Avellanas Rivermouth Surf Forecast and Surf Report

G’day, Rusty here. Looks like we’ve got a bit of a mixed bag coming up for Avellanas Rivermouth over the next couple of weeks. The first few days show some solid energy, but you’ll need to pick your moments carefully. The water’s sitting at 86°F, which is a touch warmer than normal for this time of year – not a bad thing for a long session.

The standout period is this Saturday, September 5th. The morning kicks off with a 6ft SW groundswell, period a long 16 seconds, and the combined energy is pumping at 1459 (strong). The wind’s a bit cross-on from the ENE at 15 km/h, so it’s a little choppy, but by afternoon the wind swings to a cross-off SW at 15 km/h, cleaning things right up. The swell drops slightly to 5ft, but the energy is still strong at 1198, and conditions are clean. That afternoon window is the best on offer – a solid, powerful SW groundswell, glassy-ish, and perfect for experienced surfers.

Sunday the 6th holds a bit of that swell too, with 5ft SW in the morning and 4ft in the afternoon, both with a period of 14 seconds. The morning has onshore wind, but the afternoon again goes cross-off SW, clean, and the energy is moderate (880 and 818). A good option if you missed Saturday.

Monday the 7th is a write-off – strong 30 km/h SSE wind in the morning, lumpy, and the swell is down to 4ft (energy 781). Afternoon’s a bit better but still messy. Tuesday the 8th sees a drop in size to 2ft, but the morning is glassy with a 5 km/h E wind, and the swell period is a very long 18 seconds. The energy is still moderate (650), so it’ll be clean but small – better for logging or a longboard.

From Wednesday the 9th through to the middle of the week, the swell stays around 2ft to 4ft, with inconsistent energy. The afternoons often have a cross-off or offshore wind, so there are clean windows, but the size is small. For example, Tuesday the 15th afternoon has a 3ft SW groundswell (17-second period), a light WSW cross-off at 5 km/h, and clean conditions – a nice little session if you’re not picky about power.

The second week gets a bit of a pulse again. Sunday the 20th looks promising with a 3ft SW groundswell, a very long 19-second period, and combined energy of 563 (moderate). The wind is light and cross-off from the NW in the morning, and WNW in the afternoon, keeping it clean. That’s a longer-range call, so less certain, but if it holds, the rivermouth will be lining up nicely.

Crowds at Avellanas are often a factor, so expect company, especially on the weekends.

Overall, the clear winner is Saturday afternoon, September 5th. If you can get out there, you’ll be laughing.

Rusty.

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