Sponge bay Surf Forecast and Surf Report

Alright crew, grab your wetties, let’s see what Sponge Bay has cookin’ over the next couple of weeks. Rusty here.

First up, the outlook is a bit of a slow burner, with very little to write home about for the first week. The water temp is sitting about average for this time of year, so no shock there, but the lack of decent swell and clean wind makes for a frustrating start.

We kick off on Wednesday, 9th September, with small, weak SE swell. Waves are around 4 ft but the period is a short 8 seconds, so it’s pretty gutless. It’s clean enough in the morning with a light cross-off breeze, but the energy is just moderate (212). Honestly, it’s surfable but very ordinary. The afternoon gets worse with a stronger NE wind chopping things up.

Thursday, 10th September, the swell drops off a cliff. Thursday morning is a write-off with only 2 ft of weak, short-period junk, and the wind is up. The afternoon goes glassy but the swell is barely 2 ft – you’d be chasing ripples, mate. Not worth paddling out.

Friday, 11th September, sees a weird spike in energy (216 and 228) from a couple of different swells, but the morning is ruined by onshore wind and rain. The afternoon goes glassy with a tiny 1 ft swell but a long 18-second period – that’s proper groundswell, but so small you’ll be bobbing around. Not surfable.

The rest of the first week and into the second is a drought. Saturday and Sunday are a complete mess with strong cross-onshore winds and lumpy, choppy seas. The swell jumps to 6 ft on Sunday morning but with a 25 km/h cross-shore wind, it’s just a bumpy mess. Definitely look more like a kite day than a paddle day.

The standout by far is Monday, 14th September. Morning brings a clean 5 ft SE swell with a lovely 13-second period, combined energy is solid (653) and the wind is light offshore from the north. This is the best window in the whole forecast – clean lines, decent push, and the swell is manageable for most. This is the one to circle.

Tuesday, 15th September, is a step down. Swell drops to 3 ft and the energy fades (227). It’s clean but very weak.

The other big one to watch is Tuesday, 22nd September. The morning glass-off with an 12 ft S swell (10 sec period) and massive energy (3643). But Rusty has to be honest here – that’s way too big for Sponge Bay. The file says it’s predicted to be too big for this break. Only absolute experts, if anyone, should even consider it. It’s a beast.

After that, Wednesday, 23rd September, cleans up nicely with a 4 ft SSE swell, good period (11 sec), and light offshore wind. That’s a nice, solid session for the average surfer.

So, to wrap it up: if you’re keen, save your energy for Monday, 14th September, for the best all-round conditions. The 22nd is a monster, but it’s a dangerous one. The rest of the time? A lot of flat spells and onshore junk. It’s a lean run, but forecasts can change.

Rusty, signing off.

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