Viana do Castelo Sea Conditions and Tide Table

Viana do Castelo Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:46 AM and sunset is at 05:04 PM.

Days 1–3 Weather Summary

Heavy rain (total 38mm), heaviest during Fri night. Cool air temperatures (max 16°C on Fri morning, min 13°C on Fri morning). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 24mm), heaviest during Tue night. Cool air temperatures (max 17°C on Tue morning, min 10°C on Wed night). Winds decreasing (strong winds from the S on Tue afternoon, light winds from the E by Wed night).

Days 7–9 Weather Summary

Heavy rain (total 62mm), heaviest during Fri morning. Very mild (max 13°C on Thu afternoon, min 10°C on Thu morning). Winds increasing (calm on Fri afternoon, fresh winds from the W by Sat afternoon).

Days 10–12 Weather Summary

Moderate rain (total 16mm), heaviest on Sun morning. Very mild (max 13°C on Sun morning, min 8°C on Sun night). Wind will be generally light.

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
3:02PM3.42m
3:24AM3.65m
3:51PM3.35m
4:11AM3.57m
4:41PM3.22m
5:00AM3.43m
5:32PM3.06m
5:50AM3.26m
6:27PM2.89m
6:43AM3.07m
7:26PM2.74m
7:41AM2.89m
8:30PM2.63m
8:44AM2.76m
9:37PM2.60m
9:50AM2.69m
10:41PM2.63m
10:52AM2.67m
11:36PM2.70m
11:47AM2.70m
00:21AM2.80m
12:34PM2.75m
1:00AM2.91m
Low Tide
8:49AM0.42m
9:03PM0.48m
9:37AM0.44m
9:50PM0.58m
10:26AM0.53m
10:37PM0.73m
11:16AM0.67m
11:26PM0.92m
12:08PM0.85m
00:19AM1.12m
1:06PM1.02m
1:18AM1.30m
2:09PM1.16m
2:26AM1.42m
3:16PM1.24m
3:39AM1.47m
4:20PM1.26m
4:46AM1.44m
5:15PM1.23m
5:42AM1.36m
6:01PM1.19m
6:28AM1.26m
6:40PM1.13m
Wave
height (m) 
direction
period (s) 
3.5
NW
14
3.5
WNW
16
4
WNW
15
4.5
WNW
15
4.5
WNW
15
3.5
WNW
15
3
WNW
14
3.5
WNW
13
3.5
W
12
3.5
W
12
4.5
WNW
19
5
WNW
17
5
WNW
16
5
WNW
15
3.5
WNW
14
3
WNW
13
3
WNW
13
3
WNW
13
2.4
WNW
13
2
WNW
12
2.3
WNW
12
3.5
WNW
19
4
WNW
18
4
WNW
17
5.5
WNW
18
6.5
WNW
17
5
WNW
15
4
WNW
13
3.5
WNW
13
3
NW
12
2.4
NW
11
2.3
NW
11
1.8
NW
10
1.6
NW
10
1.4
NW
10
1.8
WNW
15
light rain
light rain
heavy rain
mod rain
light rain
light rain
cloud
light rain
part cloud
part cloud
cloud
cloud
cloud
light rain
heavy rain
clear
clear
clear
part cloud
cloud
heavy rain
heavy rain
part cloud
heavy rain
mod rain
thunderstorm
rain showers
light rain
rain showers
rain showers
part cloud
clear
part cloud
clear
clear
clear
light rain
light rain
heavy rain
mod rain
light rain
light rain
cloudy
light rain
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
heavy rain
clear
clear
clear
some clouds
cloudy
heavy rain
heavy rain
some clouds
heavy rain
mod rain
risk tstorm
rain shwrs
light rain
rain shwrs
rain shwrs
some clouds
clear
some clouds
clear
clear
clear
 km/h
10
S
25
WSW
25
SW
20
SW
25
SSW
25
SSE
25
SSE
25
S
25
SSE
25
SSE
35
S
35
SSE
35
SSE
45
S
15
NNW
15
NNW
20
N
10
E
10
SSE
15
S
20
S
15
SW
5
W
35
SSE
35
SW
35
W
25
W
25
W
10
WSW
5
N
5
E
5
NNW
10
NE
5
ENE
5
NW
10
SE
 mm 
4
4
16
6
4
3
1
5
19
17
13
13
6
5
8
4
4
8
max°C
16
16
16
15
16
16
15
16
15
16
16
16
17
17
14
14
14
11
12
13
12
12
13
12
12
12
12
13
12
10
11
11
9
11
12
10
Moonrise
5:18
6:29
7:46
9:04
10:17
11:26
12:32
1:35
2:37
3:40
4:43
Moonset
8:39
9:47
10:41
11:21
11:52
12:17
12:39
12:59
1:17
1:37
1:59
2:24
Sunrise
7:46
7:47
7:48
7:48
7:50
7:50
7:52
7:52
7:52
7:54
7:54
7:54
Sunset
5:04
5:04
5:04
5:04
5:04
5:04
5:04
5:05
5:05
5:05
5:05
5:05
Today's sea temperature in Viana do Castelo is
15.7° C
(Statistics for 05 Dec 1981-2005 – mean: 15.3 max: 16.4 min: 14.3°C)
Issued (local time): 5 am Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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