Holy Island) Surf Forecast and Surf Report

Alright folks, Rusty here. Gotta be straight with you – looking at the next 16 days for Trearddur Bay (Holy Island), it’s a tough stretch. The water is sitting at 62°, which is a touch warmer than normal for this time of year, but that's about the only thing that's playing ball. We’ve got a long, dry spell of poor surf conditions ahead. The first real glimmer of anything rideable is a long way off, and even then, it’s not much.

Let’s be honest, the first week is a write-off. Thursday the 3rd kicks off with a 4 ft SW swell (155 energy), but with a 16 mph SW wind howling onshore, it’s just messy. That pattern holds through the whole first week: wind mostly onshore or cross-onshore, periods short and weak. The swell bumping up to 6 ft on Friday the 4th and again on Tuesday the 8th (178 energy) is just blown out junk. That 5 ft on Sunday the 6th (164 energy) is raw and lumpy with fresh cross-onshore wind. Not worth the paddle out.

We do get a bit of a pulse mid-week. Thursday the 10th morning shows a 6 ft SSW swell (211 energy) – that’s the biggest number we see – but it’s still under a gentle cross-onshore breeze. The period is only 6 seconds, so it’s weak, short-period wind swell. It’s listed as "poor surf conditions." The afternoon of the 10th goes glassy-light with a 3 ft swell, but again, the quality just isn't there.

After that, it’s a long, slow drain. From the 11th of September right through to the 18th, we’re looking at swell heights dropping under 2 ft, with most days showing zero energy. The 13th and 14th finally show some clean offshore winds from the NE and NNE, but the swell is a flat 0.3 ft. That’s not surf, that’s a lake.

The standout – if you can call it that – is the morning of Thursday, 10th September. It’s the only sniff of moderate wave energy (211) in the whole forecast. The 6 ft SSW swell gives the bay the most size, and while the wind is cross-onshore, it’s only a light 9 mph breeze. The swell direction is SW, which is the optimum for Trearddur Bay. It’s not clean, it’s not perfect, but it’s the only window where the size is there to make something of a session. Expect crowds to be possible, as it’s the only real option in a long, dry spell.

For everything else, the setup is too small, too windy, or both. Honestly, with the strong winds and poor wave quality on the bigger days, this looks more interesting for kite surfing than paddle surfing for most of the period. It’s a tough one to swallow, but sometimes the ocean just gives you a rest.

Stay patient, lads. This blank run is normal for the area when the patterns lock in like this. Forecasts can change.

Rusty.

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