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Viana do Castelo Surf Forecast
/ Douro & Minho (25 surf breaks) /
Surf Forecasts:
Viana do Castelo surfForecast / Douro & Minho / Portugal
16 Day Weather and Surf, issued 12 pm Sunday 10 May 2026 WESTForecast update in hr min s Forecast update imminent
Viana do Castelo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Viana do Castelo sea temperature is
16.3° C
(Which is 1.1°C warmer than normal for this time of year)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 (May 11) at 1AM. The primary swell is predicted to be 2.1m and 8s period with a secondary swell of 1.3m and 11s. Another secondary swell of 0.3m and 10s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Viana do Castelo in the next 16 days are 2.2m 12s and forecast to arrive on Thursday (May 14) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Wednesday (May 13) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 11th May) | 7ft (2.1m) 8s |
| Best Surf | 1AM (Mon 11th May) | 7ft (2.1m) 8s |
| Most Powerful | 10PM (Thu 14th May) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Viana do Castelo over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Very mild (max 17°C on Sun afternoon, min 12°C on Tue night). Winds decreasing (fresh winds from the S on Sun morning, calm by Tue night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Wed morning, min 9°C on Wed night). Winds increasing (calm on Wed morning, strong winds from the NNW by Thu afternoon). | ||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | SW 6 | NNW 13 | NNW 13 | NNW 12 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NW 9 | NW 9 | |
844 | 824 | 587 | 468 | 310 | 148 | 86 | 61 | 33 | 62 | 68 | 8 | 17 | 116 | 595 | 829 | 770 | 576 | 301 | 237 | 170 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross | cross | cross-on | cross-off | cross-off | cross | glassy | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 10:21PM2.74m | 11:11AM2.65m | 11:31PM2.85m | 12:13PM2.85m | 00:31AM3.02m | 1:06PM3.08m | 1:24AM3.20m | 1:55PM3.31m | 2:14AM3.35m | 2:41PM3.50m | 3:02AM3.45m | 3:27PM3.62m | 3:50AM3.48m | ||||||||
Low Tide | 3:58PM1.44m | 4:53AM1.24m | 5:16PM1.32m | 5:56AM1.08m | 6:20PM1.12m | 6:50AM0.87m | 7:14PM0.90m | 7:38AM0.68m | 8:04PM0.69m | 8:24AM0.52m | 8:51PM0.52m | 9:09AM0.43m | 9:38PM0.42m | ||||||||
 | |  | | |  |  | |  |  | |  |  | | | | | | | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — |
 | — | 8:42 | — | — | 8:43 | — | — | 8:44 | — | — | 8:45 | — | — | 8:45 | — | — | 8:46 | — | — | 8:47 | — |
2 | 1 | 6 | 2 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 17 | 14 | 16 | 17 | 15 | 15 | 16 | 15 | 16 | 16 | 13 | 16 | 15 | 13 | 15 | 15 | 13 | 15 | 15 | 12 |
9 | 11 | 10 | 13 | 14 | 14 | 15 | 15 | 14 | 14 | 12 | 9 | 10 | 7 | 6 | 8 | 7 | 7 | 9 | 9 | 8 | |
Swell 1 Height (m) Direction Period (s) | NNW 11 | NNW 11 | NNW 11 | NNW 11 | NNW 11 | SW 7 | SW 7 | SW 6 | NNW 8 | NNW 9 | SSW 6 | SW 6 | NNW 8 | NNW 13 | NNW 12 | NNW 11 | W 9 | NNW 10 | NNW 10 | WNW 8 | NW 9 |
 kJ | 78 | 160 | 418 | 251 | 214 | 128 | 52 | 31 | 33 | 62 | 12 | 8 | 12 | 116 | 595 | 829 | 7 | 576 | 301 | 7 | 170 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NNW 10 | NNW 9 | NNW 8 | SW 6 | SSW 6 | SW 15 | SW 14 | NNW 13 | WNW 10 | W 10 | W 10 | SW 13 | W 9 | W 9 | W 14 | WNW 13 |
| kJ | 65 | 34 | 19 | 8 | 8 | 148 | 86 | 61 | 16 | 12 | 8 | 8 | 17 | 10 | 8 | 7 | 7 | 6 | 6 | 4 | 34 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 19 | SW 18 | SW 18 | SW 16 | SSW 16 | SSW 16 | SSW 15 | W 11 | W 12 | W 11 | SW 13 | SW 13 | SW 13 | — | SW 12 | S 12 | S 12 | W 8 |
| kJ | — | — | — | 15 | 13 | 12 | 11 | 25 | 25 | 21 | 2 | 3 | 9 | 7 | 7 | 7 | — | 6 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | — | — | — | — | — | NNW 9 | NNW 6 | NNW 6 | NNW 5 | NNW 6 | — | NNW 10 | — | — | NW 9 | — |
| kJ | 844 | 824 | 587 | 468 | 310 | — | — | — | — | — | 68 | 145 | 66 | 90 | 165 | — | 770 | — | — | 237 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 116 | 106 | 106 | 100 | 100 | 0 | 0 | 14 | 0 | 0 | 130 | 19 | 1152 | 277 | 100 | 329 | 100 | 100 | 38 | 130 | 0 |
Best forecast wave conditions in Douro and Minho | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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