Avellanas Rivermouth Surf Forecast and Surf Report

Alright, Rusty here. Let’s break down what’s happening at Avellanas Rivermouth.

The first few days are pretty grim. Sunday the 9th and Monday the 10th are small and messy – waves around 3 ft to 4 ft from the SW, but cross-onshore winds have the surface all lumpy and chopped up. Not worth paddling out for. Water temp is 86°, which is a touch warmer than usual for this time of year.

Tuesday the 11th afternoon is the first real glimmer. Swell drops to about 3 ft from the SW, but the wind swings cross-offshore and the period stretches out to a long 18 seconds – that’s proper groundswell energy. The combined energy reading of 678 is moderate, and the surf is clean. The rivermouth will love those long-period lines.

Wednesday the 12th is a mixed bag. Morning is poor with onshore wind, but the afternoon offers clean conditions again, though the swell is only 2 ft. Marginal at best.

Thursday the 13th afternoon is the standout of the first week. Swell builds to about 3 ft from the SSW, 15-second period, light cross-off wind, and combined energy of 483 – moderate, but the conditions are clean and glassy. This is your session if you want smooth, well-shaped waves.

Friday the 14th sees a jump in size – 4 ft from the SW, 18-second period, and the combined energy hits 932 in the morning and 1185 in the afternoon. That’s strong energy. But the wind is cross-onshore both times, so the surface isn’t perfect. The afternoon is only “fairly choppy,” so if you don’t mind a little bump, there’s plenty of power.

Saturday the 15th is a washout – fresh cross-onshore winds and lumpy conditions with 4 ft to 5 ft of swell. Not the day.

Sunday the 16th morning is marginal with light cross-on wind and 4 ft from the SW, 15 seconds. Possible but nothing special.

Into the second week, Monday the 17th afternoon is another clean window: 4 ft from the SW, 14 seconds, light cross-off wind, combined energy 717. Clean and rideable.

Tuesday the 18th brings a bigger pulse – 6 ft to 6 ft from the SSW, but the period drops to 8-9 seconds, so it’s shorter-period windswell. The afternoon has offshore wind and clean conditions with 6 ft – that’s expert territory at that size. Only for the experienced crew.

Thursday the 20th is a glassy, clean day with 4 ft to 4 ft from the S, 10 seconds. Light winds, nearly flat conditions – a fun, mellow session.

Saturday the 22nd afternoon looks promising again: just 2 ft from the SW, but a very long 21-second period, cross-off wind, and clean. Combined energy is 575 – moderate, but those long-period waves will wrap nicely into the rivermouth.

Best bets: Thursday the 13th afternoon and Monday the 17th afternoon for clean, quality waves. Friday the 14th has the biggest swell but with lumpy wind, and Tuesday the 18th afternoon is for experts only.

Stay salty,
Rusty

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