Viana do Castelo Surf Break

Lat Long: 41.69° N 8.85° W

Viana do Castelo Surf Forecast and Surf Report

Issued: 12 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Viana do Castelo sea temperature is
15.4°C
3.1° 

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 21 Sep 2026:

  • Best quality surf: Wednesday 23 Sep, 4AM (local time) - 5ft (1.5m), 15s period, WNW swell with glassy winds.
  • Most powerful swell: Saturday 26 Sep, 1AM (local time) - 6.5ft (2.0m), 15s period, NW swell with 1,672 kJ wave energy.
  • Next surfable swell (1★+): Monday 21 Sep, 7PM (local time) - 4.5ft (1.3m), 11s period with NW 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 Monday (Sep 21) at 7PM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.1m and 12s. 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 2.0m 15s and forecast to arrive on Saturday (Sep 26) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Sunday (Sep 27) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Mon 21st Sep)4.5ft (1.3m) 11s
Best Surf 4AM (Wed 23rd Sep)5ft (1.5m) 15s
Most Powerful 1AM (Sat 26th Sep)6.5ft (2.0m) 15s

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


Short Range Forecast

Mostly dry. Warm (max 31°C on Mon morning, min 19°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Thu morning, min 15°C on Thu night). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
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
1
2
2
1
3
4
4
2
2
2
1
2
2
4
4
3
3
3
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
NW
12
1.3
NW
11
1.3
NW
11
1.2
NW
12
1.1
NW
11
1.2
WNW
16
2
WNW
14
1.9
WNW
14
1.6
WNW
13
1.5
WNW
12
1.4
NW
12
1.2
NW
11
1
NW
10
1
NW
16
2
NW
15
1.9
NW
13
1.9
NW
13
1.6
NW
12
1.6
NW
11
1.7
NW
11
1.3
NW
11
Wave Graph
Metric surfscale
Energy kJ
614
461
445
389
273
714
1601
1280
812
669
568
347
212
515
1672
1308
1094
747
589
683
414
Wind (km/h)
5
E
15
NW
10
NNE
5
NNE
15
NW
10
NNW
5
SE
5
NW
5
SE
10
SSE
10
SW
5
SSE
0
SW
15
NW
10
N
5
NNW
15
NW
10
N
10
N
20
NW
10
N
Wind State
glassy
cross
off
glassy
cross-off
cross-off
glassy
cross-off
cross
cross-on
on
cross
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
12:03PM2.55m
00:51AM2.49m
1:03PM2.75m
1:36AM2.70m
1:47PM2.97m
2:12AM2.92m
2:23PM3.18m
2:45AM3.14m
2:57PM3.37m
3:17AM3.33m
3:31PM3.50m
3:51AM3.47m
4:05PM3.57m
Low Tide
6:36PM1.41m
6:47AM1.44m
7:24PM1.20m
7:32AM1.22m
8:01PM0.98m
8:09AM0.98m
8:34PM0.77m
8:44AM0.77m
9:06PM0.59m
9:18AM0.59m
9:39PM0.46m
9:53AM0.47m
10:13PM0.39m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:22
7:22
7:24
7:24
7:26
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:35
7:32
7:31
7:30
7:28
7:25
7:24
 mm
Temp °C
31
28
27
29
29
23
27
26
23
23
22
17
20
19
16
19
20
18
21
20
17
Feels °C
28
25
24
26
25
20
26
25
22
22
22
18
20
19
15
17
18
17
19
17
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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