Aha Rivermouth Surf Forecast and Surf Report

Hey folks, Rusty here. Let me break down what’s happening at Aha Rivermouth over the next couple of weeks. I’m not gonna sugarcoat it – this forecast is pretty grim for the most part.

There’s a long dry spell with no real surf to speak of for over a week. The first decent chance doesn’t show up until well into the second week. So if you’re keen, you’re gonna need some patience.

Starting off Thursday the 3rd of September, we get a solid 10-foot east swell (3.0m) with a 10-second period, but the wind is howling onshore and conditions are awful. That swell’s just too much for this break – the energy reading is 1820 (moderate-strong). Friday the 4th morning cleans up with a crisp offshore breeze from the southwest, but the swell drops to barely 3 feet (1.0m) with a short 9-second interval. It’s marginal but it’s your cleanest wave for a while.

After that, it’s a whole lot of poor surf and cross-onshore or onshore winds. Most of the first week is a total loss. The water temp is a warm 83°F (28°C), which is about average for this time of year, but the wind and wave quality are rough. Even when the swell hits around 5 feet (1.6m) on Monday the 7th, it’s short period (7 seconds) and choppy. If you’ve got a kite, this might be more your scene – the beach/jetty setup with those strong onshore winds and moderate energy (268 to 1820 range) is better suited to riding with a kite than a paddle board.

Finally, a glimmer late in the second week. Tuesday the 15th is your standout. Morning brings a 5-foot east swell (1.4m) with a 10-second period and a clean cross-offshore breeze from the south. Energy is 450 (moderate) – it’s not massive but it’s the best shape we’ll see. Afternoon has a 6-foot east swell (1.7m) though the wind shifts cross-shore and gets lumpy. Still, this is your window. Keep in mind Aha Rivermouth is fairly consistent but can get busy sometimes, and this is a long-range call so it’s promising but not certain.

Wednesday the 16th brings a 5-foot east swell (1.5m) but the wind cranks to 45 km/h (28 mph) cross-shore – nasty. After that, Thursday the 17th and Friday the 18th have tiny 2- to 3-foot swells (0.5-0.9m) with clean offshore winds, but they’re small and marginal. Friday 18th morning is just about surfable with a 2-foot swell (0.5m) and a 12-second period from the east-northeast – clean but tiny.

Bottom line: Tuesday the 15th is your best shot. The rest is either blown out, too big, or too small. Given how few consistent good days there are, it’s one of those runs that feels normal for the area when the surf gods are quiet. Things can change, but right now it’s looking sparse. Stay tuned.

This is Rusty, out.

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