Mawgan Porth Surf Forecast and Surf Report

Right, let’s have a look at what’s on offer for Mawgan Porth over the next couple of weeks.

Honestly, it’s a bit of a rough stretch for us. The water is sitting at 65° – a touch warmer than usual for this time of year, about 3° above the norm, so enough to notice but not weird. That’s the only real high point.

We kick off with a small window on Tuesday the 25th morning. It’s tiny – 2ft of WNW swell with a 10-second period, and the wind is light easterly, making it glassy. The combined energy is weak at 71. It’s rideable for a beginner on a longboard, but "ordinary" is the word. That’s the only time we get clean, small surf.

After that, the wind turns on us. Tuesday afternoon gets messy, and Wednesday the 26th is all cross-off breezes with tiny swell (2-2ft) and short periods (8 seconds). Not worth paddling out.

Thursday the 27th sees the wind get ugly – fresh cross-onshore from the SW with 2ft to 4ft, short-period junk – just a choppy, lumpy mess.

Friday the 28th is cleaner in the morning but still weak – 3ft, 8 seconds, and only 139 energy. Even the afternoon goes onshore again.

Then from Saturday the 29th through the 31st, the swell jumps. We’re looking at 6ft to 7ft, but it’s all onshore or cross-onshore with fresh to strong wind. Saturday has 19 mph westerlies, Sunday sees 22 mph WSW. Monday the 31st is even worse – onshore all day. The energy climbs into the moderate range (387-648), but with that wind, it’s a messy, blown-out situation.

Entering September, Tuesday the 1st is a real beast – 8ft to 10ft of windswell from the W, but it’s accompanied by a strong breeze (25 mph) and a cross-onshore mess. The energy hits 1010 and 1814, but this is not for paddling. This is kite-surfing territory if anything. That goes for Thursday the 5th as well, when we get another 8ft to 10ft pulse with onshore winds.

There is a short glimmer on Monday the 7th of September. The morning looks clean with a stiff NE breeze (25 mph) blowing cross-offshore, and we have 8ft of W swell at 9 seconds (energy 848). That’s a decent-sized, clean wave. But it’s strong wind, so keep your rail game tight. The afternoon turns cross-shore and lumpier.

Tuesday the 8th offers a slight, marginal option – 5ft to 6ft, light winds, cleanish in the afternoon, but the energy is low (267-326) and the period is short (7 seconds). It’s borderline.

The real standout, and the one to keep an eye on if you’re an expert, is Wednesday the 9th of September. We get a 8ft to 8ft West swell with a solid 11-second period (moderate energy at 1388-1466). The wind is onshore though – 16 mph W in the morning, 12 mph W in the afternoon. It’s a powerful, clean-looking groundswell setup, but that onshore breeze will chop it up. For the experienced crew only, and expect a battle with the wind.

Overall, there’s very little to get excited about in the first week. The best chance for a surf that isn’t a complete battle is probably that clean morning on the 7th, but even then, it’s strong wind. The long-range call for the 9th has potential if the wind swings, but don’t hold your breath. It’s one of those stretches where the swell comes in but the wind blows it out.

Rusty.

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