Avellanas Rivermouth Surf Forecast and Surf Report

Alright, surfers, Rusty here. Let’s talk about the next couple of weeks at Avellanas Rivermouth.

We've got a run of small, clean windows bookending a bigger pulse that’s gonna punch through. The water is sitting at a balmy 86°, which is a touch warmer than normal for this time of year, so you can leave the 4/3 at home.

Right off the bat, Monday the 24th is a write-off with that onshore ENE breeze. But by Monday afternoon, that wind swings SW and goes cross-offshore, making the 2ft SW groundswell (17s period) look way cleaner. The energy is moderate (476). It’s surfable, but nothing to write home about.

Tuesday the 25th is a mess – onshore wind and a building storm threat. Actually, most of the week is a bit of a tease. Wednesday the 26th afternoon goes glassy with a 2ft swell, but it’s tiny. Thursday the 27th afternoon is your first real standout in this opening week. Glassy conditions again, with that 2ft SW swell (18s period) making for super clean, though small, lined-up waves. Energy is moderate (332).

Now, hold onto your leashes. The real action starts late on Saturday the 29th. The swell jumps to a solid 5ft from the SW (16s period) with cross-offshore wind. That’s a moderate-to-strong energy event (1428). This is excellent for experienced crew, but at over 5ft, it’s pushing it for beginners. Sunday the 30th afternoon keeps the clean surf going with 5ft waves. The first week closes out with that pattern.

Then we hit a bit of a lull through the start of the second week. Monday the 31st and Tuesday the 1st of September are clean but small again. The next big standout is brewing for Friday, September 4th. That afternoon sees a 5ft SW swell (17s period) with clean offshore wind. That is excellent for experienced surfers, and the energy is very strong (1508). Saturday the 5th afternoon delivers again with 5ft and offshore wind.

The final best call of the window? Monday, September 7th. It’s an early glassy morning with a 3ft SW swell, but here’s the kicker – that period is a massive 21 seconds. That is very long-period groundswell, generating strong energy (1162). This will break best at this rivermouth, giving you some proper, well-shaped lines with long waits between sets. Tuesday the 8th is also excellent with 4ft and 19s period.

The current is gonna be an issue on the bigger, longer-period days, but the quality is undeniable. The consistent breaks here mean a flat spell doesn’t tend to last, and the forecasts look promising.

Rusty.

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