Thirroul Surf Forecast and Surf Report

Alright, Rusty here. Let’s have a look at what’s on the cards for Thirroul.

First up, the water temp is sitting at 64°, which is pretty much bang on average for this time of year, so no surprises there.

The forecast kicks off on Monday the 7th of September with a bit of hope. Monday morning you’ll find a 5ft swell from the SSE, period of 8 seconds, and a light N breeze blowing cross-off. That’s clean, and the combined energy is moderate (311). It’s not massive, but it’s the best of the early window. The afternoon turns ugly though, with the wind swinging SSE and picking up to 12 mph, making it choppy and cross-on.

Tuesday the 8th sees a bump in size to 7ft from the SSE, but that S wind at 12 mph is cross-shore and messy. The combined energy jumps to 646 (moderate), but the conditions are marginal at best. Not your day.

Wednesday the 9th is a write-off. A 10ft S swell with 25 mph S winds and combined energy at 1215 (strong) sounds intimidating, but it’s a messy, howling cross-shore. That’s kite-surfing territory, not paddle surfing.

Thursday the 10th still has size at 8ft from the S, period 10 seconds, and a solid 1314 combined energy (strong). The wind is cross-shore in the morning but cross-on in the arvo. The morning is marginal, but this is big, powerful swell. For experts only. Keep your wits about you.

Friday the 11th has more 8ft S swell, but the wind stays cross-on. It’s not clean, and the energy is through the roof at 1766 (very strong). Honestly, it’s a lot of power with poor shape.

Now, the standout pops up on Saturday the 12th of September. The morning is the pick of the whole forecast. You’ve got a 5ft SSE swell, but the period is a long 11 seconds – that’s proper groundswell. The wind is from the NNE at just 3 mph, almost glassy, with a light cross-shore. The combined energy is 504 (moderate). It’s clean, it’s got some punch, and it’s the closest thing to a gem in this run. Thirroul is a beach and reef setup, and with that long period, it’ll handle the points and reefs nicely. Crowds are possible though, so get in early.

From Sunday the 13th onward, it drops off fast. Small, weak, and mostly messy. There’s a brief clean window on Monday the 14th morning with a 2ft S swell and light N cross-off, but it’s tiny. Then from the 15th to the 19th, it’s a whole lot of nothing – poor conditions, small swell, or onshore winds. There’s a gap of about 5 days with no real quality.

Then, on Sunday the 20th of September, a glimmer: a 4ft S swell, period 10 seconds, with a light N breeze (3 mph) blowing cross-off. Clean, and combined energy of 290 (weak). It’s surfable but small. The afternoon gets ruined by a NE wind, so make it a dawn mission.

Fast forward to Tuesday the 22nd of September. The morning offers a 8ft S swell, period 9 seconds, with a light NE breeze at 6 mph, cross-shore. Combined energy is 1232 (strong). That’s a big, powerful swell, but it’s still a bit raw. Experts only again. The afternoon stays windy.

So, the real standout is Saturday the 12th of September morning. That’s the one to circle. The long period, the clean conditions, and the moderate energy make it the best of a patchy 16 days. Tuesday the 22nd morning is a promising but less certain long-range call for the brave.

Stay sharp, and don’t sleep on that Saturday.

Rusty.

Read more