Mawgan Porth Surf Forecast and Surf Report

Alright, let’s take a look at what’s cooking over the next couple of weeks here at Mawgan Porth. Honestly, it’s a pretty bleak stretch for the most part. We’ve got a big gap of poor conditions right through the first week and into the second, with a ton of onshore and cross-onshore wind messing up whatever swell is around. The water temp is sitting at 65°, which is a touch warmer than normal for the time of year, so at least it won’t feel cold while you’re staring at junk.

It’s not until the 4th of September that we see a bit of a lift. Friday afternoon, the 4th, we’ve got a nice 3ft swell from the WNW with a very long period of 13 seconds, and it’s blowing onshore at 15 mph, but the wave energy reads 608 – moderate to strong, and the clean swell window might hold something glassy if you get lucky. That’s the first real standout but it’s not exactly firing.

Then on the 7th of September, Monday morning, things get serious but dangerous. The swell cranks up to 12ft from the WNW with a period of 9 seconds. The wave energy is through the roof at 1807 – that’s very strong energy. The wind is light from the NW at 6 mph, nearly offshore. This is a big, raw, powerful swell. But to be blunt, Mawgan Porth, which is a river break, is going to be way too big for anyone who isn’t a total expert. That size and short period in a river setup? It’s a mean, unpredictable beast. The comment says it’s too big for this break, and I’m inclined to agree. So while it’s the biggest, it’s not a good call for the average surfer. That afternoon, it drops to 7ft with clean light wind, but it’s still heavy.

After that, it’s back to mediocrity. The 8th of September Tuesday afternoon has a clean, cross-offshore wind from the SSE at 9 mph, with a 5ft W swell at 11 seconds – a nice long period groundswell. The wave energy is 590, so there’s push, but the scores are low, so expect it to be fickle and maybe tide-dependent. For the true connoisseur who can work a river break, that Tuesday session might be your best bet for something clean, but not much else.

So, the honest take: if you want to surf here, the 4th September afternoon has the most potential for a clean wave on a manageable size, and the 7th is for experts only. The rest is mostly blown-out or too small. Crowds are listed as "sometimes" at Mawgan Porth, so you might have some company on those cleaner days. No massive standouts, but there are a couple of windows if you’re patient.

Rusty.

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