Castles Surf Forecast and Surf Report

Alright folks, Rusty here. Let's chew the fat on this 16-day stretch starting September 11th. To be honest, it’s a bit of a slow burn for the first week or so. We got swell, but the wind and conditions are playing hard to get.

From the 11th through the 17th, it's a real mixed bag. The 11th kicks off with a clean 4ft SW groundswell at 15 seconds and a moderate cross-off breeze, but the energy is only moderate (707). Water temp is a standard 60°, nothing weird. Saturday the 12th has a cleaner window with a long-period 4ft SW swell from 17 seconds and a cross-off wind, showing moderate energy (1134), but the afternoon gets messy. The 13th is a no-go with a clean 5ft swell but straight onshore winds. We get a pattern of decent groundswells (15-17 second periods) getting chopped by cross-shore winds. The 15th and 16th are the most consistent clean window of the first week: a solid 5ft to 6ft SW groundswell with cross-off winds, moderate to strong energy (1235-1517). That's a proper push, but the low scores hint at tide or something else off. Tuesday the 15th morning and Wednesday the 16th morning are the standouts. That 5ft SW groundswell with clean, offshore to cross-off winds makes Castles the spot. It’s an exposed reef, consistent, and the optimum swell direction is WSW, which is a good match. It’s a beginner break, so 5ft is getting too big for the learners, but for the rest of us, it’s a clean, fun wave. Crowds are only "sometimes" here, but a window like this might pull in a few.

After the 18th, it flat-lines. The 18th and 19th are tiny with weak energy (128-206), not worth the wetsuit. That's a few days of nada.

Then we get a flicker. On Sunday the 20th morning, we've got a clean 4ft SW groundswell with a light offshore breeze and moderate energy (869). It's labeled "very good" for a small day at a beginner reef.

But the real late-show headliner is Tuesday the 22nd of September. This is the biggest swell of the outlook: a 7ft SW groundswell at 16 seconds rolling in. The combined energy is strong (2296). That's a serious groundswell for this break. The morning wind is cross-off, keeping it clean. But at 7ft, we’re in expert-only territory for a beginner reef. It’s for the experienced crew. That 16-second period means heavy, walled-up sets. A long-range call, but a promising one.

The 23rd still holds a clean 6ft SW swell, and by the 25th we get another big 6ft to 6ft pulse from the SW with a very long 18-second period. That's serious groundswell energy (2156), but with cross-shore winds on the 25th, it'll be bumpy. Still, that long period will wrap nicely at a reef like Castles.

So, calling it: your top picks are Tuesday 15th for a solid, clean, manageable swell, and Tuesday 22nd September for a proper, powerful groundswell if you've got the chops. Everything else is a pick-and-choose for the patient.

Rusty.

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