Surf Forecasts:
Viana do Castelo surf forecast from 15 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 10PM (local time) - 1.5ft (0.5m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 4AM (local time) - 3.5ft (1.0m), 8s period, NNW swell with 120 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 10PM (local time) - 1.5ft (0.5m), 8s 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 Wednesday (Jul 15) at 10PM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.4m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Viana do Castelo in the next 16 days are 1.0m 8s and forecast to arrive on Monday (Jul 20) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Jul 18) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 15th Jul) | 1.5ft (0.5m) 8s |
| Best Surf | 10PM (Wed 15th Jul) | 1.5ft (0.5m) 8s |
| Most Powerful | 4AM (Mon 20th Jul) | 3.5ft (1.0m) 8s |
Table - best surf conditions forecast for Viana do Castelo over the next 16 days.
Short Range ForecastMostly dry. Warm (max 21°C on Wed morning, min 17°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon morning, min 16°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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) | W 9 | W 9 | W 8 | W 9 | WNW 9 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 6 | NW 7 | NW 8 | NNW 8 | NNW 8 | NW 8 | NW 8 | WNW 10 | WNW 10 | WNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 40 | 39 | 21 | 41 | 26 | 22 | 21 | 13 | 13 | 13 | 13 | 80 | 77 | 57 | 117 | 95 | 60 | 28 | 20 | 33 | 31 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-on | on | glassy | cross-off | cross | off | on | cross | cross | cross-on | cross-on | cross | cross-on | on | cross | cross-on | cross-on | glassy |
High Tide | 4:42PM3.63m | 5:11AM3.35m | 5:27PM3.61m | 5:57AM3.30m | 6:11PM3.51m | 6:41AM3.20m | 6:55PM3.36m | 7:25AM3.06m | 7:38PM3.16m | 8:11AM2.90m | 8:23PM2.95m | 9:00AM2.76m | 9:14PM2.74m | ||||||||
Low Tide | 10:22AM0.57m | 10:56PM0.42m | 11:08AM0.59m | 11:41PM0.46m | 11:52AM0.67m | 00:25AM0.56m | 12:36PM0.80m | 1:09AM0.72m | 1:20PM0.97m | 1:53AM0.90m | 2:06PM1.16m | 2:39AM1.09m | 2:59PM1.33m | 3:32AM1.26m | |||||||
 |  |  | | | | | | | | |  | | | | | | | | | | |
 | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:06 | — | — | 9:05 | — | — | 9:05 | — | — | 9:04 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 18 | 21 | 21 | 18 | 21 | 21 | 18 | 22 | 22 | 17 | 22 | 21 | 17 |
Feels °C | 21 | 21 | 20 | 21 | 21 | 21 | 19 | 19 | 18 | 21 | 20 | 19 | 21 | 22 | 20 | 22 | 23 | 18 | 22 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 9 | WNW 9 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 6 | NW 7 | NW 8 | NNW 8 | NNW 8 | NW 8 | NW 8 | NW 7 | WNW 10 | WNW 10 |
| kJ | 40 | 39 | 21 | 41 | 26 | 22 | 21 | 13 | 13 | 13 | 13 | 80 | 77 | 57 | 117 | 95 | 60 | 28 | 15 | 33 | 31 |
Swell 2 Height (m) Direction Period (s) | W 5 | W 6 | W 5 | W 5 | WSW 5 | WSW 4 | WSW 4 | WSW 4 | SW 4 | SW 6 | SW 5 | NW 10 | NNW 9 | W 9 | W 8 | W 8 | WNW 11 | WNW 11 | WNW 10 | NW 6 | NNW 6 |
| kJ | 9 | 9 | 8 | 4 | 4 | 4 | 4 | 2 | 1 | 1 | 1 | 4 | 8 | 14 | 12 | 11 | 25 | 23 | 20 | 10 | 7 |
Swell 3 Height (m) Direction Period (s) | NNW 6 | SW 15 | W 10 | SW 12 | SW 13 | S 11 | W 6 | SW 6 | SW 6 | — | NW 11 | SW 19 | W 9 | — | SW 18 | WNW 12 | W 8 | W 7 | W 7 | WSW 7 | WSW 4 |
| kJ | 4 | 8 | 17 | 6 | 7 | 2 | 1 | 1 | 1 | — | 5 | 15 | 7 | — | 12 | 15 | 4 | 4 | 4 | 9 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 2 | NNW 5 | NNW 5 | NW 5 | — | — | — | — | — | SSW 2 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | 19 | 23 | 17 | — | — | — | — | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 180 | 0 | 1089 | 768 | 733 | 869 | 1475 | 205 | 756 | 1236 | 2 | 18 | 130 | 5 | 416 | 326 | 10 | 336 | 106 | 0 |
Best forecast wave conditions in Douro and Minho | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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