Mawgan Porth Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s be straight with you – this is a tough 16-day stretch for Mawgan Porth. The forecast is pretty grim, with no real standout sessions where everything comes together. The whole period is littered with poor conditions, so we’re looking at a long, blank run.

The first surf we see, on Tuesday morning, August 25th, is a small 2ft swell from the west with a 10-second period, and the combined energy is weak (71). The wind is a gentle offshore from the east, keeping things clean. The water temp is 65°, which is a touch warmer than average for this time of year. It’s surfable, but it’s very ordinary. After that, it’s a wasteland for days.

The wind turns on us, and by Tuesday afternoon the rain and poor surf conditions kick in. We see a few days with small, weak swell, but the wind is never right – it’s cross, cross-on, or onshore, and often lumpy or choppy. Thursday morning, August 27th, has a fresh 19 mph cross-on wind that just ruins the 1ft to 3ft waves. The energy is weak (33 to 131). It’s not worth paddling out.

The swell tries to build a bit over the weekend. Friday, August 28th, sees 5ft west swell, but the wind is onshore and messy. The energy is moderate (254 to 260), but don’t get excited – it’s a poor surf condition. By Saturday, August 29th, the swell jumps to 8ft from the WSW, with strong energy (744 to 867), but it’s blown out with a fresh onshore wind. That’s getting too big for beginners and the wind is just too strong for clean waves.

The second week doesn’t get any better. Sunday, August 30th, through to the end of the period, we see a lot of swell, some of it quite big – up to 10ft on September 5th and 6th, with very strong energy (1677 to 2195) – but the wind is a constant problem. The combo of strong onshore or cross-onshore winds and lumpy, messy conditions means the surf is blown out or just plain ugly. A 9-second period on the 2 of September, with a 7ft onshore swell, is just a washing machine.

The long period swell arriving on September 7th to 9th, with a 12-second groundswell, might offer some shape, but it’s trapped under onshore winds. By September 9th, we get a 6ft west swell with a 12-second period, and the wind lightens to a gentle cross-on from the northwest. The energy is still strong (760), but it’s a long-period swell, which can break a bit straight on a beach break like Mawgan Porth. The light cross-on wind is an improvement, but we’re still looking at “fairly choppy” conditions. It’s the least bad day of a rough run.

Honestly, for a beginner or anyone looking for a paddle, there’s almost nothing to recommend here. If you’re a kite surfer, those big, windy days from August 29th through the first week of September look far more interesting than anything on a surfboard. The consistent poor conditions, especially the strong winds, mean you’re better off waiting for the next pattern change. Forecasts can change, but right now, it’s a hard pass.

Rusty.

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