Surf Forecasts:
Viana do Castelo surf forecast from 24 Jul 2026:
- Best quality surf: Monday 27 Jul, 10AM (local time) - 4ft (1.2m), 10s period, NNW swell with glassy winds.
- Most powerful swell: Friday 31 Jul, 1PM (local time) - 5ft (1.5m), 10s period, W swell with 468 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 10PM (local time) - 2.5ft (0.8m), 6s period with W swell.
Best Forecast Surf Conditions for Viana do Castelo this week:
The surf forecast for Viana do Castelo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 24) at 10PM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Viana do Castelo in the next 16 days are 1.5m 10s and forecast to arrive on Friday (Jul 31) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (Jul 26) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 24th Jul) | 2.5ft (0.8m) 6s |
| Best Surf | 10AM (Mon 27th Jul) | 4ft (1.2m) 10s |
| Most Powerful | 1PM (Fri 31st Jul) | 5ft (1.5m) 10s |
Table - best surf conditions forecast for Viana do Castelo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s lined up for the Viana do Castelo region over the next couple of weeks. It’s a bit of a slow start, but there’s a couple of moments that could get the heart racing.
Right now, the water’s sitting at 69°, which is a touch warmer than usual for this time of year. The first few days are pretty flat and messy. Friday the 24th and Saturday the 25th are a write-off with tiny, weak swell and poor conditions. We’re looking at a gap of nothing worthwhile until Sunday morning the 27th.
That Monday morning, the 27th of July, is where things finally wake up. The wind goes completely glassy, and we’ve got a clean 4ft swell from the NNW with a 10-second period. The combined wave energy is moderate (328), and it’ll be a really nice morning for a paddle at Viana do Castelo (river). Just keep in mind, this spot is fairly consistent but can get crowded often, so get in early. The water is a touch warmer than average, making it comfortable.
The next standout is a bit further out, and it’s a big one. On Friday the 31st of July, the morning brings a clean 4ft from the WNW with a nice 11-second period, and the energy is building (350). That’s a solid option.
But the real headline act is Saturday the 1st of August. The swell pumps up to 8ft from the WNW with a 12-second period, and the combined energy is massive (1550). That’s a strong, powerful groundswell. However, this is too big for beginners, and it might even be pushing it for this river break. The wind is light cross-shore, so it’ll be clean, but that size is for experts only. It’s a promising long-range call, but don’t lock it in just yet.
After that, the week of the 2nd to the 8th of August sees a slow decline. The swell stays around 3ft to 6ft, but the wind is mostly cross-off or cross-shore, and the quality drops off. It’s not terrible, but it’s not a standout either. Most days are just marginal or poor.
So, to wrap it up: Monday the 27th is your best early bet for a clean, fun session. Saturday the 1st of August is the big one if you’ve got the skills and patience. Otherwise, it’s a pretty average run for the rest of the window.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Fri morning. Warm (max 24°C on Sun morning, min 15°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the NNW by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Mon morning, min 15°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NNW 7 | W 8 | W 6 | WNW 6 | WNW 8 | NNW 6 | WNW 9 | WNW 9 | NW 12 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 9 | NW 8 | NW 8 | NW 9 | WNW 10 | WNW 10 | WNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 19 | 12 | 41 | 45 | 6 | 225 | 17 | 16 | 68 | 277 | 256 | 267 | 188 | 177 | 135 | 68 | 69 | 59 | 37 | 36 | 26 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | glassy | cross | glassy | cross-on | cross | glassy | glassy | cross | cross-off | glassy | cross | off |
High Tide | 12:10PM2.60m | 00:40AM2.49m | 1:11PM2.69m | 1:41AM2.56m | 2:01PM2.82m | 2:28AM2.68m | 2:42PM2.96m | 3:07AM2.80m | 3:19PM3.10m | 3:41AM2.92m | 3:52PM3.23m | 4:14AM3.02m | 4:25PM3.32m | ||||||||
Low Tide | 6:32PM1.46m | 6:46AM1.41m | 7:30PM1.35m | 7:38AM1.32m | 8:17PM1.21m | 8:21AM1.21m | 8:56PM1.06m | 8:59AM1.08m | 9:31PM0.93m | 9:34AM0.95m | 10:03PM0.81m | 10:07AM0.85m | 10:35PM0.72m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | — | 9:00 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — | — | 8:55 | — |
mm | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 21 | 22 | 18 | 24 | 23 | 23 | 29 | 29 | 27 | 25 | 24 | 19 | 23 | 23 | 17 | 21 | 22 | 17 |
Feels °C | 20 | 20 | 21 | 18 | 18 | 14 | 19 | 18 | 21 | 27 | 27 | 25 | 25 | 24 | 19 | 23 | 23 | 17 | 21 | 22 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NNW 7 | W 6 | WNW 6 | WNW 8 | WNW 10 | WNW 9 | WNW 9 | NW 12 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 9 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 | NW 8 |
| kJ | 19 | 9 | 41 | 45 | 6 | 9 | 17 | 16 | 68 | 277 | 256 | 267 | 188 | 177 | 135 | 68 | 69 | 59 | 33 | 32 | 24 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | W 8 | W 7 | WNW 8 | NW 10 | — | NW 13 | NW 12 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | W 8 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 |
| kJ | 14 | 12 | 26 | 6 | 4 | — | 7 | 6 | 25 | 25 | 26 | 15 | 7 | 5 | 12 | 22 | 20 | 55 | 37 | 36 | 26 |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 11 | NNW 6 | W 11 | — | — | — | — | — | WNW 9 | — | — | — | W 12 | — | WNW 9 | — | — | N 9 | — | W 13 |
| kJ | 5 | 5 | 8 | 2 | — | — | — | — | — | 26 | — | — | — | 3 | — | 15 | — | — | 2 | — | 3 |
Wind waves Height (m) Direction Period (s) | SW 4 | W 4 | — | — | NW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 6 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 9 | — | — | 128 | 225 | 82 | 97 | 119 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 168 | 1239 | 0 | 0 | 350 | 205 | 2 | 439 | 0 | 0 | 130 | 0 | 104 | 104 | 0 | 0 | 151 | 0 | 0 | 14 | 0 |
Best forecast wave conditions in Douro and Minho | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Viana do Castelo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Viana do Castelo Surf forecast
The above surf forecast table for Viana do Castelo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Viana do Castelo can be found by selecting the local surf guide option on the grey menu. Our Viana do Castelo surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Viana do Castelo) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Viana do Castelo may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Viana do Castelo is 3 km (2 miles) from Viana do Castelo. If you plan a holiday in Douro and Minho, look for hotels and other accommodation in Viana do Castelo. Viana do Castelo has rooms for a wide range of budgets as well as car hire and transport links.
Nearest