Aha Rivermouth Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s happening at Aha Rivermouth over the next couple of weeks.

Right off the bat, we’re in a bit of a flat spell. The first real surfable energy doesn’t show up until Sunday morning, August 2nd, and even then it’s a slow start. From now until then, we’re looking at tiny, weak waves with poor conditions, so don’t rush to wax up.

Sunday morning, August 2nd, brings the first glimmer of hope. We’ve got a small 1 ft swell from the east, but here’s the kicker – the period is a very long 16 seconds. That’s proper groundswell energy, and it’s showing up with clean conditions thanks to a light offshore wind. The combined energy is still weak (97), but for a point break or river mouth like this, that long period could produce some surprisingly fun, lined-up waves. It’s a sneaky good window for the patient surfer.

Sunday afternoon gets a bit messy with a cross-onshore wind, but the swell bumps up to 2 ft with a 17-second period and energy climbing to 226. It’s still small, but that long period will keep things interesting.

Monday the 3rd sees the swell jump to 4 ft to 4 ft from the east, with periods still hanging around 15–16 seconds. The energy is now moderate (689 to 861), but the wind goes cross-onshore and choppy, so it’s not the cleanest. Still, there’s power in the water.

Now, the standout period. Tuesday, August 4th, is the day to circle. Morning brings a solid 6 ft east swell with an 18-second period. The wind is light and onshore, but the energy is already strong at 2002. By Tuesday afternoon, the swell hits 7 ft, same long period, and the energy jumps to 3013. This is a serious groundswell. For a rivermouth setup, that long period should wrap in nicely, but it’s getting big – over 8 ft is expert territory. The wind is more onshore, so it won’t be perfect, but the raw power is there.

Wednesday, August 5th, is giant. 10 ft to 13 ft east swell with 18–19 second periods. Energy is off the charts (6104 to 11262). This is heavy, powerful surf. Only for the most experienced. Winds are strong onshore, making it a messy, challenging beast.

Thursday, August 6th, the swell peaks at 23 ft to 25 ft from the east-northeast, 19-second period. Energy is 37392 to 44233. This is a massive, dangerous swell. The wind is a near gale to severe gale, cross-onshore, and totally blown out. Honestly, this setup looks more interesting for kite surfing than paddle surfing. It’s just too big and wild for a standard board.

After that, the swell crashes down. Friday, August 7th, the wind shifts to storm force, and the swell drops to 12 ft from the north, but it’s a total mess. The rest of the second week, from August 8th to the 15th, is a long, slow decline. Swells are small (2 ft to 6 ft), periods are shorter, and the wind is mostly cross-offshore or onshore. The energy is low to moderate. There are a few clean windows, but the waves are just too small to get excited about. The best of the late run is maybe Monday, August 10th afternoon, with a 4 ft east swell and 13-second period, but the wind is moderate and cross-offshore, keeping it clean but weak.

The water temperature is sitting at 86°F, which is a touch warmer than normal for this time of year (anomaly of 2°F). That’s a nice little bonus for the skin.

Truth be told, the only real standout here is Tuesday, August 4th. That’s the day with the biggest, longest-period swell that’s still within a manageable range for strong intermediate to expert surfers. The Sunday morning, August 2nd, window is a sneaky pick for the longboard or funboard crew, thanks to the clean conditions and long period.

Overall, it’s a week of waiting, then a big pulse of energy, then a slow fade. The forecast is solid for the near-term, but the long-range stuff after August 7th is less certain. Keep an eye on Tuesday.

Rusty out.

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