
Surf Forecasts:
Viana do Castelo surf forecast from 6 Jul 2026:
- Best quality surf: Sunday 12 Jul, 10PM (local time) - 4ft (1.2m), 8s period, NW swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 7PM (local time) - 3.5ft (1.1m), 10s period, WNW swell with 221 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 4AM (local time) - 1.5ft (0.4m), 9s period with NW 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 Monday (Jul 06) at 4AM. The primary swell is predicted to be 0.4m and 9s period with a secondary swell of 0.3m and 9s. 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 1.1m 10s and forecast to arrive on Saturday (Jul 11) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Jul 09) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 6th Jul) | 1.5ft (0.4m) 9s |
| Best Surf | 10PM (Sun 12th Jul) | 4ft (1.2m) 8s |
| Most Powerful | 7PM (Sat 11th Jul) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Viana do Castelo over the next 16 days.
Updates in hr min s Forecast update imminent
Right folks, Rusty here. Let's be straight with you: we've got a stretch ahead that's going to test your patience. The next two weeks are looking pretty bleak for a proper surf, with most days serving up small, weak waves and messy winds. The energy just isn't there.
We kick off Monday the 6th of July with a tiny 1 ft WNW swell, but it’s glassy in the morning at Viana do Castelo. The combined energy is only 57, so it's weak. You might get a few knee-high sliders, but it's very ordinary.
From Monday afternoon all the way through to Sunday the 19th of July, it’s a grim run. Most days see poor surf conditions with small swell, short periods, and bad wind directions. There are a couple of moments where it’s surfable but very ordinary – like Wednesday the 8th morning with a clean 1 ft wave (67 energy) and Monday the 13th morning with glassy 4 ft surf (183 energy). But these are tiny windows of mediocrity, not really worth getting excited about. Expect a lot of cross-shore chop and onshore slop.
Now, the one standout – and I mean the *only* standout – is right at the bitter end. On Sunday the 19th of July morning, we see a jump to 5 ft from the NNW (191 energy). The wind is a clean cross-offshore from the N at 9 mph. The period is short, only 6 seconds, so it's windswell, but for the afternoon, the swell bumps up to 7 ft from the NNW with a combined energy of 368. The wind goes strong from the NNW at 25 mph, but it's still cross-offshore. For a river break like Viana do Castelo, this could actually be half-decent, especially with the offshore flow cleaning it up. The wave height is in the expert-to-big-beginner zone, so it’s not one for the groms unless they’re feeling brave. The short period means it won’t have much grunt, but with clean conditions, there'll be some fun, punchy walls. If you can wait that long, this is your best bet.
Monday the 20th of July looks okay too, with 4 ft to 5 ft from the NNW and clean cross-offshore winds, but the swell energy is dropping. Tuesday the 21st sees it fade back to nothing.
So, the honest truth: there’s a massive gap of almost two weeks of poor-to-ordinary surf before we get a proper spike. Keep your expectations low, and if you're desperate, save your energy for that Sunday the 19th. Forecasts can change, but right now it's a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun night, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Thu morning, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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) | WNW 10 | WNW 10 | WNW 9 | WNW 8 | WNW 5 | WNW 6 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | WNW 12 | NW 11 | WNW 10 | WNW 9 | NW 9 | NW 9 | NW 8 |
Wave Graph | |||||||||||||||||||||
32 | 31 | 26 | 13 | 14 | 28 | 38 | 80 | 83 | 75 | 73 | 94 | 92 | 112 | 57 | 119 | 183 | 147 | 174 | 174 | 201 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | on | cross | cross-off | cross-on | cross | cross | cross | cross-on | glassy |
High Tide | 7:42AM2.93m | 7:59PM3.08m | 8:35AM2.90m | 8:54PM2.99m | 9:35AM2.89m | 9:58PM2.90m | 10:44AM2.91m | 11:11PM2.87m | 11:56AM3.00m | 00:26AM2.91m | 1:05PM3.14m | 1:37AM3.02m | 2:07PM3.31m | 2:38AM3.15m | |||||||
Low Tide | 1:41PM1.04m | 2:16AM0.94m | 2:37PM1.12m | 3:14AM1.00m | 3:44PM1.17m | 4:20AM1.04m | 5:00PM1.16m | 5:32AM1.02m | 6:16PM1.07m | 6:42AM0.94m | 7:25PM0.91m | 7:45AM0.82m | 8:25PM0.73m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | |
— | — | 9:12 | — | — | 9:12 | — | — | 9:12 | — | — | 9:10 | — | — | 9:10 | — | — | 9:09 | — | — | 9:09 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — |
Temp °C | 25 | 24 | 18 | 21 | 21 | 17 | 23 | 22 | 17 | 22 | 21 | 17 | 20 | 21 | 18 | 22 | 22 | 18 | 20 | 20 | 18 |
Feels °C | 25 | 23 | 18 | 21 | 20 | 17 | 22 | 20 | 15 | 20 | 19 | 17 | 20 | 20 | 20 | 22 | 22 | 18 | 20 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 8 | WNW 6 | WNW 10 | WNW 10 | WNW 10 | NW 5 | WNW 9 | NW 5 | WNW 9 | NW 13 | NW 5 | NW 11 | WNW 10 | WNW 9 | NW 9 | NW 9 | NW 8 |
32 | 31 | 26 | 13 | 12 | 28 | 38 | 80 | 83 | 20 | 73 | 49 | 92 | 7 | 19 | 119 | 183 | 147 | 174 | 174 | 201 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | NW 8 | NW 8 | WNW 4 | NW 8 | WNW 10 | W 7 | — | S 18 | WNW 9 | S 17 | WNW 9 | NW 5 | SW 17 | WNW 8 | WNW 8 | SW 16 | NW 4 | SW 15 | SW 19 | SW 15 |
19 | 11 | 10 | 3 | 2 | 20 | 4 | — | 6 | 75 | 6 | 94 | 14 | 11 | 54 | 36 | 10 | 9 | 8 | 15 | 8 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | SW 13 | S 13 | NNW 8 | NW 11 | W 8 | — | — | — | — | — | N 6 | SW 17 | S 17 | WNW 12 | NW 4 | — | SW 21 | S 21 | SW 15 | SW 19 |
6 | 6 | 3 | 6 | 5 | 5 | — | — | — | — | — | 16 | 11 | 6 | 57 | 6 | — | 18 | 8 | 8 | 15 | |
Wind waves Height (m) Direction Period (s) | — | — | NW 3 | — | WNW 5 | — | NW 6 | NW 5 | NW 5 | — | NW 5 | — | — | NW 9 | — | — | NW 4 | — | — | — | — |
— | — | 1 | — | 14 | — | 25 | 27 | 45 | — | 26 | — | — | 112 | — | — | 2 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 180 | 0 | 960 | 104 | 0 | 0 | 100 | 0 | 114 | 100 | 2 | 336 | 100 | 0 | 10 | 100 | 2 | 2 | 100 | 0 |
Best forecast wave conditions in Douro and Minho | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.










