St Agnes Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a good look at what’s coming up for St Agnes. I’ve got to be straight with you – the next week and a half is a bit of a mixed bag. We’ve got a solid pulse of swell rolling through, but the wind is going to be a real pain in the arse for most of it. The first decent chance to get wet without getting chopped to bits doesn’t come around until later on.

We start off this Sunday, 6th September, with a weak 3ft W swell at 9 seconds. The wind is howling out of the SSE at 16 mph, which is offshore for St Agnes, so the waves will be clean, but the energy is low. The combined energy is a paltry 120 (weak). It’s surfable, but you’ll be working hard for small, crumbly ones. Honestly, not much to write home about.

Monday 7th sees a big jump in size – a 8ft W swell at 13 seconds rolls in. That’s a long-period groundswell carrying a lot of punch, with a combined energy of 1780 (strong). The problem? The wind is howling out of the WNW at 12 mph, putting a nasty cross-onshore chop on it. That’s a choppy, blown-out mess. Monday afternoon is a little smaller at 7ft, but the wind swings to WSW at 16 mph, making it a cross-shore. It’s heavy, messy, and not clean. This one’s for the experts only, if anyone bothers.

Tuesday 8th through Friday 11th is a real write-off. We’ve got plenty of swell – ranging from 4ft to 7ft from the W and WNW – but the wind is relentless. It’s either a strong cross-onshore from the NW or a direct onshore, keeping everything rough and lumpy. The energy stays moderate to strong (486 to 590), but without clean conditions, it’s unsurfable. The water temperature is about average for this time of year, so no need for a thick wetsuit, but you’ll be wishing you had a kite.

Saturday 12th September is a glimmer of hope. The swell drops to 3ft in the morning, but the wind goes light out of the SW at 9 mph, making it cross-offshore and clean. The energy is only 107 (weak), but it’s a window of clean, small waves. By the afternoon, the swell builds to 5ft from the WSW, and the wind picks up to 16 mph from the SW, staying cross-offshore. It’s a bit bumpy, but the combined energy is 293 (moderate). It’s ordinary, but it’s the best we’ve seen all week.

The real standout, and the one I’m circling on the calendar, is Wednesday 16th September. The morning brings a 5ft W swell at 10 seconds. The wind is dead calm – glassy – and the sky is clear. The combined energy is 509 (moderate), and the forecast says “expect good surf conditions.” This is the best window of the entire outlook. The water is about average temp for the season, so it’ll be comfortable. The crowd factor at St Agnes is “often”, so get there early if you can. The swell direction is from the W, which is the optimum direction for this spot. It’s clean, it’s got push, and it’s going to be good.

After that, the rest of the forecast fades out. Thursday 17th and Friday 18th have smaller, weaker swell (4ft to 4ft) with light winds, but nothing special. The last few days from Saturday 19th through Monday 21st are a write-off again – small, weak, and onshore.

So, bottom line: if you’re patient, hold out for Wednesday 16th September. That’s your day. The glassy conditions and that solid W swell will make St Agnes proper. The week before that is mostly blown out, and the week after fizzles out. The 16th is the one.

Rusty.

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