Surf Forecasts:
Viana do Castelo surf forecast from 20 Jun 2026:
- Best quality surf: Friday 26 Jun, 10PM (local time) - 4.5ft (1.3m), 9s period, W swell with glassy winds.
- Most powerful swell: Friday 26 Jun, 4PM (local time) - 4.5ft (1.4m), 9s period, W swell with 332 kJ wave energy.
- Next surfable swell (1★+): Saturday 20 Jun, 10AM (local time) - 3ft (0.9m), 8s period with WNW 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 Saturday (Jun 20) at 10AM. The primary swell is predicted to be 0.9m and 8s period. 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 1.4m 9s and forecast to arrive on Friday (Jun 26) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Tuesday (Jun 23) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 20th Jun) | 3ft (0.9m) 8s |
| Best Surf | 10PM (Fri 26th Jun) | 4.5ft (1.3m) 9s |
| Most Powerful | 4PM (Fri 26th Jun) | 4.5ft (1.4m) 9s |
Table - best surf conditions forecast for Viana do Castelo over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 26°C on Mon afternoon, min 17°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed afternoon. Warm (max 27°C on Tue morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||||
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 8 | WNW 8 | W 7 | WNW 7 | WNW 7 | NNW 8 | W 7 | W 11 | W 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 10 | W 9 | SSW 5 | WNW 11 | WNW 10 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 101 | 96 | 70 | 51 | 49 | 28 | 40 | 37 | 118 | 78 | 69 | 47 | 34 | 32 | 50 | 43 | 52 | 156 | 144 | 332 | 257 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-on | cross | cross-off | cross-off | cross | cross | cross-on | glassy | glassy | cross-on | cross | glassy | cross-on | on | cross | cross-on | on | glassy |
High Tide | 8:01AM2.95m | 8:16PM3.09m | 8:58AM2.82m | 9:13PM2.93m | 9:58AM2.73m | 10:12PM2.79m | 11:00AM2.69m | 11:15PM2.70m | 12:00PM2.71m | 00:15AM2.66m | 12:54PM2.76m | 1:11AM2.67m | 1:40PM2.84m | 1:59AM2.72m | |||||||
Low Tide | 1:56PM1.09m | 2:39AM0.96m | 2:55PM1.24m | 3:38AM1.09m | 4:00PM1.35m | 4:39AM1.19m | 5:07PM1.40m | 5:38AM1.23m | 6:10PM1.38m | 6:31AM1.23m | 7:05PM1.32m | 7:18AM1.21m | 7:51PM1.23m | ||||||||
 | |  | | |  | |  | | | |  | |  | | | | | | | | |
 | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 |
mm | — | — | — | — | — | 2 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 22 | 24 | 23 | 19 | 24 | 26 | 22 | 27 | 26 | 24 | 24 | 24 | 20 | 21 | 22 | 18 | 20 | 20 | 18 |
Feels °C | 23 | 22 | 23 | 24 | 22 | 19 | 25 | 26 | 23 | 28 | 26 | 24 | 25 | 25 | 22 | 20 | 22 | 18 | 19 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | W 7 | WNW 7 | NNW 9 | NNW 8 | W 7 | W 7 | W 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 10 | W 9 | WNW 9 | SW 6 | WNW 10 | W 9 | W 9 |
| kJ | 101 | 96 | 70 | 51 | 32 | 28 | 40 | 36 | 118 | 78 | 69 | 47 | 34 | 32 | 50 | 43 | 47 | 54 | 144 | 332 | 257 |
Swell 2 Height (m) Direction Period (s) | — | — | NW 5 | NNW 8 | W 9 | W 8 | NW 8 | W 11 | NNW 8 | NW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | NW 6 | WNW 13 | WNW 12 | WNW 11 | SW 6 | SW 15 | SW 15 |
| kJ | — | — | 18 | 7 | 2 | 20 | 17 | 37 | 6 | 35 | 22 | 18 | 17 | 17 | 11 | 33 | 49 | 156 | 40 | 8 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | NNW 9 | NNW 10 | — | WSW 6 | W 11 | NW 8 | — | — | — | — | N 9 | W 11 | W 14 | NNW 6 | NNW 6 | SW 16 | SW 16 | — | — |
| kJ | — | — | 8 | 10 | — | 13 | 10 | 16 | — | — | — | — | 2 | 2 | 4 | 4 | 4 | 10 | 10 | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 3 | — | — | WNW 7 | NW 4 | NW 4 | NW 4 | NNW 6 | — | — | — | — | — | — | S 3 | SSW 5 | — | — | — | — |
| kJ | — | 5 | — | — | 49 | 5 | 15 | 16 | 57 | — | — | — | — | — | — | 5 | 52 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 100 | 0 | 189 | 111 | 0 | 0 | 14 | 10 | 18 | 0 | 0 | 224 | 104 | 0 | 104 | 104 | 2 | 18 | 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.
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