Shark Island (Cronulla) Surf Forecast and Surf Report

Alright, Rusty here, looking at the surf for the next couple of weeks. It's a slow start, so don't rush down this afternoon. The good stuff starts building later in the week, with a couple of standout windows for the experienced crew.

This first stretch is a write-off. Sunday afternoon (September 6th) is a no-go with strong southerly winds at 18.6 mph making a mess of things. Monday and Tuesday stay pretty average, with small, short-period swells and onshore or cross-shore breezes. You're looking at a few days of flat to poor conditions to kick things off.

Now, things get interesting from Thursday the 10th. We've got a solid 8.2 ft south swell building, and while the morning is marginal, Thursday afternoon looks promising. The wind is a moderate cross-off from the south at 12.4 mph, keeping the surface clean, and the swell period stretches to 10 seconds with strong wave energy. That's a powerful setup for the advanced crew at Shark Island (Cronulla). The swell is getting up there, so this one is for the experts only. This spot is a reef break, fairly exposed to the south swell, and with crowds sometimes, it’s worth an early paddle.

Friday the 11th morning is the real standout. The wind swings light offshore from the southwest at 6.2 mph, grooming a solid 6.6 ft south swell with a 10-second period. The conditions are expected to be very good. This is the pick of the week for the experienced surfers – clean, powerful lines on the reef.

After that, Saturday the 12th morning offers a glassy session with a lighter 5.2 ft south swell and a longer 11-second period. It’s a good option for a relaxed paddle if Friday doesn’t work out. The water temp is about average for this time of year at 64.2°F.

The following week has some pulses, but nothing that matches that Friday peak. There’s a bigger, punchy 7.2 ft south swell on Tuesday the 15th morning, but it's short-period (8 seconds) – a lot of power but not the best shape. Then on Wednesday the 16th morning, we get a glassy 4.9 ft south groundswell with an 11-second period, making for a clean but smaller session. The long-range window on Thursday the 17th morning shows a glassy 2.3 ft SSE swell with a very long 16-second period – that’s a groundswell, but tiny. That long period might make it break too straight for the beachies, but on the reef at Shark Island, it could offer some clean, walled-up lines if it fills in. Still, it’s a long way out, so keep an eye on it.

All in all, the best bet is Friday morning the 11th for a proper session. Thursday afternoon the 10th is the next best. The rest is a mix of small, windy, or marginal conditions.

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