Flatrock Surf Forecast and Surf Report

Alright, Rusty here, givin' ya the lowdown on Flatrock. This is a solid exposed reef break that needs a good SW groundswell, and we got a proper run of size headin' our way.

We start off this Saturday afternoon, but it's a mess. There's a chunky 12ft SW swell with a long 14-second period, pushing some serious juice (4910), but that strong WSW wind at 22 mph is smackin' it sideways. It's lumpy, blown-out, and ugly. A real shame, 'cause the ocean's got plenty of grunt.

Sunday the 6th looks way better. Early morning the wind drops right off – a light offshore from the WNW at 3 mph – and there's still a solid 10ft SW groundswell on the cards. The sea state's a bit unknown, but there's potential for clean, lined-up reef waves. By afternoon, it stays glassy with a light offshore, though the swell eases a touch to 8ft. This is where the window opens.

Monday the 7th is smaller at 5ft, but clean with a cross-off breeze. Nothin' special, but a good paddle. Tuesday the 8th is where it gets interesting – the swell jumps back up to 8ft with a very long 17-second period (4043 energy). That's proper groundswell, and with a light cross-off wind in the morning, it's gonna be clean, powerful, and lined up. This is a standout for experienced surfers. Keep in mind, a 17-second period can make this reef really peel, but the sets will be a bit spread out.

Wednesday the 9th sees the biggest push of the first week: a 13ft SSW swell with an 18-19 second period and energy numbers well over 9000. That's a massive ocean. The wind is a cross-off, keepin' it clean. This is big, powerful, heavy water – experts only, and it'll be a handful.

Thursday the 10th is another proper day: an 12ft SSW swell, 16-second period, and a solid offshore breeze from the ESE at 12 mph in the morning. That's a recipe for a world-class reef wave. Energy is massive (6650). This is arguably the best of the run – clean, strong, and offshore. Not for the faint-hearted.

After that, the swell slowly eases into the second week. Friday the 11th sees a drop to 7-8ft and a glassy afternoon that looks beautiful for a more manageable session. Saturday the 12th is smaller and chopped out. Sunday the 13th, with a glassy 6-6ft SW swell and a 16-second period, feels like a hidden gem – clean, long lines, and much friendlier.

Now, the middle of the second week gets messy. Monday the 14th is a write-off with strong cross-onshore winds. Tuesday the 15th, though, has a standout pulse: a glassy 12ft SW swell with 16-second period. That's another big, clean day for the experienced crew. The water temp is sitting at 59°F, which is pretty much average for this time of year. The rest of the week is a mix of onshore winds and smaller swell, with some marginal windows.

Towards the very end of the forecast, on the 20th of September, the models are showin' a monster: an 18ft to 20ft SW swell with insane energy readings (over 30,000). The wind is offshore, but the swell is simply too big for this break. That's a day to watch from the cliff.

So, to wrap it up: the two absolute standouts are Tuesday morning the 8th and Thursday morning the 10th. Both offer big, clean, powerful SW groundswell with favorable winds. If you're experienced and want the best of the best, those are your windows. The glassy mornings on the 13th and 15th are also worth a paddle for a tamer session.

Rusty.

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