Thirroul Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s on the menu for Thirroul over the next couple of weeks.

It’s a pretty quiet start, to be honest. We’ve got a few days of clean-ish but weak surf coming up, but nothing that’ll get the heart racing. The real standout sits way out at the end of the forecast window, so we’ve got some patience to exercise.

The first proper session worth paddling out for hits on Wednesday morning, August 12th. We’re looking at a 3ft swell from the south, with a period of 9 seconds. The wind is light offshore from the west at 9 mph, so the surface will be clean. The water is sitting at 64°, which is pretty normal for this time of year. Combined wave energy is moderate (218). It’s surfable, but it’s nothing to write home about.

Thursday morning, August 13th, offers similar 3ft south swell, but the wind is cross-offshore from the WSW at 6 mph, so it’s still clean. The energy is a bit lower (168). Again, it’s okay, but very ordinary.

Friday morning, August 14th, is worth a mention. The swell is 3ft from the south, period 8 seconds, and the wind goes glassy – dead calm. That’s a major positive for clean waves. The energy is moderate (194). It’s a small day, but if you’re a local who loves a grovel, this is your window.

Now, from Saturday the 15th right through to the morning of Thursday the 20th, it’s a write-off. We’ve got onshore winds, wind chop, and mixed-up swell directions. The energy drops off a cliff, and the conditions are just poor. There’s a gap of about 5 days where you’re better off doing something else.

Things start to look a little better again on Friday morning, August 21st. A 3ft swell from the ENE, period 8 seconds, with offshore wind from the west at 6 mph. Energy is low (112) but the conditions are clean. It’s small, but it’s tidy.

The best of the whole forecast is on Sunday, August 23rd. Both morning and afternoon are good. The swell is 3ft from the ENE, but the period stretches to 11 seconds, giving it a bit more push. The wind is offshore from the WNW for the morning (6 mph) and from the west for the afternoon (9 mph). Combined wave energy is solid (226 morning, 225 afternoon). This is a clean, fun, small-wave day. The period is long enough that at a beach-and-reef setup like Thirroul, the waves should have a nice shape. It’s a standout for the consistency and quality of conditions.

Monday morning, August 24th, is also glassy with a 3ft ENE swell (10-second period, energy 199), but the afternoon gets chopped up by a NE wind. Tuesday the 25th sees offshore winds again, but the swell is smaller and the energy is fading.

The big one – the one for the experienced crew – is on Thursday, August 27th. The morning session is a flat-out highlight. Swell is 8ft from the south, period 9 seconds, and the wind is glassy. The combined wave energy is massive (1177). This is a powerful south swell, and with it being glassy? That’s a rare combination. The swell is over 8ft, so this is for experts only. The afternoon jumps to 10ft from the same direction, but the wind turns onshore from the ESE, which might make it a bit of a beast. But that Thursday morning is the one to circle on the calendar – just don’t send the beginners out.

So, to wrap it up: wait through the junk this week, enjoy the clean but small days on Friday the 21st and the weekend of the 23rd, and then get ready for a serious session on the morning of Thursday, August 27th.

Rusty.

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