Viana do Castelo Surf Forecast and Surf Report

Alright, let’s break it down. Your local surf reporter Rusty here, looking at the next couple of weeks.

Right off the bat, I’ll be straight with you – there’s no real standout swell on the cards. The whole 16-day window is a pretty flat run, with only small, often weak pulses of energy. The first few days are a write-off for anything decent, and it stays that way right through.

We’re looking at Viana do Castelo, a river break that’s exposed to the west. It’s fairly consistent, but for most of this period, the wave heights are tiny – from 1ft to barely 4ft. The energy is weak, with combined swell energy often in the low double digits (40–54) for the first few days, and only occasionally bumping into the 100–200 range (like 126 on Saturday morning, 1 August, or 173 on Monday afternoon, 3 August). But even then, the period is short, mostly 8 or 9 seconds, so it’s not muscle-y groundswell.

The real killer is the wind. On Friday morning, 31 July, we get a little 1ft WNW swell with 5 km/h cross-offshore wind from the NNW, so it’s clean, but that’s about it. The water temperature is 66°F, which is just about normal for the time of year, so no drama there.

The only morning that gives me a little hope is Sunday morning, 9 August. We’ve got 3ft from the WNW, with a period of 8 seconds, and the wind is glassy from the SW at 5 km/h. That’s the best you’ll see – clean, small, but surfable. So if you’re desperate, mark that date. But it’s still only 3ft, and the energy is 145, so it’s ordinary.

For the rest of the window, it’s a mix of onshore and cross-shore winds, often moderate to fresh breezes (20–30 km/h), which will chop up the surface. The swell never gets above 4ft, and most days are cross-off or cross-shore, not truly offshore. So it’s more of a longboard or funboard kind of affair, if you’re lucky.

Given the very small size and the persistent wind, this setup looks more interesting for kite surfing than paddle surfing, especially on the afternoons with stronger NW winds.

So, honestly, there’s no big swell, no epic conditions, no must-surf day. If you’re a beginner, the small waves are fine, but the wind is a problem. The best you’ll do is a clean 2ft–3ft morning. It’s a long gap of mediocrity. Forecasts can change, but as it stands, keep your expectations low.

Rusty.

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