Moruya Rivermouth Surf Forecast and Surf Report

G’day, Rusty here. Let’s talk about what’s shaping up on the South Coast, with Moruya Rivermouth as our main focus.

First up, the water temp is about average for this time of year, nothing wild there.

Right now, into Thursday the 10th of September, we’ve got a southerly swell running at 7 ft with a 9-second period. That’s a fair bit of energy – combined swell energy is sitting at 1058 (moderate to strong). Morning wind is a cross-shore southerly at 9 mph, so there’s a bit of cross-chop on it. It’s not a total write-off, but the quality is marginal, so I wouldn’t call it a standout. The rivermouth setup can handle that swell direction (SE is the optimum), but the wind isn’t doing us any favours. Afternoon sees the wind shift to a light cross-onshore from the ESE at 6 mph, still not ideal. This is better for a keen beginner looking for a push, but the conditions are average.

Friday the 11th drops right off – 4 ft in the morning and then down to 3 ft by the afternoon, both with a cross-onshore wind and poor surf quality. Saturday and Sunday follow the same sad story: tiny swell under 3 ft, onshore breezes, and combined energy readings as low as 107. That’s weak wave energy. Honestly, this is a flat spell for the weekend. There’s a gap of several days with no real recommendations from Friday through to Monday the 14th.

Monday the 14th afternoon brings a glimmer of hope: a 6 ft NE windswell (6-second period) with a cross-offshore NW wind at 12 mph. The conditions are clean, but the period is short and the energy is moderate at 441. It’s rideable but not special.

Now, keep your eye on Saturday the 19th of September. We’ve got a solid 8 ft south swell rolling in with a 12-second period. That’s a groundswell, and the combined energy is a punchy 1730 – that’s strong wave energy. Morning wind is a light cross-onshore from the NE at 6 mph, so there’ll be some small bumps on the face, but the swell size and direction (S) are a good match for Moruya Rivermouth’s optimum SE swell. It’s a bit on the bigger side – over 6 ft – so this one is for experienced surfers only. The afternoon cleans up with a cross-offshore NW breeze, giving you clean conditions. This is the standout of the run: a proper pulse of long-period south swell, clean in the arvo. Crowds are sometimes an issue here, but with this much swell, the pack might thin out.

The final highlight is Wednesday the 23rd of September, especially the afternoon. Swell settles to 8 ft from the SSE with an 8-second period – moderate energy at 814. The wind goes cross-offshore from the NNW at 9 mph, and conditions are clean. Expect very good surf conditions. That’s a big, powerful wave, again only for experts. The shorter period means it won’t have the same draw as the 12-second swell on the 19th, but it’s a solid option.

Thursday the 24th sees a 6 ft southerly swell (11-second period, energy 1050) with a light cross-shore wind. Not as clean, but still a decent pulse. Friday the 25th rounds it out with a clean cross-offshore morning and 4 ft swell.

So, the two true standouts: Saturday the 19th September afternoon – that clean 8 ft south groundswell with cross-offshore wind – and Wednesday the 23rd September afternoon – the 8 ft SSE swell with clean conditions. Both are expert-only territory. For the rest, it’s mostly small or onshore until the second week brings those bigger pulses.

Stay safe out there.

Rusty.

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