Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 12 pm 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
20.0° C
1.1° 

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 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 4PM (local time) - 7ft (2.2m), 7s period, NW swell with cross-shore winds.
  • Most powerful swell: Saturday 15 Aug, 7PM (local time) - 8ft (2.5m), 7s period, NW swell with 735 kJ wave energy.
  • Next surfable swell (1★+): Saturday 8 Aug, 10PM (local time) - 3ft (0.9m), 7s period with W 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 (Aug 08) at 10PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.4m and 11s. 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 2.5m 7s and forecast to arrive on Saturday (Aug 15) 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 1.5m 6s period and expected on Thursday (Aug 13) at 7PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sat 8th Aug)3ft (0.9m) 7s
Best Surf 4PM (Sat 15th Aug)7ft (2.2m) 7s
Most Powerful 7PM (Sat 15th Aug)8ft (2.5m) 7s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Sat morning, min 17°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Wed morning, min 17°C on Tue night). Wind will be generally light.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
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
1
1
0
1
1
0
1
0
0
1
1
0
2
2
1
1
1
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)
0.2
W
9
0.6
W
8
0.9
W
7
0.9
W
7
0.6
NNW
10
0.6
NW
9
0.7
NW
8
0.7
NW
8
0.9
NW
9
0.6
NW
8
0.6
NNW
10
0.7
W
10
0.9
W
10
1
W
10
1
W
10
1.1
WNW
11
1.1
WNW
10
1.1
WNW
10
0.9
WNW
9
1.5
NW
9
0.9
WNW
8
Wave Graph
Metric surfscale
Energy kJ
6
40
80
81
66
50
60
61
132
53
65
92
148
179
183
292
250
205
116
343
103
Wind (km/h)
10
S
10
WSW
5
SSE
5
SW
15
NW
10
NNE
5
NNW
20
NW
5
N
5
WNW
15
NW
5
ENE
5
WSW
15
NW
10
NNE
10
NW
25
NW
15
NNW
10
NNW
20
NW
5
NNE
Wind State
cross-on
on
glassy
glassy
cross
cross-off
cross-off
cross
cross-off
cross-on
cross
glassy
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
off
High Tide
11:39AM2.88m
00:21AM2.76m
12:59PM3.03m
1:36AM2.92m
2:03PM3.24m
2:36AM3.11m
2:56PM3.43m
3:26AM3.28m
3:43PM3.58m
4:10AM3.39m
4:25PM3.65m
4:51AM3.42m
5:05PM3.63m
Low Tide
6:07PM1.17m
6:33AM1.11m
7:22PM0.98m
7:41AM0.95m
8:22PM0.76m
8:37AM0.77m
9:12PM0.57m
9:25AM0.63m
9:56PM0.44m
10:08AM0.55m
10:37PM0.39m
10:48AM0.53m
11:16PM0.42m
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:37
6:37
6:39
6:39
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:45
8:44
8:42
8:40
8:39
8:37
8:37
 mm
Temp °C
24
23
20
22
22
19
22
22
18
22
22
18
23
22
19
23
23
20
25
23
20
Feels °C
24
24
23
22
22
20
21
21
18
22
22
18
24
22
19
22
21
19
24
22
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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