Avellanas Rivermouth Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s take a look at what’s on the menu for the next couple of weeks.

We’re looking at a solid run of small to moderate surf at Avellanas Rivermouth, with a few standout windows that are going to be worth the wait. The water is sitting at 86°, a touch warmer than normal for this time of year, so you can leave the full wetsuit at home.

The first real bright spot comes on Monday afternoon, August 3rd. We’ve got a 3ft southwest swell, and with a 13-second period, there’s some decent groundswell energy in the water (323). The wind is negligible and cross-off, so expect clean, glassy lines. It’s not huge, but the quality is there.

Tuesday morning, August 4th, is a bit of a letdown with a light cross-on breeze messing with the shape, but the real action kicks off on Friday afternoon, August 7th. The swell picks up to 2ft from the southwest, but the period jumps to 17 seconds, and the combined energy hits 559. That’s a long-period groundswell, and with a cross-off wind, the Rivermouth will be offering up some long, clean walls. This is a good one.

Saturday afternoon, August 8th, is another standout. The swell is 4ft from the southwest, the period is a solid 15 seconds, and the energy is up to 561. The wind goes glassy, so it’s going to be a picture-perfect afternoon. The Rivermouth is a sandbar, so it’s fairly consistent, but crowds are possible – get down there early.

Looking further ahead, Tuesday afternoon, August 11th, is a real gem. The swell is 3ft, but the period stretches out to 18 seconds, and the combined energy is a powerful 825. With a light cross-off breeze, this is a very long-period groundswell that will wrap beautifully into the river mouth. The surf will be clean and well-shaped.

The biggest swell of the period arrives on Saturday afternoon, August 15th, with 4ft from the southwest and a 16-second period. The energy is pumping at 1078, and the wind is a clean cross-off. This is excellent surf, but at 4ft, it’s still manageable for intermediates. The crowd factor will be there, but the quality makes it worth it.

Then, on the very last day of the window, Tuesday afternoon, August 18th, we get an offshore breeze from the west-southwest with a 3ft, 14-second swell. The energy is 571, and it will be clean and peeling. A nice way to finish the run.

The pick of the whole period? That Tuesday afternoon, August 11th. The 18-second groundswell and cross-off wind at Avellanas Rivermouth is going to be a special session. The Saturday afternoon, August 15th, is a close second with that 4ft swell and clean conditions.

Rusty, out.

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