Viana do Castelo Surf Forecast and Surf Report

Alright folks, it’s Rusty here, and I’ve been staring at the charts for our little slice of the coast around Viana do Castelo. Gotta be straight with you – it’s a bit of a slow start for the first few days, but patience is going to pay off big time towards the end of the month and into September.

We’ve got a dry spell for the first few days here. Tuesday the 25th and Wednesday the 26th are pretty much a write-off. The swell is small and weak, with combined energy barely getting out of double digits (89 to 200), and the wind’s a mess – onshore or cross-onshore. The water is sitting at 63°, which is about two and a half degrees colder than normal for this time of year, so you’ll want a thicker suit.

Thursday the 27th isn’t much better. The swell picks up a bit to 4ft to 5ft from the WSW, but the period is short and the wind is still a light cross-onshore. The energy is getting a bit more moderate (286 to 337), but conditions are still poor.

Now, hold onto your board. Friday morning, the 28th, things change. We’ve got a clean 7ft swell from the WNW with a decent 10-second period and glassy conditions – the energy is strong at 952. This is getting interesting, but honestly, that size is pushing it for this break. It might be too big for beginners, and even for the more experienced, it’ll be a hefty one at the river mouth. The tide and wind look favorable, but the sheer size will be a handful.

Saturday morning, the 29th, cleans right up. Glassy conditions again, with a fun-sized 4ft swell from the NW (216 energy). This is a real standout – clean, manageable, and the river mouth should have some nice lines. The crowd factor here is listed as ‘often’, so expect some company in the water.

Sunday the 30th and Monday the 31st are a mixed bag. Sunday morning we’ve got light cross-onshore winds and a small 4ft swell, but it’s not really doing it for us. Monday morning looks cleaner with a cross-offshore breeze and a 5ft NW swell (319 energy), which is surfable but still just marginal. By Monday afternoon the wind is howling 19 mph from the NNW – clean, but strong.

Tuesday, the 1st of September, we get another clean morning with 5ft NW swell (379 energy). A decent option. But the real gem is coming.

Wednesday morning, the 2nd of September, is the standout of the whole outlook. We’re looking at a 6ft groundswell from the NW with a very long 11-second period. The energy is pumping at 673, and the wind is glassy. This is proper stuff – long period swells like this can get a bit walled at a river mouth, but the quality should be excellent for the crew that can handle it. The afternoon gets a bit messier with a light cross-shore, but the morning is the pick.

From the 3rd through the 5th of September, we have some clean but smaller mornings, with swells dropping to 5ft and even 2ft by the 5th. The energy fades. It’s surfable but not worth writing home about.

Look ahead to Sunday the 6th of September – another good option. A clean morning with 5ft NW swell (385 energy) and light winds. Good fun.

Monday the 7th sees a bigger 6ft to 6ft NW swell roll in (up to 701 energy), but the wind is cross or cross-onshore, making it choppy and marginal. Not the best.

Then, on Wednesday the 9th of September, we have another massive spike – a 7ft WNW groundswell with a very long 12-second period, and the energy is an enormous 1195. The wind is clean and cross-offshore though strong at 19 mph. This is big, powerful, and only for the experts. It could be a monster at the river mouth.

To wrap it up: the true standouts are Saturday the 29th of August for a clean, fun session, and Wednesday the 2nd of September for the best quality swell with glassy conditions.

Rusty.

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