Viana do Castelo Surf Forecast and Surf Report

Alright, Rusty here. Let’s break down the next couple of weeks for the lineup.

We’ve got a quiet start, but some solid windows are coming if you’re willing to wait. The first real chance to paddle out is this Sunday morning at Viana do Castelo (river). The water’s at 62°, which is a bit colder than what we’re used to for this time of year. Sunday morning brings a clean 4ft NW swell with a 12-second period, so there’s some nice energy pushing in (551). The wind is glassy, dead calm from the east – the river mouth should be looking sweet. It’s a fairly consistent break, but expect crowds.

After that, it fades fast. Monday morning is smaller at 3ft with a bit of NW groundswell, glassy again, but nothing to write home about. Tuesday drops to 2ft with a short period, and by Tuesday afternoon the wind is howling from the NNW at 22 mph – forget it. Wednesday bumps up to 6ft, but with a short 8-second period and moderate to fresh cross-off winds, the quality’s marginal.

Now, pay attention. On Thursday the 17th, we’ve got 7ft from the NW, but the wind is still strong and the system says it’s too big for this break. Friday the 18th morning cleans up: 5ft NW, 9-second period, with gentle NNE winds at 9 mph – clean and moderate energy (505). But the real standout is Saturday the 19th morning. That’s the one. We’re looking at 7ft of NW swell with a 14-second period, light offshore wind from the NNE at only 3 mph. The energy is cranking (1512). But this is big – over 8ft means it’s for experts only. The wave comment flags it as too big for this break, so only the most skilled should even think about it. That long period (14s) means powerful waves, best handled by the river’s shape.

Sunday the 20th morning is a nice recovery: 5ft NW, 11-second period, light easterly cross-off winds at 6 mph. Clean and very good conditions (534). Not a beast, but a solid session.

Then we hit another lull. Monday the 21st is the final true highlight. Morning and afternoon both show 6ft NW swell with a 13-second period and glassy winds. The energy is strong (1191 morning, 1228 afternoon). This is excellent for experienced surfers. The swell direction matches the optimum, and the river handles that long period groundswell well. Tuesday drops to 6ft but with cross-shore winds, not as clean.

From Wednesday the 23rd onward, it gets inconsistent and small. A few glassy mornings but the size drops hard: 4ft, then 2ft, then nothing worthwhile until a late pulse on the 26th and into the 27th. That late swell on the 27th is 6ft NW with a 14-second period, but with cross-onshore winds. Not ideal. The very end – Monday the 28th morning – gives a glassy 5ft NW with a 12-second period, but it’s cloudy and cross-onshore.

Bottom line: your best bets are Sunday 13th morning for clean small waves, and Saturday 19th morning for the big, powerful, expert-only sets. Monday 21st is your best all-around session for experienced surfers with clean, strong conditions. After that, keep your board ready but don’t hold your breath.

Rusty.

Read more