Sponge bay Surf Forecast and Surf Report

G’day, Rusty here. Let’s talk about what’s on the menu at Sponge Bay. It’s a beach and reef setup, pretty exposed to the south and southeast, so it catches a bit of energy, but we’ve got a long wait ahead before anything really worth paddling out for shows up.

Right now and through the first few days, it’s a write-off. Wednesday the 19th and Thursday the 20th of August are a total mess—big, raw swell around 12ft dropping to 7ft, but with screaming onshore and cross-onshore winds, the combined energy is huge (2681–5204), and the surf is just ugly. Nothing for us there.

Friday the 21st is where things finally turn. We get a clean, lined-up 3ft to 4ft SSE groundswell, with a lovely 16-second period. That’s a long-period pulse, so it’ll have proper shape and power for its size, and with light cross-off winds, the conditions are looking very good. The combined energy is moderate (623–728). This is the standout of the whole run. Sponge Bay will be offering clean, fun waves for anyone from beginners to intermediate surfers. It’s not huge, but it’s quality.

After Friday, the weekend drops off quickly. Saturday the 22nd and Sunday the 23rd have smaller, weaker swell (1ft to 3ft) and energy levels falling fast (73–200). The wind stays clean, but there’s just not enough push to get excited about. Monday the 24th through Thursday the 27th are flat to tiny—mostly 1ft to 3ft, with very low energy (56–210). A few sessions are “surfable but very ordinary,” so you’d be scratching for scraps.

Friday the 28th brings another small pulse of 3ft SSE groundswell with a 16-second period, and this time the wind is offshore. That’s a clean, glassy morning. The combined energy is moderate (283), and while it’s not a standout like the 21st, it’s a decent option for a gentle, clean wave. Crowds are possible here sometimes, so keep that in mind if you want a quiet paddle.

Saturday the 29th and Sunday the 30th are small and weak again—1ft to 2ft, with energy under 120. A glassy afternoon on the 29th is nice but barely surfable. Then we hit a gap of a few days with very poor conditions and onshore winds until Monday the 31st of August, when a 5ft SSE groundswell rolls in with 15-second period, but it’s onshore and choppy. Not worth it.

Into the first week of September, there’s a flicker of hope on Thursday the 3rd: 4ft SSE groundswell at 12 seconds, with light offshore wind and clean conditions. That’s a moderate-energy setup (510) and could be fun for intermediate surfers, but it’s a long-range call—promising but less certain.

Overall, the clear standout is Friday the 21st of August. Get out there for that. The rest is either too small, too windy, or too far out to bank on. Keep an eye on the Thursday the 3rd of September session as a maybe.

Rusty.

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