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 — and sunset is at 05:17 PM.

Days 1–4 Weather Summary

Heavy rain (total 25mm), heaviest during Thu night. Cool air temperatures (max 15°C on Thu afternoon, min 12°C on Thu night). Winds decreasing (strong winds from the N on Thu night, light winds from the WNW by Sat morning).

Days 5–7 Weather Summary

Light rain (total 9mm), mostly falling on Sun afternoon. Cool air temperatures (max 16°C on Mon night, min 13°C on Sun afternoon). Winds decreasing (strong winds from the WNW on Sun afternoon, moderate winds from the W by Mon afternoon).

Days 8–10 Weather Summary

Mostly dry. Very mild (max 14°C on Wed afternoon, min 6°C on Fri night). Winds decreasing (near gales from the NNW on Wed afternoon, light winds from the NE by Fri night).

Days 11–13 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Very mild (max 15°C on Tue morning, min 7°C on Sat night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
AM
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
10:35AM2.95m
Low Tide
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) 
4
WNW
20
4.5
WNW
17
4
WNW
15
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
5.5
WNW
15
5
WNW
15
4.5
WNW
15
3.5
NW
14
3.5
NW
13
3.5
NW
12
4
NW
12
4
NW
12
4
NW
11
4
NW
10
3.5
NNW
10
3
NNW
10
2.2
NNW
9
1.9
NNW
10
1.7
NNW
9
1.5
NNW
9
1.7
WNW
15
1.6
WNW
14
1.5
WNW
13
1.3
WNW
12
1.1
WNW
12
1
WNW
13
0.9
WNW
12
0.9
WNW
12
1
W
12
1.7
WNW
12
cloud
heavy rain
rain showers
clear
part cloud
part cloud
light rain
light rain
light rain
rain showers
rain showers
part cloud
cloud
cloud
rain showers
part cloud
clear
rain showers
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
cloud
rain showers
light rain
cloudy
heavy rain
rain shwrs
clear
some clouds
some clouds
light rain
light rain
light rain
rain shwrs
rain shwrs
some clouds
cloudy
cloudy
rain shwrs
some clouds
clear
rain shwrs
clear
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
some clouds
clear
clear
clear
clear
clear
cloudy
rain shwrs
light rain
 km/h
25
S
35
S
35
N
40
N
30
NNW
20
WNW
30
WSW
25
WNW
35
WNW
40
WNW
45
NW
30
NW
25
WNW
30
WSW
35
W
35
WNW
35
NW
45
NNW
50
NNW
45
N
40
N
35
N
20
NNE
20
NE
15
NE
10
NE
20
ENE
25
NE
20
NE
25
ENE
20
ENE
15
ENE
15
E
10
SSE
20
S
20
SSW
 mm 
16
1
3
3
2
3
2
3
1
1
1
max°C
15
15
13
14
13
15
14
14
13
14
14
15
15
16
15
15
14
14
14
13
13
13
12
11
12
10
8
10
9
11
13
12
11
12
14
15
Moonrise
7:37
8:31
9:17
9:56
10:29
10:58
11:23
11:47
12:10
12:35
1:03
1:36
Moonset
3:47
4:33
5:27
6:27
7:31
8:36
9:42
10:47
11:53
1:00
2:11
3:25
Sunrise
7:50
7:50
7:50
7:52
7:52
7:52
7:52
7:54
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): 5 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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