Flatrock Surf Forecast and Surf Report

Alright, Rusty here. Let’s break it down for the imperial crew.

The swell window is open, and we’ve got a nice run of groundswell heading our way, but it’s not all sunshine. The first few days are worth getting excited about, especially if you’re an experienced surfer. After that, it gets tricky with wind and size.

Flatrock is the only show in town, and it’s a reef setup that demands respect. The water temp is sitting at 59°F, which is pretty much dead average for this time of year, so nothing unusual there.

We kick off this Sunday morning, August 30th. The conditions are a treat: a clean 3-foot SSW swell with a 20-second period rolling in. That’s a very long period groundswell – proper energy. The wind is a gentle offshore from the east, making for clean, glassy faces. The combined swell energy is reading 1322, which is moderate but with that period, it’ll feel punchy. This is a solid session for the advanced crew. The afternoon sees the swell jump to 7 feet, but the wind goes cross-offshore, keeping it rideable.

Monday morning, August 31st is the standout. This is the best on offer. You’ve got a clean 8-foot SW swell with an 18-second period – that’s a powerful, long-period groundswell with a combined energy of 7405, which is strong. The wind is a cross-offshore breeze from the NNE. This is big, powerful, and clean. It’s expert territory at that size. The afternoon gets a little cross-on, but the morning window is the one.

Tuesday, September 1st is a write-off. Strong cross-shore winds and onshore winds blow through the whole day, making a mess of the 5-foot to 6-foot swell. Save your energy.

Wednesday, September 2nd through to Thursday, September 3rd are all onshore, with onshore winds and solid 8-foot to 10-foot SW swell. The raw power is there (energy readings between 2580 and 3967), but the wind is against us. It’s a messy, blown-out affair. Not worth paddling out.

Friday, September 4th offers a small glimmer. The morning is messy with a cross-shore wind and a big 12-foot SW swell (energy 5650), but the afternoon cleans up. The wind goes cross-offshore, the swell drops to 10 feet, and it’s clean. That’s a big, powerful wave for experts only, but it’s rideable. The afternoon session is the go.

Saturday, September 5th and Sunday, September 6th are a write-off. Strong onshore winds from the southwest ruin the 8-foot to 10-foot swell. It’s lumpy, cross-on, and messy.

Monday, September 7th and Tuesday, September 8th stay poor. The wind stays cross-on, and even though the swell on Tuesday afternoon hits 12 feet from the SSW (energy 7712 – very strong), it’s choppy and cross-on. Not for the faint of heart.

Wednesday, September 9th morning is a real highlight. A clean 10-foot SW swell with a 16-second period and a light offshore wind from the ESE. The energy is 4128. It’s clean, powerful, and for experts only. The afternoon gets a cross-shore wind, so the morning is the window.

Thursday, September 10th morning is clean again. A 7-foot SSW swell with a 15-second period and a cross-offshore NNE breeze. It’s clean, solid, and good for experienced surfers. The afternoon gets a little cross-on.

Friday, September 11th morning is another big one. A 10-foot SW swell with a 19-second period – that’s very long period, powerful stuff. The energy is 7003. The wind is cross-offshore from the north. It’s clean and massive. This is a serious session for experts.

Saturday, September 12th and Sunday, September 13th drop off in quality. The wind is cross-shore and cross-on, making the 6-foot to 8-foot swell messy.

Monday, September 14th closes the window with strong onshore winds and a near gale, making the 6-foot to 6-foot swell a complete mess.

The best bets are Monday morning, August 31st and Friday morning, September 11th. Both are big, clean, and powerful swells for experts. The Wednesday morning, September 9th session is also a cracker.

Stay safe out there.

Rusty.

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