Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 6 pm 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
16.6° C
1.6° 

Viana do Castelo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Viana do Castelo surf forecast from 10 Jul 2026:

  • Best quality surf: Saturday 11 Jul, 1AM (local time) - 2.5ft (0.7m), 8s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 11 Jul, 10AM (local time) - 2ft (0.6m), 11s period, NW swell with 92 kJ wave energy.
  • Next surfable swell (1★+): Saturday 11 Jul, 1AM (local time) - 2.5ft (0.7m), 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 (Jul 11) at 1AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.4m and 12s. 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 0.6m 11s and forecast to arrive on Saturday (Jul 11) at 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Friday (Jul 17) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sat 11th Jul)2.5ft (0.7m) 8s
Best Surf 1AM (Sat 11th Jul)2.5ft (0.7m) 8s
Most Powerful10AM (Sat 11th Jul)2ft (0.6m) 11s

Table - best surf conditions forecast for Viana do Castelo over the next 16 days.


Alright folks, Rusty here. Let’s have a look at the surf ahead for Viana do Castelo.

Right off the bat, this is a tough run. The next week and a half is pretty grim – small, weak, and messy. The water's sitting at 62°, which is a bit colder than normal for this time of year, so you’ll want a decent wetsuit.

We’ve got a long dry spell here. From Friday the 10th right through to the 19th, there’s barely a wave worth paddling for. The swell is tiny, mostly under 2ft, with weak energy (down in the 40s and 50s on the energy scale). The wind is all over the place – cross, cross-on, onshore – keeping things choppy and ordinary. The only real glimmer in that first week is Saturday morning, July 11th. It’s not much, but we get a glassy 2ft NW swell with a bit of period (11 seconds) and the energy nudges up to 141. It’s surfable, but very average. The rest of that period is a write-off.

Now, the real interest comes in the second week. Monday morning, July 20th is the first proper standout. We’ve got a clean 5ft swell from the NNW, with a clean north wind keeping it tidy. The combined energy is a solid 302, so there’s a bit of push. That’s the best session of the run so far – good for a wide range of surfers.

Then Tuesday morning, July 21st is worth a mention. It’s a touch smaller at 4ft, but you get a light offshore from the NE and clean conditions. The energy is 275 – still solid. A good morning for a longer session.

The standout of the whole outlook, though, is Saturday morning, July 25th. This is a big one. We’re looking at 8ft of swell from the NW with a long period of 12 seconds – that’s serious groundswell. The energy is through the roof at 1731 and the wind is clean offshore. But here’s the catch: at this size, this river break is really only for the experts. The forecast says it’s too big for the break, so it’ll be a serious, heavy affair. The afternoon on the 25th is still big at 7ft, but the wind goes cross-shore and creates a chop, so the morning is the window.

Bottom line: Don’t get your hopes up for the first 10 days. The good stuff kicks off on the 20th, and if you’re a confident surfer, the 25th morning could be a proper session – but it’s a long-range call, so keep an eye on it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Sat morning, min 15°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Wed morning, min 17°C on Mon night). Wind will be generally light.

Fri
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
WNW
9
0.7
WNW
8
0.6
NW
11
0.6
NW
10
0.7
NW
9
0.7
NW
9
0.7
NW
8
0.4
NW
9
0.4
NW
8
0.4
NW
8
0.6
WSW
6
0.4
WNW
11
0.4
WNW
10
0.5
W
10
0.5
W
9
0.5
W
9
0.4
W
8
0.5
W
9
0.4
W
9
0.4
W
8
0.4
W
8
Wave Graph
Metric surfscale
Energy kJ
68
59
92
80
88
79
71
27
22
16
28
40
33
47
41
39
21
41
25
22
21
Wind (km/h)
15
WNW
10
N
5
SW
15
SSW
5
S
20
SSE
15
SSW
15
SE
15
S
15
SSW
5
SE
15
S
15
SSW
10
SE
15
SSE
10
SW
0
NNE
5
W
15
WNW
10
N
15
NNW
Wind State
cross
cross-off
glassy
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-on
on
cross
cross-on
on
glassy
glassy
cross
cross-off
cross-off
High Tide
00:26AM2.91m
1:05PM3.14m
1:37AM3.02m
2:07PM3.31m
2:38AM3.15m
3:03PM3.47m
3:34AM3.27m
3:54PM3.58m
4:24AM3.34m
4:42PM3.63m
5:11AM3.35m
5:27PM3.61m
5:57AM3.30m
Low Tide
6:16PM1.07m
6:42AM0.94m
7:25PM0.91m
7:45AM0.82m
8:25PM0.73m
8:42AM0.70m
9:19PM0.57m
9:33AM0.61m
10:09PM0.46m
10:22AM0.57m
10:56PM0.42m
11:08AM0.59m
11:41PM0.46m
11:52AM0.67m
clear
part cloud
part cloud
clear
part cloud
cloud
clear
clear
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:11
6:11
6:11
6:13
6:13
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:10
9:09
9:09
9:08
9:08
9:07
9:07
9:07
 mm
Temp °C
19
16
21
21
18
21
21
17
20
20
18
21
21
19
22
22
19
21
21
19
23
Feels °C
18
15
20
20
17
18
19
16
19
19
18
20
20
19
21
22
21
20
20
18
19
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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