Portreath Harbour Wall Surf Forecast and Surf Report

Alright folks, Rusty here. Let's take a hard look at what's coming up for Portreath Harbour Wall. I've got to be straight with you – the start of this forecast window is a proper write-off for a solid week, but there's a glimmer of something special at the very end.

The forecast opens on Sunday the 30th of August, and honestly, you can forget about it. We're looking at a lumpy, cross-shore mess with a 6ft to 8ft WSW windswell. The combined energy is moderate (477 to 696), but with a fresh 18-22 mph breeze tearing across the face, it's just blown-out junk. This poor quality carries right through until Friday the 4th of September. We see some bigger pulses, like a 10ft WNW swell on Monday the 31st, but the wind is onshore or cross-onshore, and the energy readings are all poor to moderate. Not worth getting wet.

We finally get a little hope on Sunday the 6th of September. The wind swings to a light cross-off from the SSW, around 12 mph, and it'll be clean. The swell has backed off to 5-5ft from the West with a 9-second period. The energy is only moderate (333-367), and the rating is marginal, but the clean conditions make it the first possible look. This clean, cross-off wind pattern holds through Monday the 7th, with the swell building to 6-7ft, and even into Tuesday the 8th when it pumps up to a solid 10ft. That morning on the 8th looks massive with very strong energy (1955), but by the afternoon the wind shifts cross-on and ruins it. The rest of that second week is a mixed bag of onshore winds, smaller swells, and generally poor surf.

Now, hold onto your leashes, because the real pay-off is at the very end. Saturday the 12th of September is looking prime. Morning sees a 8ft swell from the West (10 second period) with a light offshore SSE breeze at 6 mph. The energy is high (985) and the conditions are clean. This is your standout window. The afternoon eases to 6ft but stays clean with a gentle offshore.

The absolute best of the forecast, and the one I'm circling on my calendar, is Sunday the 13th of September. We've got a solid 12ft West swell rolling in with a 10-second period, pushed by a gentle 9 mph offshore breeze from the East. The combined energy is over 4000 – that's very strong, powerful surf. The rating is excellent for experienced surfers. This is a big, clean, powerful groundswell hitting a reef break. It won't be for the faint-hearted; this is expert territory with a size over 8ft, but for those with the skills, it will be the session of the month. The crowds here at Portreath Harbour Wall are often a factor, so get down early. The water temperature is about average for the time of year.

Monday the 14th still looks fun with a 5ft clean swell, but smaller than the Sunday blast.

So to sum it up: the next week is a right-off. There's a small window of clean, marginal surf from the 6th to the 8th. But the clear winners are the Saturday 12th and Sunday the 13th, with Sunday being the absolute standout – a big, powerful, clean swell for the experts.

Rusty.

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