Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 12 am 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
16.8° C
1.4° 

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 13 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 4AM (local time) - 2.5ft (0.7m), 6s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 15 Jul, 7PM (local time) - 2.5ft (0.8m), 8s period, W swell with 82 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 4AM (local time) - 2.5ft (0.7m), 6s period with WSW 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 14) at 4AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.3m and 11s. 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 0.8m 8s and forecast to arrive on Wednesday (Jul 15) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 5s period and expected on Sunday (Jul 19) at 7PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Tue 14th Jul)2.5ft (0.7m) 6s
Best Surf 4AM (Tue 14th Jul)2.5ft (0.7m) 6s
Most Powerful 7PM (Wed 15th Jul)2.5ft (0.8m) 8s

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


Alright folks, Rusty here. Let’s break down the next 16 days for Viana do Castelo. It’s a river break, exposed to the west, and it’s got a pretty rough start – flat and messy for a good long while. The first real surfable window doesn’t show up until late in the run, so patience is key.

The first week is a write-off. From Monday 13 July right through to Sunday 20 July, it’s all poor surf conditions – tiny waves, cross-onshore winds, and weak energy. Not a single worthwhile wave in that stretch. That’s a solid 8 days of nothing. You’ve got to wait until Tuesday 21 July for anything remotely rideable, but even then it’s only “surfable waves but very ordinary conditions” – 1 ft of WNW swell with a 10-second period, and a clean morning but only a score of 1. Not the kind of stuff you’d paddle out for unless you’re desperate. The rest of that week stays small and ordinary, with the occasional clean morning but still tiny waves.

The real standout comes in the second week. On Monday 27 July, early morning, the stars finally align. We’ve got a 6 ft NW swell, 9-second period, and the wind goes glassy – totally calm, zero wind. That’s going to produce clean, wobbly little waves at the river mouth. The combined energy is 437 – solid moderate punch, enough to get your heart rate up. This is the best of the whole forecast. The swell direction is NW, which is a bit off the optimum W, but still delivers. Crowds are likely here, but with that quality, it’s worth the company. Keep in mind that 6 ft is getting a bit big for absolute beginners, but if you’re comfortable in shoulder-high stuff, you’ll be happy.

Then on Tuesday 28 July, the morning sees a bump in size – 6 ft NW, again 9-second period, with a cross-off wind from the north at 12 mph. The energy jumps to 656 – that’s strong, powerful waves. The wind is offshore enough to keep the face clean, but it’s moderate breeze, so expect some texture. This one’s for the more experienced crew – over 5 ft, and at 6 ft it’s borderline expert territory, especially with that strong energy. The river mouth might handle it, but watch for closeouts. Still, if you’re good, it’s a ripper of a morning.

Bottom line: the first 8 days are a dud. Then we get a few ordinary days, and then the real action is on Monday 27 and Tuesday 28 July. Monday morning with glassy conditions is the clear pick. Get out there if you can.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Mon morning, min 16°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu morning, min 16°C on Thu night). Wind will be generally light.

Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
NW
8
0.4
NW
8
0.8
WSW
6
0.4
WNW
11
0.4
WNW
10
0.5
W
10
0.5
W
9
0.5
W
8
0.7
W
7
0.4
WNW
9
0.4
WNW
9
0.4
WNW
8
0.4
W
8
0.6
WNW
5
0.6
WNW
5
0.6
NW
5
0.5
NW
5
0.9
NW
6
0.5
NW
5
0.4
NW
5
0.4
NW
5
Wave Graph
Metric surfscale
Energy kJ
18
17
46
40
33
46
40
35
44
27
26
23
21
22
18
16
13
58
12
9
6
Wind (km/h)
20
SSE
15
SSW
5
SE
5
SSE
10
WSW
5
E
10
S
10
WSW
5
ESE
10
S
10
WSW
5
N
5
NW
20
NW
10
N
5
NW
15
NW
10
SE
10
S
5
W
5
ESE
Wind State
cross-on
cross-on
cross
cross-on
on
glassy
cross-on
cross-on
glassy
cross-on
cross-on
glassy
cross
cross
cross-off
cross
cross
cross
cross-on
cross-on
glassy
High Tide
3:03PM3.47m
3:34AM3.27m
3:54PM3.58m
4:24AM3.34m
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
Low Tide
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
00:25AM0.56m
12:36PM0.80m
1:09AM0.72m
1:20PM0.97m
1:53AM0.90m
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:13
6:13
6:15
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:08
9:08
9:07
9:07
9:07
9:06
9:05
 mm
Temp °C
21
21
18
21
21
18
21
21
18
21
21
19
21
20
17
21
21
18
22
21
19
Feels °C
19
20
18
21
21
20
20
21
20
21
21
20
20
19
16
21
21
20
22
22
20
  • 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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