Portreath Beach Surf Forecast and Surf Report

Alright, grab a cuppa, because the forecast for Portreath Beach is a bit of a mixed bag. We’ve got some promise on the horizon, but you’ll have to be patient.

Overall, the next couple of weeks are looking like a story of waiting for the right window. There’s plenty of swell energy kicking around – we see some big numbers in the combined energy, like 545 (moderate) on the morning of the 9th and a massive 1390 (strong) on the 16th – but the wind is the real boss here, and it’s making a mess of things for most of the run. The water temperature is sitting at about 64°F, which is a touch warmer than normal for this time of year, so you can get away with a spring suit.

We start off on Wednesday, the 9th of September, with a solid groundswell from the W at 5ft and 9 seconds period, but a strong NNW wind of 12 mph is blowing straight onshore. That’s a write-off. That pattern of onshore or cross-onshore winds sticks around through the weekend, with Thursday afternoon seeing a bump in swell to 7ft from the WSW but a messy 19 mph cross-offshore wind. The surf is there, but it’s ugly.

Now, you’ve got to keep an eye on Tuesday, the 15th of September. This is our standout. The swell drops back to around 3ft from the W, with a period of 10-11 seconds. What makes it special is the wind: a clean, moderate offshore breeze from the SSE at 12 mph. That’s 12 mph offshore at Portreath – that’s about as clean as it gets here. The combined energy (226 – moderate) tells you there’s enough push for a fun session. It’s a fairly exposed spot, and the northwest swell direction lines up perfectly with what the break wants. This is an intermediate-level wave, and with that offshore wind, it’ll be peeling nicely. Expect a few folks out – crowds are listed as "often" here – so bring your patience, but it’ll be worth it.

After that, things get bumpy again. The 16th of September brings a big 10ft swell from the WNW, but with 22-25 mph onshore winds, that’s a washout. Too big and too blown out for a paddle. Honestly, with that wind and beach setup, it might be more interesting for the kite crew.

The second week is a quieter story. The swell hangs around a bit, with some waist-high lines from the W, but the wind continues to chop things up. There’s a flicker of hope on Sunday, the 20th of September, with a 6ft WSW swell and a cross-shore wind, but the combined energy (599 – moderate) doesn’t outweigh the lumpy, cross-chop conditions.

The real second-week highlight is Wednesday, the 23rd of September, moving into Thursday, the 24th of September. The swell settles to a clean 4ft to 4ft from the W, with a nice 11-second period. The wind turns light and cross-offshore from the S and SSW, at 6-9 mph. The combined energy sits at a modest 340-396 (moderate), but the conditions will be glassy and clean. With light cross-offshore winds at a beach break like this, the waves will have shape and won’t be too straight. It’s a long-range call, so take it with a pinch of salt, but this Thursday morning session could be a real gem.

So, to wrap it up: Tuesday the 15th is your best bet for clean, fun waves right now. The long-range window around the 24th is promising but less certain. There are gaps of a few days between decent conditions, but the energy is there – it just needs the wind to play ball.

Stay wet, stay patient.
Rusty

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