Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 6 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
16.1° C
2.0° 

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 8 Jul 2026:

  • Best quality surf: Thursday 9 Jul, 1AM (local time) - 2.5ft (0.7m), 10s period, WNW swell with glassy winds.
  • Most powerful swell: Saturday 11 Jul, 10PM (local time) - 2.5ft (0.8m), 10s period, WNW swell with 117 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 1AM (local time) - 2.5ft (0.7m), 10s 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 Thursday (Jul 09) at 1AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.9m and 5s. 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 0.8m 10s and forecast to arrive on Saturday (Jul 11) at 10PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Wednesday (Jul 08) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 9th Jul)2.5ft (0.7m) 10s
Best Surf 1AM (Thu 9th Jul)2.5ft (0.7m) 10s
Most Powerful10PM (Sat 11th Jul)2.5ft (0.8m) 10s

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


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

Honestly, I’m looking at a pretty flat, quiet picture for the whole 16-day run. There’s no real standout session on the cards, and the surf is going to be very small and mostly weak for the entire period. The combined energy of the swells never gets above moderate, hitting a max of just 149 (moderate energy) on Saturday the 11th, but that comes with poor conditions.

The first real chance to get wet comes on Friday, July 10th. The morning is the pick of the whole outlook, with a tiny 3ft swell from the WNW and glassy conditions. The water temp is sitting at 61°, which is a solid 4° colder than usual for this time of year, so you’ll want a good wetsuit. It’s just surfable, nothing to write home about, but at least it’s clean. The afternoon gets a light cross-shore wind, so it’s less appealing.

The next window is Monday morning, July 13th. Again, we’re looking at glassy conditions, but the swell drops to a tiny 2ft from the NW. The energy is weak (54). It’s a small, clean wave for a longboard or a foiler, but it’s not going to get your heart pumping.

Tuesday morning, July 14th, offers a similar story: glassy, 2ft from the WNW, and weak energy (56). After that, the wind starts to blow stronger and the surf gets smaller and more confused. From the 15th onwards, we’re stuck with a lot of strong cross-offshore winds from the NNW, especially in the afternoons, blowing up to 18-22 mph. The swell is tiny, mostly under 2ft. While the cross-off wind cleans the surface, the waves are just too small for anything meaningful.

There is a brief moment on Friday, July 17th morning, with a 2ft WNW swell and cross-off wind, but the period is a short 6 seconds, and the energy is still weak (51). The next morning, the 18th, has a very long-period 1ft swell (11 seconds) but that’s just a knee-high dribble.

Viana do Castelo is a river mouth, fairly consistent, and exposed to the west swell. But for this entire forecast, the energy is just not there. There are no standout days. The crowds are often around here, but with waves this small, most folks will be on the beach. The best advice is to keep an eye on the forecasts; a blank run like this can change quickly.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

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

Wed
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
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
0
0
1
1
0
1
0
0
1
0
0
1
1
0
0
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)
0.6
WNW
10
0.7
WNW
10
0.7
WNW
9
0.7
WNW
9
0.7
WNW
9
0.8
WNW
9
0.8
WNW
9
0.4
NW
12
0.6
NW
11
0.6
NW
10
0.7
W
9
0.7
NW
9
0.7
NW
8
0.6
NW
8
0.5
NW
8
0.4
WSW
6
0.4
WSW
6
0.5
WNW
7
0.3
WNW
10
0.4
WNW
10
0.4
W
9
Wave Graph
Metric surfscale
Energy kJ
80
85
75
75
73
101
88
53
92
80
79
74
69
54
34
15
12
26
20
31
25
Wind (km/h)
20
NNW
5
NNW
5
SW
15
WNW
5
N
5
SW
10
WNW
5
WNW
5
SW
10
WNW
5
NNW
10
S
10
WSW
5
NE
5
SSW
10
W
5
NNE
5
SW
10
SW
10
SSE
15
SSE
Wind State
cross-off
glassy
on
cross-on
glassy
glassy
cross
glassy
on
cross-on
glassy
cross-on
on
glassy
glassy
cross-on
cross-off
glassy
on
cross
cross-on
High Tide
9:58PM2.90m
10:44AM2.91m
11:11PM2.87m
11:56AM3.00m
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
Low Tide
4:20AM1.04m
5:00PM1.16m
5:32AM1.02m
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
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:11
6:11
6:11
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:12
9:10
9:10
9:09
9:09
9:08
9:08
9:07
 mm
Temp °C
20
16
20
20
17
21
20
17
21
20
17
20
20
17
20
21
18
21
21
19
21
Feels °C
18
15
20
20
18
21
21
18
21
20
19
19
20
18
20
21
19
21
21
20
20
  • Map Icons:
  • Break
  • 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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