Viseu Sea Conditions and Tide Table

Viseu 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 — and sunset is at 06:06 PM.

Days 1–4 Weather Summary

Light rain (total 8mm), mostly falling on Sun morning. Very warm air temperatures (max 30°C on Fri morning, min 25°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Moderate rain (total 10mm), heaviest on Sun night. Very warm air temperatures (max 30°C on Tue morning, min 22°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 26mm), heaviest during Fri night. Warm (max 29°C on Thu afternoon, min 23°C on Fri night). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 5mm), mostly falling on Sun morning. Warm (max 30°C on Mon morning, min 25°C on Sat night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
AM
PM
Wave Height Map
High Tide
5:34AM4.74m
5:43PM5.06m
6:13AM4.83m
6:23PM5.15m
6:52AM4.89m
7:02PM5.19m
7:31AM4.91m
7:41PM5.19m
8:10AM4.90m
8:22PM5.14m
8:52AM4.87m
9:05PM5.05m
9:36AM4.82m
9:53PM4.92m
10:26AM4.76m
10:46PM4.79m
11:20AM4.72m
11:46PM4.67m
12:20PM4.71m
00:52AM4.61m
1:23PM4.78m
2:00AM4.63m
2:26PM4.92m
Low Tide
11:34PM0.67m
11:46AM0.96m
00:11AM0.56m
12:22PM0.89m
00:47AM0.51m
12:58PM0.85m
1:23AM0.51m
1:34PM0.86m
2:00AM0.55m
2:12PM0.91m
2:38AM0.64m
2:52PM0.98m
3:19AM0.76m
3:37PM1.08m
4:05AM0.91m
4:29PM1.18m
4:58AM1.07m
5:29PM1.24m
6:00AM1.20m
6:38PM1.22m
7:09AM1.24m
7:52PM1.08m
8:19AM1.17m
Wave
height (m) 
direction
period (s) 
0.6
NNE
10
0.7
NNE
10
0.7
NNE
10
0.6
NNE
10
0.6
NNE
10
0.6
NNE
10
0.5
NNE
10
0.5
NNE
10
0.4
NNE
10
0.5
NNE
10
0.5
NNE
9
0.5
NNE
9
0.5
NNE
9
0.5
NNE
9
0.6
ENE
3
0.5
NNE
9
0.4
NNE
9
0.5
NNE
9
0.5
ENE
3
0.5
N
14
0.5
ENE
3
0.6
NE
3
0.6
ENE
3
0.5
ENE
3
0.5
ENE
3
0.7
NE
3
0.6
N
14
0.7
N
13
0.6
N
12
0.6
N
12
0.7
N
12
0.6
N
11
0.7
ENE
4
0.7
ENE
4
0.7
ENE
4
0.6
ENE
3
clear
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
thunderstorm
rain showers
part cloud
part cloud
cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
clear
part cloud
clear
some clouds
clear
some clouds
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
rain shwrs
some clouds
risk tstorm
rain shwrs
some clouds
some clouds
cloudy
risk tstorm
risk tstorm
some clouds
risk tstorm
risk tstorm
rain shwrs
risk tstorm
risk tstorm
rain shwrs
risk tstorm
risk tstorm
some clouds
risk tstorm
risk tstorm
some clouds
risk tstorm
some clouds
some clouds
clear
some clouds
 km/h
10
E
15
ENE
20
ENE
10
ENE
15
ENE
15
ENE
5
NE
5
E
5
ENE
5
NE
5
E
10
ENE
10
SSE
10
SE
15
ENE
5
ESE
10
ESE
15
ENE
5
ESE
10
E
15
ENE
10
ENE
10
E
10
E
5
E
10
E
15
ENE
10
ENE
15
ENE
15
E
10
ENE
15
E
20
E
10
E
15
E
20
ENE
 mm 
1
1
1
4
1
4
1
1
3
1
5
1
3
4
1
10
1
1
1
2
2
max°C
26
30
30
26
29
29
26
26
27
26
28
27
24
30
30
26
28
29
26
28
29
26
26
27
26
29
28
26
29
29
26
30
30
26
30
30
Moonrise
5:22
6:15
7:07
7:58
8:47
9:35
10:20
11:05
11:50
12:38
1:29
2:24
Moonset
5:53
6:46
7:37
8:27
9:14
9:59
10:43
11:27
12:12
12:59
1:52
Sunrise
5:54
5:56
5:56
5:56
5:56
5:58
5:58
5:58
5:58
6:00
6:00
6:01
Sunset
6:06
6:07
6:07
6:07
6:07
6:08
6:08
6:09
6:09
6:10
6:10
6:12
6:12
Today's sea temperature in Viseu is
28.3° C
(Statistics for 18 Dec 1981-2005 – mean: 27.8 max: 28.6 min: 27.0°C)
Issued (local time): 8 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest