Thirroul Surf Forecast and Surf Report

G'day, it's Rusty.

Alright mate, let's have a look at the forecast for the next couple of weeks. It's a bit of a mixed bag, with a lot of marginal days to wade through before we get a couple of genuine standouts. The water temp is sitting right on average for this time of year at 64°F, nothing unusual there.

The first real chance to get wet comes in on Thursday the 10th of September, but honestly, it's a tough one. Thirroul is a beach and reef setup, exposed to the south-east, and we've got a 7ft S swell rolling in at 9 seconds. The energy is moderate (825), but that SSE wind is blowing cross-on at 12 mph, making it choppy and poor. Not worth paddling out for.

Friday the 11th is much the same story. The swell drops to 5ft on Friday morning, but the wind is still cross-on from the SSE, though lighter at 3 mph. The wave energy is moderate (432), but it's still a marginal call. The afternoon sees onshore wind and a 5ft S swell (358). It's just not clean.

Saturday the 12th and Sunday the 13th are a write-off. The swell is small and weak, under 3ft, with cross-shore winds and energy dropping from 334 down to 147. Poor conditions across the board.

Monday the 14th is a tease. The morning is flat with a 2ft S swell, but we get a clean, light cross-offshore breeze from the NNW. The energy is weak (121). It's surfable, but very ordinary. The afternoon goes back to poor.

Tuesday the 15th is a horrible day. Crazy short period swell of 4 seconds in the morning, then a jump to 5ft in the afternoon with fresh cross-onshore winds. It's choppy and messy.

Now, Wednesday the 16th of September is where things get interesting. The morning brings a solid 7ft S swell with a 9-second period. The combined energy jumps to a strong 1354. The wind is light and cross-on from the SSE, so it's not perfect, but there's a lot of water moving. This is a big swell for the area, and at 7ft, it's pushing into expert territory.

But the real standout, the one I'd circle on the calendar, is Saturday the 19th of September. Thirroul is going to be firing. We've got a 8ft S swell with a 10-second period, and the energy is massive at 1320. The wind is a clean offshore from the WNW at 9 mph. This is an excellent setup for experienced surfers. The swell direction (S) matches the optimum direction for the break (SE), and the offshore wind will groom it into perfection. The period is solid, giving it proper shape and power. It's a big day, so it's only for the crew who know what they're doing, but it's the best on offer by a long shot. Crowds are possible here, so get in early.

Sunday the 20th of September is still solid, with a 7ft SSE swell (1100 energy) in the morning, but the wind shifts to a cross-shore NNE, putting a bit of chop on the face. Still a good wave, but Saturday is cleaner.

The following week fades out. Monday the 21st has a 6ft SE swell (600 energy) with light cross-onshore wind, which is marginal. Tuesday the 22nd is small and poor. Wednesday the 23rd is a clean but tiny 3ft NE swell (89 energy) – not enough to ride. Thursday the 24th of September is a late highlight: a 6ft NE swell with clean offshore WNW wind (456 energy). It's a fun size, nice and clean, but the swell direction is coming from the NE, which is not the optimum for Thirroul. Still, it's a good surf. Friday the 25th is back to poor with strong onshore winds.

To sum it up: the period is a slow burn, but Saturday the 19th of September is the clear winner – big, powerful, offshore, and excellent for experts. The 24th is a decent backup. Don't bother with the first week.

Rusty.

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