Aha Rivermouth Surf Forecast and Surf Report

G'day, Rusty here. Looking at the Aha Rivermouth stretch, and I’ve gotta be straight with you: the next couple of weeks are a real mixed bag, and mostly not the good kind. We’ve got a lot of onshore junk and building swell that’s just too big for this spot to handle properly. The water’s sitting at 83°F, which is about normal for this time of year, so at least you won’t need a thick wetsuit.

The first few days, starting Friday the 28th through Sunday the 30th, are basically a write-off. We’re looking at lumpy cross-shore chop with fresh breezes, and the swell’s only around 5ft to 6ft but it’s all short-period windswell, around 7 seconds. It’s just messy and uninviting. The energy is weak to moderate at best, with readings like 304 to 429 in the morning. You’d be fighting it more than riding it.

Now, Monday the 31st is when things get serious, but not in a good way. The swell jumps up to 10ft, with a strong onshore breeze at 28 mph. The combined energy is pumping hard – we're talking 1358 – but it’s a blown-out mess. This is not paddle surfing, this is kite-surfing territory if anything.

Then we get a tease. On Tuesday, September 1st, the wind swings cross-offshore and the surf is clean, but that swell is still a solid 10ft. For Aha Rivermouth, that’s just too much juice. It’s a beach/jetty setup, and 10ft is going to be a washing machine. Unless you’re a top-tier expert on a big-wave gun, I’d give it a miss. The energy is strong at 1173, but it’s just not the right fit.

The middle of the week, from Wednesday the 2nd to Friday the 4th, the swell drops to a more manageable 6ft to 8ft. The winds are cross-offshore, so it’s clean, but the forecast notes marginal conditions and questionable tides. The energy is moderate, around 598 to 1233. It might be rideable for the intermediate crew, but it’s not going to be anything to write home about.

Now, Saturday the 5th of September rolls around and we get another big pulse. The swell is back up to 10ft, but the wind is cross-onshore in the morning, making it a total mess. In the afternoon, the wind eases a bit, and the energy is huge – 2038 – but again, 10ft at this river mouth is just too much. It’s a pass for me.

After that, it’s a downward spiral. From Sunday the 6th onward, the swell fades away. We’re looking at dropping wave heights, and the winds are mostly onshore or cross-onshore. The energy drops off a cliff, down to as low as 34 by Monday the 7th. There’s some cleaner surf on the 8th and 9th, but it’s only 3ft to 6ft of weak, short-period swell. It’s just not worth the paddle.

So, the bottom line is this: there is no standout day in this entire 16-day window for Aha Rivermouth. It’s either too small and messy, or too big and blown out. If you’re desperate, maybe the clean 6ft to 7ft days around the 2nd, 3rd, and 4th of September will give you something, but go in with low expectations. This spot just doesn't seem to be firing at all. Keep an eye on it, because forecasts change, but right now, I'd be looking elsewhere.

Rusty, signing off.

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