Flatrock Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a proper look at what’s coming our way for Flatrock. It’s a reef setup, strictly for advanced surfers, and we’ve got a real mixed bag of conditions over the next couple of weeks.

We start off with a bang. Friday afternoon, the 28th of August, sees a solid 8ft SW groundswell rumbling in with a very long 16-second period. The energy is pumping (2525), and with light SE cross-offshore winds, it’s going to be clean. The water temperature is right on average for the time of year at 59°F, so nothing unusual there. This is proper, powerful stuff for experienced surfers only – a real standout.

Saturday the 29th keeps the quality high. The morning is your best bet with a clean 5ft SW swell, 14-second period, and beautiful offshore E winds. It’s still a bit heavy, but the conditions are spot on. The afternoon drops off a touch, becoming marginal with a smaller 5ft swell and cross-offshore winds.

Sunday the 30th offers a tale of two sessions. The morning has a long-period, 20-second SSW groundswell at only 3ft, but it’s clean with offshore winds. That long period will make it a bit fat and straight at a beach, but on a reef like Flatrock, it’s got some serious shape. The afternoon brings a much better 7ft SSW swell with the same long 18-second period and clean offshore winds. This is another excellent window, but again, it’s big for a reason.

Then things get interesting. Monday the 31st brings a big 8ft SW swell, and the morning session with NE cross-offshore winds looks absolutely pumping (energy is a massive 7457). The catch? The data flags it as questionable for tide, and this size is firmly in the expert-only zone. A proper heavyweight session if you’re brave enough.

After that, we hit a long dry spell. From Tuesday the 1st of September right through to the 8th, the winds turn ugly. We’re looking at strong onshores, cross-shore gales, and generally blown-out, poor surf. The swell sticks around, often 8ft to 13ft, but with wind from the N, W, and WSW, it’s just a messy, dangerous wall of water. This stretch is a complete write-off for a paddle board; the setup might be more interesting for kite surfing.

The first glimmer of hope comes on Tuesday the 8th of September. The swell drops back to a manageable 7ft, and the wind eases right off to a light SSW cross-onshore. It’s still a bit questionable, but it’s a sign the weather is backing off.

Wednesday the 9th and Thursday the 10th remain marginal, with moderate to light winds and a steady 6ft to 7ft SW swell. Nothing to get too excited about, but the wind is improving.

Finally, we get another potential standout on Friday the 11th of September. A clean 8ft SW groundswell with an 18-second period and gentle N cross-shore winds. The energy is strong (4679), and this is another one for the big-wave crew, but the conditions look a lot more promising than anything we've seen in the past week.

The run continues into Saturday the 12th, but the wind picks up again, getting fresh and lumpy, so that Friday morning is clearly the best option in the second week. It’s still a long way off, so keep an eye on it.

All in all, the first few days are the real prize here. After that, it’s a waiting game for the wind to play nice.

Rusty

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