Viana do Castelo surf break

Viana do Castelo surfForecast / Douro & Minho / Portugal

information circle12 Day Weather and Surf, issued 5 am Thursday 12 Mar 2026 WET
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
13.0° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 12) at 12PM. The primary swell is predicted to be 3.0m and 13s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Viana do Castelo in the next 12 days are 4.0m 17s and forecast to arrive on Wednesday (Mar 18) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Mar 15) at 6PM.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 12th Mar)10ft (3.0m) 13s
Best Surf12PM (Thu 12th Mar)10ft (3.0m) 13s
Most Powerful 3PM (Wed 18th Mar)13ft (4.0m) 17s

Table - best surf conditions forecast for Viana do Castelo over the next 12 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 9mm), mostly falling on Fri afternoon. Very mild (max 13°C on Thu morning, min 7°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Tue morning, min 9°C on Sun morning). Wind will be generally light.

Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
!
!
!
2
!
!
!
!
!
!
!
!
4
!
!
!
!
!
!
!
!
Swell
Height Map
Wave Height (m) & direction (?)
3
WNW
2.5
WNW
2.1
WNW
2.1
NW
3.5
NW
4
NW
4
NW
3.5
NW
3
NW
2.5
NW
2.3
NW
2.3
NW
1.1
NW
3
NW
3
NW
2.4
NW
2.5
NW
2.5
WNW
3
WNW
4
WNW
4
WNW
Period(s) (?)131312111515151414131313211816141614131716
Wave
Graph
(?)Metric surfscale
Energy kJ (?)323321851236106555497803681854133398210316711651101257184705223332602816293193857950
Wind
(km/h)
0
ENE
10
WNW
5
ESE
15
SSE
15
W
20
NW
20
NNW
25
NNW
15
NNE
15
N
25
NNW
15
NNE
10
E
10
W
10
SE
10
SE
10
SW
10
E
10
ESE
0
E
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscrossglasscross-
on
cross-
on
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
on
cross-
off
crossoncross-
off
cross-
off
glasscross-
off
High Tide
/ height (m)
9:33PM
2.45
10:39AM
2.31
11:12PM
2.55
12:00PM
2.48
12:17AM
2.77
12:49PM
2.71
1:02AM
3.01
1:28PM
2.96
1:41AM
3.25
2:04PM
3.20
2:18AM
3.46
2:39PM
3.40
2:54AM
3.60
Low Tide
/ height (m)
2:52PM
1.65
4:20AM
1.59
4:44PM
1.61
5:45AM
1.42
5:57PM
1.42
6:37AM
1.19
6:46PM
1.18
7:17AM
0.94
7:26PM
0.92
7:52AM
0.71
8:03PM
0.69
8:27AM
0.51
8:40PM
0.50
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Sunrise6:52--6:50--6:48--6:48--6:46--6:43--6:43--
Sunset-6:37--6:38--6:39--6:40--6:42--6:43--6:44-
clear
clear
part cloud
light rain
light rain
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
Rain (mm)
---243---------------
Temp. °C131312131312121210131512161713181813191914
Feels °C (?)11111111118765898141511151511161811
  • 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 12 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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