Cascais Sea Conditions and Tide Table

Cascais 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 07:50 AM and sunset is at 05:17 PM.

Days 1–3 Weather Summary

Moderate rain (total 18mm), heaviest on Thu night. Cool air temperatures (max 15°C on Thu morning, min 11°C on Sat night). Mainly fresh winds.

Days 4–6 Weather Summary

Moderate rain (total 12mm), heaviest on Sun morning. Cool air temperatures (max 15°C on Mon morning, min 11°C on Sun morning). Winds decreasing (near gales from the WNW on Sun night, moderate winds from the W by Mon afternoon).

Days 7–9 Weather Summary

Light rain (total 8mm), mostly falling on Wed morning. Very mild (max 14°C on Wed morning, min 10°C on Fri night). Winds decreasing (strong winds from the NW on Wed night, light winds from the NNW by Fri night).

Days 10–12 Weather Summary

Heavy rain (total 20mm), heaviest during Mon night. Very mild (max 14°C on Mon afternoon, min 9°C on Sat morning). Winds decreasing (strong winds from the ESE on Mon morning, calm by Mon night).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
1:39PM2.93m
1:54AM3.12m
2:15PM2.95m
2:29AM3.17m
2:51PM2.97m
3:04AM3.20m
3:26PM2.97m
3:39AM3.20m
4:02PM2.95m
4:14AM3.18m
4:39PM2.91m
4:52AM3.14m
5:19PM2.86m
5:33AM3.09m
6:03PM2.81m
6:20AM3.03m
6:55PM2.77m
7:14AM2.97m
7:54PM2.75m
8:16AM2.93m
9:01PM2.78m
9:25AM2.91m
10:09PM2.87m
Low Tide
7:30AM1.07m
7:37PM1.07m
8:05AM1.00m
8:11PM1.04m
8:40AM0.96m
8:45PM1.03m
9:15AM0.94m
9:19PM1.03m
9:49AM0.95m
9:53PM1.05m
10:26AM0.98m
10:30PM1.09m
11:04AM1.02m
11:10PM1.14m
11:48AM1.07m
11:55PM1.20m
12:37PM1.12m
00:48AM1.27m
1:35PM1.17m
1:52AM1.32m
2:41PM1.18m
3:07AM1.31m
3:50PM1.15m
4:22AM1.22m
Wave
height (m) 
direction
period (s) 
3
WNW
22
4
WNW
20
4.5
WNW
17
4
WNW
16
4
WNW
16
4
WNW
16
3.5
WNW
15
3
WNW
14
3.5
WNW
14
4.5
WNW
15
4.5
WNW
15
6
WNW
15
5
WNW
15
4.5
WNW
15
3.5
NW
14
3.5
NW
13
3.5
NW
12
3.5
NW
12
3.5
WNW
13
3.5
NW
12
3.5
NW
10
3.5
NW
11
3
NW
10
2.5
NNW
8
1.9
NNW
8
1.5
NNW
8
1.3
WNW
11
1.1
WNW
12
1.1
WNW
11
1.4
WNW
13
1.3
WNW
12
1.2
NW
11
1.2
NW
10
1.9
SSW
8
2.3
S
7
2.1
SW
8
part cloud
cloud
heavy rain
rain showers
clear
part cloud
part cloud
rain showers
rain showers
light rain
light rain
rain showers
part cloud
part cloud
light rain
rain showers
part cloud
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
clear
rain showers
rain showers
clear
part cloud
light rain
light rain
rain showers
rain showers
some clouds
cloudy
heavy rain
rain shwrs
clear
some clouds
some clouds
rain shwrs
rain shwrs
light rain
light rain
rain shwrs
some clouds
some clouds
light rain
rain shwrs
some clouds
rain shwrs
rain shwrs
rain shwrs
rain shwrs
some clouds
some clouds
some clouds
some clouds
cloudy
rain shwrs
clear
rain shwrs
rain shwrs
clear
some clouds
light rain
light rain
rain shwrs
rain shwrs
 km/h
15
S
30
S
20
WSW
30
N
35
N
30
NNW
15
WNW
30
WSW
30
NW
30
WNW
35
W
50
NW
35
NW
25
WNW
30
WSW
40
WNW
35
NW
35
NW
35
NW
40
NNW
40
NW
40
N
35
N
35
NNW
20
NNW
20
NW
10
NNW
10
ENE
10
W
10
N
15
ESE
15
ESE
25
ESE
50
ESE
40
SE
5
E
 mm 
11
1
3
3
3
2
1
2
3
1
1
1
3
3
1
1
2
1
2
13
max°C
15
15
15
13
14
13
15
15
14
13
14
14
15
15
15
15
14
14
14
13
14
14
14
14
13
13
12
11
12
12
11
12
12
11
14
13
Moonrise
6:39
7:37
8:31
9:17
9:56
10:29
10:58
11:23
11:47
12:10
12:35
1:03
Moonset
3:47
4:33
5:27
6:27
7:31
8:36
9:42
10:47
11:53
1:00
2:11
Sunrise
7:50
7:50
7:50
7:50
7:52
7:52
7:52
7:52
7:54
7:54
7:54
7:54
Sunset
5:17
5:17
5:19
5:19
5:20
5:20
5:21
5:21
5:22
5:22
5:22
5:23
Today's sea temperature in Cascais is
15.9° C
(Statistics for 18 Dec 1981-2005 – mean: 16.5 max: 17.4 min: 15.8°C)
Issued (local time): 11 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest