Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 12 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
20.6° C
1.9° 

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 28 Jul 2026:

  • Best quality surf: Monday 3 Aug, 10PM (local time) - 4ft (1.2m), 8s period, W swell with cross-offshore winds.
  • Most powerful swell: Monday 3 Aug, 1PM (local time) - 4ft (1.2m), 9s period, W swell with 240 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 28 Jul, 10PM (local time) - 3.5ft (1.0m), 9s period with NW 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 Tuesday (Jul 28) at 10PM. The primary swell is predicted to be 1.0m and 9s 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 1.2m 9s and forecast to arrive on Monday (Aug 03) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 01) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 28th Jul)3.5ft (1.0m) 9s
Best Surf10PM (Mon 3rd Aug)4ft (1.2m) 8s
Most Powerful 1PM (Mon 3rd Aug)4ft (1.2m) 9s

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


The Lowdown

Alright, Rusty here, taking a look at what we've got cooking for the Viana do Castelo region. It's a bit of a slow start, but there's a glimmer of something promising further out if you're patient.

The first week or so is pretty quiet. The morning of the 30th offers a tiny, glassy 2ft WNW swell, with just a whisper of energy (73). It's surfable, but it's a knee-slapper at best. The energy builds a touch on the 31st morning with a 2ft NW swell, clean glass again, but the period is a short 6 seconds, so it's not going to have much push. The morning of the 3rd of August sees a 3ft W swell with a 9-second period (189 energy) and glassy conditions, which is about the best of the early days. The afternoon of the 3rd picks up to a 4ft W swell (241 energy), but it's cross-shore wind, so it's a bit of a messy affair.

The real standout is on the 6th of August. Thursday morning shows a 5ft NNW swell (277 energy) with a light cross-shore wind, but it's the afternoon that's the call. The swell jumps to 6ft from the NNW (343 energy) with a clean, cross-offshore wind. That's a proper pulse of energy and the cleanest conditions we've seen. It's a bit on the bigger side, but with the river mouth setup and those clean winds, it could be a lot of fun for the experienced crew.

Then, on the 11th of August, the forecast is for a serious spike. The morning shows a 8ft NW swell (1270 energy) with a 11-second period and clean cross-offshore wind. The energy is massive, and the notes say it's predicted to be too big for this break. That's expert territory only, and only if the banks are holding. It's a long way off, so don't book your flights yet, but it's worth keeping an eye on.

For the rest of the period, the 9th of August has a clean 3ft WNW swell with a long 12-second period (243 energy), which is nice for the longboard if you're willing to wait for the sets. The 12th of August morning has a 5ft NNW swell (365 energy) with clean wind, but it's a bit of a gamble.

So, the best on offer is the afternoon of the 6th of August, with that 6ft NNW swell and clean cross-offshore wind. The 11th of August is a huge, powerful swell, but it's likely only for the experts and the forecast is still a bit of a question mark. We're just going to have to see how it plays out.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Tue morning, min 16°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Fri morning, min 16°C on Fri night). Wind will be generally light.

Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
0
0
1
1
0
0
1
0
1
0
0
1
0
0
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
NW
10
1.1
NW
10
0.9
NW
9
0.6
NNW
9
0.7
NW
8
0.5
WNW
10
0.5
WNW
9
0.5
WNW
10
0.8
NW
6
0.4
WNW
9
0.6
NW
7
0.7
W
9
0.7
W
9
0.7
W
9
0.7
W
9
0.7
W
8
0.7
W
8
0.7
W
9
1
W
9
1.2
W
9
1.2
W
8
Wave Graph
Metric surfscale
Energy kJ
250
200
132
54
69
55
50
51
45
29
27
83
78
74
74
68
66
76
173
230
201
Wind (km/h)
5
SW
15
WNW
10
N
5
NW
15
NW
10
N
0
W
15
NW
5
SE
5
SSW
15
NW
5
E
10
SSW
15
WNW
0
SSE
5
SSW
15
NW
5
N
5
WSW
15
WNW
10
NNE
Wind State
on
cross
cross-off
cross
cross
cross-off
glassy
cross
cross
glassy
cross
glassy
cross-on
cross
glassy
cross-on
cross
cross-off
glassy
cross
cross-off
High Tide
3:19PM3.10m
3:41AM2.92m
3:52PM3.23m
4:14AM3.02m
4:25PM3.32m
4:46AM3.11m
4:57PM3.39m
5:18AM3.16m
5:31PM3.41m
5:52AM3.19m
6:06PM3.38m
6:30AM3.18m
6:45PM3.29m
Low Tide
9:31PM0.93m
9:34AM0.95m
10:03PM0.81m
10:07AM0.85m
10:35PM0.72m
10:40AM0.77m
11:08PM0.66m
11:15AM0.72m
11:41PM0.64m
11:50AM0.73m
00:18AM0.66m
12:30PM0.78m
00:57AM0.73m
clear
clear
clear
clear
clear
cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
6:26
6:28
6:28
6:28
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:58
8:57
8:55
8:54
8:52
8:52
8:51
 mm
Temp °C
24
23
18
21
21
18
22
21
18
22
21
18
21
21
18
22
21
18
23
23
20
Feels °C
24
23
19
21
21
18
22
20
19
23
20
20
21
21
19
22
20
17
23
23
21
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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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