Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 6 am 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
16.0°C
2.4° 

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 25 Sep 2026:

  • Best quality surf: Friday 25 Sep, 7PM (local time) - 7ft (2.1m), 14s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Thursday 1 Oct, 1PM (local time) - 11ft (3.5m), 14s period, WNW swell with 5,081 kJ wave energy.
  • Next surfable swell (1★+): Friday 25 Sep, 7PM (local time) - 7ft (2.1m), 14s 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 Friday (Sep 25) at 7PM. The primary swell is predicted to be 2.1m and 14s period with a secondary swell of 0.8m 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 3.5m 14s and forecast to arrive on Thursday (Oct 01) 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 1.0m 5s period and expected on Friday (Sep 25) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Fri 25th Sep)7ft (2.1m) 14s
Best Surf 7PM (Fri 25th Sep)7ft (2.1m) 14s
Most Powerful 1PM (Thu 1st Oct)11ft (3.5m) 14s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Warm (max 23°C on Sat morning, min 17°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 25mm), heaviest during Tue afternoon. Warm (max 20°C on Mon night, min 16°C on Wed night). Winds decreasing (strong winds from the SSE on Tue afternoon, calm by Tue night).

Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
!
!
2
3
3
2
3
3
2
1
0
0
!
3
!
!
!
!
!
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
WNW
18
1.7
WNW
15
2.4
NW
14
2.2
NW
13
1.9
NW
12
1.8
NW
12
1.7
NW
12
1.5
NW
11
1.5
NW
11
1.7
NW
11
1.9
NW
12
1.7
WNW
12
1.2
NW
11
2.5
SSW
8
3
SW
9
1.5
SSW
8
2.5
WNW
11
3
WNW
12
3.5
WNW
14
3.5
WNW
14
3
NW
14
Wave Graph
Metric surfscale
Energy kJ
768
1258
2390
1575
1082
851
765
544
515
728
897
731
354
673
1688
300
1374
2685
4600
4606
2923
Wind (km/h)
10
N
30
NNW
15
N
10
NNW
15
NW
10
NNW
10
NW
15
NW
10
N
5
SE
5
S
20
SE
40
S
40
SSE
5
S
5
S
10
W
5
ESE
0
E
10
NW
15
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
glassy
cross-on
cross
cross-on
cross-on
cross-on
glassy
cross-on
cross-off
glassy
cross
cross-off
High Tide
2:57PM3.37m
3:17AM3.33m
3:31PM3.50m
3:51AM3.47m
4:05PM3.57m
4:25AM3.55m
4:42PM3.56m
5:02AM3.55m
5:20PM3.47m
5:42AM3.47m
6:03PM3.29m
6:26AM3.31m
6:52PM3.06m
Low Tide
9:06PM0.59m
9:18AM0.59m
9:39PM0.46m
9:53AM0.47m
10:13PM0.39m
10:30AM0.42m
10:48PM0.40m
11:08AM0.46m
11:26PM0.50m
11:50AM0.59m
00:08AM0.68m
12:37PM0.79m
00:55AM0.92m
clear
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
rain showers
rain showers
rain showers
rain showers
light rain
mod rain
mod rain
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
—
—
7:26
—
—
7:26
—
—
7:28
—
—
7:28
—
—
7:30
—
—
7:31
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
7:28
—
—
7:25
—
—
7:24
—
—
7:22
—
—
7:21
—
—
7:19
—
—
7:17
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 mm
—
—
—
—
—
—
—
—
2
4
1
1
3
7
9
—
—
—
—
—
—
Temp °C
21
20
18
23
22
20
21
20
19
19
19
20
20
19
18
20
20
17
19
19
17
Feels °C
18
16
16
20
19
18
20
19
19
20
19
16
14
14
18
19
19
17
18
18
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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