Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 12 am 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
19.5° C
1.0° 

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 22 Jul 2026:

  • Best quality surf: Saturday 25 Jul, 7PM (local time) - 7.5ft (2.3m), 7s period, NW swell with cross-offshore winds.
  • Most powerful swell: Saturday 25 Jul, 7PM (local time) - 7.5ft (2.3m), 7s period, NW swell with 539 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 7PM (local time) - 1ft (0.3m), 9s 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 Wednesday (Jul 22) at 7PM. The primary swell is predicted to be 0.3m and 9s period with a secondary swell of 0.4m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Viana do Castelo in the next 16 days are 2.3m 7s and forecast to arrive on Saturday (Jul 25) 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 1.3m 6s period and expected on Sunday (Jul 26) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 22nd Jul)1ft (0.3m) 9s
Best Surf 7PM (Sat 25th Jul)7.5ft (2.3m) 7s
Most Powerful 7PM (Sat 25th Jul)7.5ft (2.3m) 7s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for the Viana do Castelo area over the next couple of weeks.

Truth be told, the first few days are a bit of a write-off. We’ve got a pretty flat spell running from Wednesday the 22nd right through to Friday the 24th. Tiny little waves, messy wind, and just not worth paddling out for. You’d be better off fixing a ding or having a coffee.

Saturday the 25th morning sees a little flicker of life. The swell is only 3 ft from the W with a short period, but the wind is a light cross-offshore, so it’s clean. The energy is still weak (68), so it’s just a “surfable but ordinary” kind of session for the keen.

Sunday the 26th is a bit of a mixed bag. The morning has a 4 ft NNW swell but the wind is up, making it pretty poor. The afternoon drops right off to 1 ft, so not much happening.

Now, here’s where we get a proper standout. Monday morning the 27th is your best bet in this whole outlook. The swell is 4 ft from the NNW with a solid 10-second period, giving us moderate wave energy (316). The wind is glassy – absolutely dead calm. That’s a major positive. The break is a river mouth setup, so it’s exposed to the W swell direction, and with the optimum swell coming from the W, this is a nice match. Expect clean, lined-up waves. It’s a beginner-friendly spot, but crowds are often around, so get in early.

Tuesday the 28th is back to poor conditions, so don’t get your hopes up.

Then, Wednesday morning the 29th is another strong option. Swell is 4 ft from the NW with a long 11-second period, and again, glassy conditions. The energy is moderate (284). This is a real groundswell pulse, and for a river mouth, that longer period should produce some nice, well-shaped runners. Get on it.

The rest of the week through the 30th and 31st is a bit ordinary, with small, choppy waves or glassy but tiny conditions.

Looking into the second week, there’s a promising window on Saturday morning the 1st of August. Swell picks up to 5 ft from the WNW, with a 10-second period and strong energy (386). The wind is a light cross-offshore, so it’ll be clean. That’s a solid session for intermediate surfers. Sunday the 2nd is a bit windier, but Monday morning the 3rd delivers another clean, 4 ft NNW swell with a long 11-second period and good energy (337). The wind is light cross-offshore again.

Overall, the standout days are clearly Monday the 27th and Wednesday the 29th of July. Those are the ones to circle on the calendar. The rest of the time is a mix of small, short-period slop or too windy. The water temperature is about average for this time of year, so no major surprises there.

Stay stoked, and keep an eye on that glassy morning window.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Mon morning, min 15°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Mon morning).

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
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
0
0
0
0
1
0
0
0
0
1
2
1
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
WNW
10
0.3
WNW
10
0.3
WNW
9
0.3
WNW
9
0.4
NNW
7
0.4
NNW
7
0.4
NNW
7
0.8
WSW
5
1.1
W
7
0.9
W
6
1.8
NW
8
1.8
NNW
7
1.1
NNW
6
0.4
WNW
9
1.3
NNW
6
1.2
NNW
10
1.1
NW
9
1
NW
9
1
NW
9
0.9
NW
8
0.8
NW
9
Wave Graph
Metric surfscale
Energy kJ
19
18
16
16
21
21
19
29
104
61
375
297
91
27
111
267
194
152
145
120
107
Wind (km/h)
5
S
10
WSW
10
ESE
15
S
10
SW
5
S
15
S
15
SW
10
SE
5
N
25
NW
25
N
20
N
30
NNW
15
NNE
5
NNE
15
NW
5
E
10
SSW
10
WNW
5
N
Wind State
cross-on
on
cross-off
cross-on
on
cross-on
cross-on
on
cross
cross-off
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross
glassy
on
cross-on
glassy
High Tide
9:56AM2.64m
10:14PM2.57m
11:01AM2.58m
11:26PM2.48m
12:10PM2.60m
00:40AM2.49m
1:11PM2.69m
1:41AM2.56m
2:01PM2.82m
2:28AM2.68m
2:42PM2.96m
3:07AM2.80m
3:19PM3.10m
3:41AM2.92m
Low Tide
4:03PM1.46m
4:34AM1.39m
5:18PM1.51m
5:42AM1.44m
6:32PM1.46m
6:46AM1.41m
7:30PM1.35m
7:38AM1.32m
8:17PM1.21m
8:21AM1.21m
8:56PM1.06m
8:59AM1.08m
9:31PM0.93m
clear
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:20
6:20
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:02
9:01
9:00
9:00
9:00
8:59
8:58
 mm
Temp °C
22
22
19
22
22
19
21
21
19
21
21
18
23
22
22
29
27
26
24
24
20
Feels °C
22
22
21
21
21
20
20
20
20
19
18
14
18
18
20
28
26
24
24
24
20
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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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