Viana do Castelo Surf Forecast and Surf Report

G’day crew, Rusty here. Let’s be straight with you about the surf at Viana do Castelo (Portugal) over the next couple of weeks. Honestly, it’s a bit of a rough stretch. There's nothing happening for the first week that I’d waste a drop of wax on – we’re talking tiny dribbles of swell, mostly under 1 ft, with poor conditions and cross-onshore winds. The combined wave energy is barely registering, with values like 37 and 24 in that first week, so it’s weak and uninspiring. The water’s running at about 63°F, which is a bit colder than normal for this time of year, so you’ll want a decent spring suit.

The first real flicker of hope comes on Wednesday 22nd July morning. We’ve got a glassy session with a 1 ft swell from the WNW, period around 10 seconds. It’s surfable but very ordinary. The combined energy is still low at 49, so don’t expect much push. Still, glassy conditions are a major positive – you might get a few fun ones if you’re patient.

After that, it’s back to small, messy stuff until Sunday 26th July morning. The morning looks clean with cross-offshore winds from the NNW and a tiny 2 ft WNW swell, period 10 seconds. The combined energy is 85 – still moderate but nothing to get excited about. The afternoon though, the wind jumps to 19 mph from the NNW, making it too choppy for a paddle.

Then, finally, we get a little bump. Monday 27th July morning shows a 2 ft WNW swell with cross-off winds and a combined energy of 147 – moderate, but it’s clean. The afternoon sees a jump to 4 ft from the NNW, but the period drops to 8 seconds and the wind is 19 mph cross-off. The energy is 212, so there’s more push, but that short period means it’ll be a bit crumbly and not great for the river mouth setup here. This is more likely to be a kite-surfing session.

The standout of the whole window – and I mean the only one worth marking on your calendar – is Thursday 30th July morning. We get a 4 ft swell from the west, period 8 seconds, with glassy conditions and combined energy of 146. The wind is light WNW, so it’ll be smooth as. At 4 ft, it’s fine for most surfers, though the short period means it might be a bit fat and not super punchy. Still, glassy and waist-high is a rare treat in this spell.

Friday 31st July morning is promising but less certain. The swell builds to 5 ft from the WNW, with a 9-second period and cross-off winds from the north at 12 mph. The combined energy jumps to 327 – moderate to strong. The direction (WNW) matches the optimum swell direction for Viana, so it could set up nicely at the river mouth. Just keep in mind, the afternoon winds pick up to 16 mph from the NNW, and crowds are often here, so get it early. At 5 ft, it’s still okay for intermediates, but anything over 5 ft starts pushing beginners. This one’s the best bet from the whole outlook – glassy and solid.

Honestly, there are big gaps of several days with nothing worth paddling out for. The breaks here are fairly consistent though, so it’s just a waiting game. Forecasts change, so keep an eye out.

Rusty.

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