Cabo de Sines Surf Break

Lat Long: 37.95° N 8.88° W

Cabo de Sines Surf Forecast and Surf Report

Issued: 12 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cabo de Sines sea temperature is
19.9° C
1.1° 

Cabo de Sines surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cabo de Sines surf forecast from 12 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 1AM (local time) - 4.5ft (1.4m), 9s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 15 Aug, 10PM (local time) - 7ft (2.1m), 8s period, NW swell with 640 kJ wave energy.
  • Next surfable swell (1★+): Thursday 13 Aug, 1AM (local time) - 4.5ft (1.4m), 9s period with WNW swell.

Best Forecast Surf Conditions for Cabo de Sines this week:

The surf forecast for Cabo de Sines over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 1AM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cabo de Sines in the next 16 days are 2.1m 8s and forecast to arrive on Saturday (Aug 15) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Thursday (Aug 13) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 13th Aug)4.5ft (1.4m) 9s
Best Surf 1AM (Thu 13th Aug)4.5ft (1.4m) 9s
Most Powerful10PM (Sat 15th Aug)7ft (2.1m) 8s

Table - best surf conditions forecast for Cabo de Sines over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 26°C on Thu morning, min 19°C on Wed night). Winds increasing (light winds from the NE on Wed night, fresh winds from the NW by Fri afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Mon morning, min 19°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, calm by Sun night).

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
1
0
1
2
0
1
1
0
2
1
0
2
2
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
WNW
9
0.8
WNW
10
1.4
WNW
9
0.9
WNW
10
0.8
WNW
10
1
WNW
10
1.1
NW
9
1.5
NW
9
1.6
NW
8
1.6
NW
8
1.9
NW
8
1.9
NW
9
1.7
NW
9
1.5
NW
9
1.7
NW
9
1.4
NW
9
1.2
NW
9
0.9
NW
8
0.9
NW
8
0.9
NW
9
0.8
NW
9
Wave Graph
Metric surfscale
Energy kJ
64
125
334
163
123
179
216
351
333
319
481
542
461
343
450
335
230
118
120
129
91
Wind (km/h)
10
N
25
NW
10
N
10
N
25
NW
15
N
15
NNW
30
NW
20
NNW
25
NNW
35
NW
20
NNW
5
NW
15
W
5
S
5
SSE
20
W
5
WSW
10
SW
15
WSW
5
SSE
Wind State
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross
cross-on
glassy
glassy
cross-on
glassy
on
cross-on
glassy
High Tide
3:12PM3.57m
3:40AM3.31m
3:55PM3.66m
4:21AM3.35m
4:36PM3.65m
5:00AM3.33m
5:16PM3.56m
5:39AM3.24m
5:55PM3.38m
6:17AM3.10m
6:34PM3.16m
6:57AM2.94m
7:15PM2.91m
Low Tide
9:27PM0.49m
9:36AM0.60m
10:09PM0.45m
10:17AM0.56m
10:48PM0.49m
10:56AM0.61m
11:26PM0.60m
11:34AM0.72m
00:03AM0.76m
12:13PM0.89m
00:40AM0.96m
12:54PM1.10m
1:19AM1.18m
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:48
6:48
6:50
6:50
6:50
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:32
8:30
8:30
8:29
8:28
8:25
8:24
 mm
1
Temp °C
25
25
23
26
26
23
23
24
21
22
21
20
23
23
21
27
24
23
25
25
24
Feels °C
24
22
22
24
23
22
22
20
18
20
17
18
23
23
23
26
23
24
25
25
26
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Cabo de Sines Surf forecast

The above surf forecast table for Cabo de Sines provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cabo de Sines can be found by selecting the local surf guide option on the grey menu. Our Cabo de Sines surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cabo de Sines) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cabo de Sines may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Cabo de Sines is 2 km (1 miles) from Sines. If you plan a holiday in Portugal - Alentejo, look for hotels and other accommodation in Sines. Sines has rooms for a wide range of budgets as well as car hire and transport links.

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