Viana do Castelo surf break

Viana do Castelo surfForecast / Douro & Minho / Portugal

information circle16 Day Weather and Surf, issued 12 am Monday 20 Apr 2026 WEST
Forecast update in hr  min  s Forecast update imminent
Viana do Castelo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Viana do Castelo sea temperature is
13.8° C
(Which is slightly cooler than normal)

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 (Apr 20) at 4AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.6m and 10s. 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 2.2m 13s and forecast to arrive on Wednesday (Apr 22) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Saturday (Apr 25) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 20th Apr)2.5ft (0.7m) 9s
Best Surf 4AM (Wed 22nd Apr)7ft (2.2m) 12s
Most Powerful10AM (Wed 22nd Apr)7ft (2.2m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Tue afternoon. Warm (max 21°C on Mon night, min 12°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the ESE by Mon night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Thu morning, min 10°C on Fri night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sun
26
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
0
1
0
0
4
!
1
2
!
2
3
3
1
2
2
0
1
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
WNW
0.7
NNW
0.5
W
0.4
WNW
1
WNW
1.5
WNW
1.9
WNW
2.2
WNW
1.7
WNW
1.4
W
2.2
W
2
W
2
W
1.8
W
1.6
W
1.4
W
1.2
W
1
W
1
W
0.8
W
0.8
W
Period(s) (?)1081091413121313111111111010999998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1026248284377451062176095844211919178906504943252301451579690
Wind
(km/h)
0
ESE
5
SE
10
NW
10
ESE
15
SSE
15
S
5
W
10
SSE
10
WSW
10
SE
0
NNW
15
NW
5
NNW
5
NW
15
NW
15
N
15
NNW
25
NNW
10
NNE
5
NNW
15
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscrosscross-
off
cross-
on
cross-
on
glasscross-
on
oncrossglasscrosscross-
off
glasscrosscross-
off
cross-
off
cross-
off
cross-
off
glasscross
High Tide
/ height (m)
5:36AM
3.42
5:58PM
3.50
6:25AM
3.21
6:49PM
3.29
7:22AM
2.96
7:47PM
3.06
8:31AM
2.73
9:00PM
2.87
9:57AM
2.61
10:26PM
2.78
11:27AM
2.64
11:48PM
2.82
12:38PM
2.76
Low Tide
/ height (m)
11:22PM
0.43
11:39AM
0.54
12:10AM
0.60
12:26PM
0.77
1:04AM
0.82
1:21PM
1.04
2:09AM
1.05
2:30PM
1.28
3:33AM
1.20
4:02PM
1.41
5:05AM
1.21
5:33PM
1.38
6:19AM
1.11
6:41PM
1.25
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sun
26
Sunrise-6:48--6:47--6:45--6:43--6:41--6:41--6:39-
Sunset--8:20--8:21--8:22--8:23--8:24--8:25--8:27
part cloud
cloud
part cloud
cloud
cloud
light rain
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
-----1---------------
Temp. °C141818212017141517131616141616131616121616
Feels °C (?)13171615171513131512131312141410121181413
  • Map Icons:
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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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