Viana do Castelo Surf Forecast and Surf Report

Alright folks, it’s Rusty here. Let’s have a look at what’s cookin’ for the Viana do Castelo stretch over the next couple of weeks.

First up, we’ve got a bit of a slow start. The first few days have some small, weak waves but the wind and conditions are just not playing ball. The real action starts to bubble up on Thursday the 20th. The morning session is looking promising with a clean 4ft NW swell and a light cross-offshore breeze from the NNW. The combined energy is moderate (276), so there’s enough push to get into some fun ones. The river-mouth setup at Viana do Castelo (Portugal) is a classic spot, and with the water temp sitting at 65°, which is a touch colder than usual for this time of year, you’ll want a steamer for the early morning paddle.

Friday the 21st keeps the NW swell running, bumping up to 6ft in the morning, but the wind picks up to a moderate breeze. The afternoon gets a bit stronger with 22 mph winds, making it a bit of a wrestle, but the 6ft swell has some proper energy (737) behind it. It’s more of a chop-fest than a glassy session.

Saturday the 22nd is the standout of the first week. The morning is pure magic: glassy conditions with a light wind from the west, and a 3ft NNW swell. The energy is moderate (269), but with that glassy surface, the waves will be clean and lined up. This is the session to circle – a rare, smooth window of perfection. The afternoon stays clean with a cross-offshore breeze, but the swell drops a touch.

Sunday the 23rd sees a shift – the wind swings onshore, and the quality drops. The swell is still there at 4ft, but the surface gets messy. Not your best bet.

After that, the middle of the week gets ugly. Monday the 24th and Tuesday the 25th are flat and blown out – a real lull. The swell energy drops to near zero (20-95). A couple of days you’re better off doing something else.

We get a little pulse back on Wednesday the 26th with a 5ft WNW swell, but it’s rainy and cross-onshore, so it’s a tough call. The real gem comes on Thursday the 27th morning: clean 5ft NW swell with a light offshore wind from the north. The energy is solid (359), and the conditions are clean. Another good session.

But the true crown jewel of the whole outlook is Friday the 28th morning. The wind drops to zero – dead calm, glassy. A 5ft NW swell with a 10-second period rolling in, and the energy is pumping (408). This is as good as it gets for a river-mouth wave. The waves will be proper, clean, and with that long period, the sets will push through with some serious shape. It’s going to be a day to remember.

Saturday the 29th and Sunday the 30th are a bit of a mixed bag – the swell stays up around 6ft to 6ft, but the wind is onshore, making it a bumpy ride. The combined energy gets strong (500+), but it’s not going to be clean.

Now, looking into the second week, Monday the 31st of August sees a big jump in swell size – 8ft from the NW. The energy is very strong (over 1000). But the forecast notes this is too big for the break, so unless you’re a seasoned charger looking for a beast of a day, it’s one to watch from the beach. The wind is light, but the size is a handful.

Tuesday the 1st of September brings a drop back to 5ft, with a clean morning session on offer. A light offshore breeze and moderate energy (400) make for a fun, manageable day. The Wednesday and Thursday after that keep the small to moderate waves rolling, but the wind is a bit mixed.

The last day in the window, Thursday the 3rd of September morning, is a nice little surprise – clean 3ft WNW swell with a light offshore wind. A small but clean option to finish the run.

All in all, the standout best sessions are the glassy Saturday the 22nd morning and the dead-calm Friday the 28th morning. Those are the ones you want to be in the water for. The rest of the time, pick your moments with the wind.

Rusty, signing off.

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