Flatrock Surf Forecast and Surf Report

G’day, this is Rusty. Righto, we’ve got a solid 16-day window ahead for Flatrock (reef), a real exposed SW-facing jewel for the advanced crew. The water temp’s sitting at 59°, which is pretty much bang on average for this time of year, so nothing wild there. The whole period kicks off with some serious pulse, but you’ll need to pick your windows carefully because conditions get messy fast.

The main story here is a pumping SW groundswell with long 14-16 second periods, piling in with strong wave energy (1062) right from Monday morning the 24th. Offshore ENE breeze at 20 km/h, clean lines, and 5 ft of swell – that’s a proper standout for experienced surfers. But don’t get too excited for the arvo; the wind swings SW onshore and drops the quality to marginal.

Tuesday the 25th sees the swell jack up to 10 ft with energy going through the roof (7475), but it’s cross-shore winds and lumpy chop. That’s big, heavy water – over 8 ft, so strictly for experts. Keep your wits about you.

From Wednesday the 26th through Thursday the 27th, it’s a mix of 5 ft to 6 ft swell but cross-chop and lumpy conditions spoil it. Not worth paddling out unless you’re desperate.

Friday the 28th morning pulls up a bit cleaner: 8 ft SW swell with NNE cross-off wind, smooth face. Energy’s high (3214). That’s a decent session for the skilled crew, but it’s right on the edge of too big for intermediates.

Now, here’s the real sweet spot. Saturday the 29th and Sunday the 30th – both mornings dish up offshore winds (ENE and E), clean surface, and swell sitting at 5 ft to 4 ft. Saturday’s got 5 ft SW swell with moderate offshore energy (1167), while Sunday drops a bit but the period stretches to a very long 19 seconds (1201 energy). That groundswell will wrap nicely around the reef, with long lines and easy paddle outs between sets. These two mornings are the best of the first week – clean, manageable, and just glassy enough to make you smile. Crowds can pop up here sometimes, so get in early.

Monday the 31st of August ramps right back up to 10 ft SW groundswell with a long 18-second period, but it’s cross-shore and onshore winds. Too much power and chop for anything but a heavy session.

From 1st September through the next week, the swell stays solid but wind keeps messing things up. Tuesday 1st and Wednesday 2nd mornings offer some clean patches with cross-off wind (7 ft to 6 ft, SW), but the energy is high (1825–3210). Thursday 3rd and Friday 4th go onshore and lumpy again. Saturday 5th morning shapes up well with 8 ft SW, N cross-off wind, and clean (2467 energy) – worth a look for the experts.

Sunday 6th and Monday 7th September? Forget it. Winds howling 30–50 km/h, swell pumping 12 ft to 20 ft, with energy reading 10,000+ – that’s blown out and dangerous. Tuesday 8th stays messy with 13 ft and strong onshore winds.

The last real standout lands on Sunday the 30th of August morning – only 4 ft but that 19-second period makes it a dreamy longboard or step-up session if you’re keen. Otherwise, the best bet of the whole run is Saturday the 29th of August morning. Clean, friendly size, and that reef will be working. Things get unreliable in the second week, so keep an eye on those forecasts – but the first weekend is your call.

This is Rusty, signing off.

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