
Surf Forecasts:
Viana do Castelo surf forecast from 3 Jul 2026:
- Best quality surf: Friday 3 Jul, 7PM (local time) - 3ft (0.9m), 11s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 3 Jul, 7PM (local time) - 3ft (0.9m), 11s period, WNW swell with 183 kJ wave energy.
- Next surfable swell (1★+): Friday 3 Jul, 7PM (local time) - 3ft (0.9m), 11s 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 Friday (Jul 03) at 7PM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.8m and 8s. 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 0.9m 11s and forecast to arrive on Friday (Jul 03) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Saturday (Jul 04) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 3rd Jul) | 3ft (0.9m) 11s |
| Best Surf | 7PM (Fri 3rd Jul) | 3ft (0.9m) 11s |
| Most Powerful | 7PM (Fri 3rd Jul) | 3ft (0.9m) 11s |
Table - best surf conditions forecast for Viana do Castelo over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s take a look at what’s cookin' for up north.
For the first few days, it’s a bit of a slow start. We’ve got a little pulse of swell comin' through Friday morning at Viana do Castelo. It’s a river break, so it's got that unique feel. The water’s sittin' at 63°, which is about 1° cooler than what’s normal for this time of year, so it’s a touch on the fresh side, but nothing crazy. That Friday morning session is your best bet early on. We're lookin' at clean 3 ft waves from the WNW with an 11-second period, and a light NE offshore breeze. The combined energy is moderate at 233, so there's enough push for a longboard or a funboard.
The window for decent surf is pretty narrow. After Friday morning, things drop off. Saturday and Sunday mornings offer glassy conditions, but the swell is tiny—down to 2 ft and 2 ft. It's surfable if you’re desperate for a paddle, but it's ordinary. From Sunday afternoon all the way through to the morning of July 11th, it's pretty bleak. We're talkin' a solid week of poor surf with heights rarely cracking 2 ft. There’s just no energy in the water.
We get a little nudge on the morning of July 12th with a 3 ft swell from the WNW and an 11-second period, but the energy is still weak at 103. It’s clean with a light NNW cross-offshore wind, but it’s nothing to write home about. That trend continues into the 13th, but the wind picks up, making it less appealing.
Now, for the real standout. Look at Tuesday morning, July 14th. The swell jumps to 4 ft from the NW. It's a short period at 7 seconds, but the energy is solid at 231. The wind is a slight air from the NNW, which is basically glassy. The water will be clean, and there will be some fun little waves to be had. This is your best window in the whole outlook—a proper morning session.
After that, it drops off again into the ordinary range for the rest of the week. The end of the 16-day run gets interesting on July 18th, but it’s a problem of too much of a good thing. We’re lookin' at 7 ft swell from the NNW on Saturday morning. That’s big. For a river break, that’s expert territory only. The energy is strong at 620, but it’s just too much juice for this spot to be fun for anyone but the most seasoned chargers.
So, where does that leave us? Friday morning (July 3rd) for a small, clean session, and Tuesday morning (July 14th) for the pick of the bunch. Get on it while you can.
Rusty.
Short Range ForecastMostly dry. Warm (max 34°C on Fri morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Mon morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | |||||||||||||||
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 11 | WNW 11 | WNW 11 | WNW 10 | W 10 | NW 11 | NW 10 | NW 10 | NW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 8 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph | |||||||||||||||||||||
186 | 186 | 128 | 82 | 50 | 31 | 50 | 47 | 21 | 32 | 31 | 26 | 13 | 12 | 20 | 36 | 51 | 78 | 55 | 53 | 45 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | glassy | cross-off | glassy | glassy | cross | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-off | cross | cross | off | cross | cross | off |
High Tide | 5:52PM3.24m | 6:17AM2.97m | 6:30PM3.21m | 6:57AM2.96m | 7:12PM3.16m | 7:42AM2.93m | 7:59PM3.08m | 8:35AM2.90m | 8:54PM2.99m | 9:35AM2.89m | 9:58PM2.90m | 10:44AM2.91m | 11:11PM2.87m | ||||||||
Low Tide | 11:33AM0.92m | 00:06AM0.83m | 12:11PM0.93m | 00:45AM0.85m | 12:53PM0.98m | 1:27AM0.89m | 1:41PM1.04m | 2:16AM0.94m | 2:37PM1.12m | 3:14AM1.00m | 3:44PM1.17m | 4:20AM1.04m | 5:00PM1.16m | ||||||||
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
— | — | 9:13 | — | — | 9:13 | — | — | 9:12 | — | — | 9:12 | — | — | 9:12 | — | — | 9:12 | — | — | 9:10 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 34 | 34 | 32 | 32 | 30 | 29 | 32 | 29 | 26 | 28 | 27 | 21 | 25 | 24 | 19 | 23 | 23 | 18 | 22 | 22 | 17 |
Feels °C | 32 | 31 | 30 | 30 | 29 | 26 | 30 | 27 | 23 | 26 | 25 | 19 | 23 | 22 | 18 | 22 | 22 | 17 | 21 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 11 | NNW 6 | WNW 10 | W 10 | WNW 10 | NW 10 | NW 10 | NW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 8 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
186 | 186 | 56 | 82 | 50 | 31 | 50 | 47 | 21 | 32 | 31 | 26 | 13 | 12 | 20 | 36 | 51 | 78 | 55 | 53 | 45 | |
Swell 2 Height (m) Direction Period (s) | NNW 6 | S 16 | WNW 11 | NNW 6 | NNW 6 | NW 5 | WNW 9 | WNW 9 | WNW 9 | NW 9 | NW 8 | NNW 8 | NNW 8 | NNW 8 | W 8 | W 7 | NW 7 | — | — | S 17 | SW 16 |
42 | 5 | 128 | 17 | 12 | 7 | 28 | 16 | 16 | 19 | 11 | 6 | 6 | 6 | 5 | 4 | 2 | — | — | 6 | 10 | |
Swell 3 Height (m) Direction Period (s) | S 16 | — | NNW 8 | N 8 | NW 8 | NW 11 | NNW 5 | SW 14 | W 11 | SW 12 | SW 13 | S 13 | WNW 3 | NW 11 | WNW 4 | NW 7 | — | — | — | — | — |
5 | — | 22 | 5 | 11 | 31 | 3 | 7 | 2 | 6 | 6 | 3 | 1 | 5 | 1 | 2 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 3 | NNW 6 | — | — | — | — | — | — | NW 3 | — | WNW 2 | NW 3 | NW 3 | NW 4 | — | — | — | — | — | — | NNW 4 |
1 | 29 | — | — | — | — | — | — | 2 | — | 1 | 1 | 2 | 4 | — | — | — | — | — | — | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 106 | 5 | 182 | 14 | 38 | 779 | 713 | 104 | 182 | 104 | 0 | 336 | 146 | 0 |
Best forecast wave conditions in Douro and Minho | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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.










