Cabo de Sines surfForecast / Alentejo / Portugal

information circle48hr Weather and Surf, issued 6 am Monday 18 May 2026 WEST
Forecast update in hr  min  s Forecast update imminent
Cabo de Sines surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cabo de Sines sea temperature is
16.8° C
(Which is slightly cooler than normal)

How big are the waves at Cabo de Sines today?

The current surf forecast for Cabo de Sines at 2PM is: 1.5m 13s primary swell from a Northwest direction and 0.1m 17s secondary swell from a Southwest direction (forecast issued at 06:00am May 18). The wind direction is predicted to be cross-shore.

Time (WEST) & DateWave HeightWave Period
Morning (18 May)5ft (1.5m)13s
Afternoon (18 May)4.5ft (1.4m)12s
Evening (18 May)4.5ft (1.3m)12s

Table - waves today at Cabo de Sines. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed morning, min 14°C on Mon morning). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thu
21
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
Rating
(10 max)
1
2
2
1
1
1
1
2
2
2
2
1
0
0
1
3
4
4
4
3
2
2
4
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
NW
14
1.5
NW
13
1.5
NW
13
1.5
NW
13
1.4
NW
12
1.3
NW
12
1.3
NW
12
1.3
NW
12
1.3
NW
11
1.1
NW
11
1.1
NW
11
1
NW
10
1.1
NW
10
1.3
NW
10
1.1
NW
10
1.1
WNW
16
1.7
WNW
15
2.5
WNW
14
2.5
WNW
14
2.5
WNW
13
2.3
WNW
13
2.2
WNW
13
2
WNW
13
1.8
WNW
12
Wave Graph
Metric surfscale
Energy kJ
308
767
732
721
599
503
440
425
396
297
286
208
255
315
245
612
1279
2412
2245
2116
1830
1597
1211
967
Wind (km/h)
20
NNW
15
N
15
NNW
20
NW
25
NW
20
NW
20
NNW
15
NNW
10
N
10
N
10
N
15
NW
25
NW
30
NW
20
NNW
15
NNE
15
NNE
15
NE
10
NE
10
WNW
15
W
15
W
10
NNW
5
ENE
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
off
off
off
cross-on
cross-on
cross-on
cross-off
cross-off
High Tide
4:09AM3.37m
4:29PM3.54m
4:59AM3.26m
5:18PM3.46m
5:51AM3.11m
6:10PM3.33m
Low Tide
10:08AM0.60m
10:41PM0.53m
10:54AM0.72m
11:32PM0.64m
11:44AM0.88m
00:29AM0.80m
clear
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:22
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:40
8:40
8:42
8:43
Temp °C
13
13
14
15
15
15
15
14
14
14
16
18
18
18
19
17
17
17
22
26
24
22
20
21
9
10
11
11
10
11
12
12
13
13
15
16
15
14
16
15
15
15
21
24
22
20
19
20
Swell 1
Height (m)
Direction
Period (s)
0.9
NW
14
1.5
NW
13
1.5
NW
13
1.5
NW
13
1.4
NW
12
1.3
NW
12
1.3
NW
12
1.3
NW
12
1.3
NW
11
1.1
NW
11
1.1
NW
11
1
NW
10
1.1
NW
10
0.3
WNW
14
1.1
NW
10
1.4
NW
10
1.7
WNW
15
2.5
WNW
14
2.5
WNW
14
2.5
WNW
13
2.3
WNW
13
2.2
WNW
13
2
WNW
13
1.8
WNW
12
Energy kJ
308
767
732
721
599
503
440
425
396
297
286
208
255
41
245
373
1279
2412
2245
2116
1830
1597
1211
967
Swell 2
Height (m)
Direction
Period (s)
0.4
NW
10
0.1
SW
18
0.1
SW
18
0.1
SW
17
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.2
WNW
15
0.2
WNW
15
0.1
SW
15
0.4
WNW
16
1.1
WNW
16
1.4
NW
10
0.1
SW
15
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
14
Energy kJ
35
12
12
12
11
10
10
10
10
10
10
21
21
9
104
612
341
8
8
8
8
8
8
8
Swell 3
Height (m)
Direction
Period (s)
0.3
NNW
8
0.1
S
18
0.1
SW
18
0.1
W
17
0.1
W
16
0.1
W
16
0.1
W
15
0.1
SW
16
0.1
SW
15
0.1
W
18
0.3
WNW
13
0.1
SW
15
0.1
SW
15
Energy kJ
11
6
12
6
5
5
4
10
9
6
35
9
8
Wind waves
Height (m)
Direction
Period (s)
1
NW
6
1.1
NW
6
0.7
NW
4
0.6
NW
4
1.3
NW
10
1
NW
4
Energy kJ
65
88
16
14
315
39
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
2
2
2
3
2
2
2
2
2
2
2
2
3
4
4
4
4
4
4
4
3
Distance (km)
8
8
8
101
519
519
89
0
0
0
0
89
89
89
20
0
0
0
0
67
67
67
0
0
Best forecast wave conditions in Portugal - Alentejo
Rating
(10 max)
2
3
3
3
2
2
2
2
3
4
4
4
4
3
Best forecast wave conditions in Portugal
Rating
(10 max)
4
4
3
3
4
5
5
4
3
2
2
2
2
3
4
4
5
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
4
6
5
4
4
5
5
4
4
4
4
4
4
4
4
4
5
5
4
5
5
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cabo de Sines surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest