Cabo de Sines surfForecast / Alentejo / Portugal

information circle16 Day Weather and Surf, issued 5 pm Saturday 28 Mar 2026 WET
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
15.6° C
(Which is normal for this time of year)

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 Sunday (Mar 29) at 12AM. The primary swell is predicted to be 1.6m and 15s period with a secondary swell of 1.3m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cabo de Sines in the next 16 days are 2.0m 14s and forecast to arrive on Sunday (Apr 05) at 1AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Apr 02) at 10PM.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sun 29th Mar)5ft (1.6m) 15s
Best Surf12AM (Sun 29th Mar)5ft (1.6m) 15s
Most Powerful 1AM (Sun 5th Apr)6.5ft (2.0m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 21°C on Sat afternoon, min 9°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Wed afternoon, min 12°C on Tue night). Wind will be generally light.

Sat
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
3
4
3
2
3
2
3
3
4
4
4
2
2
2
2
0
2
2
0
2
3
Swell
Height Map
Wave Height (m) & direction (?)
1.4
NW
1.6
NW
1.6
NW
1.7
NW
1.6
NW
1.4
NW
1.2
NW
1
NW
1.3
NW
1.2
NW
1.2
NW
1.4
NW
1.4
NW
1.1
NW
1.1
NW
1.1
NW
1.2
NW
0.9
NW
0.9
NW
0.9
NW
1.2
NW
Period(s) (?)16151413121111161418161414131212711101413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)10781020898991754488347502641871710802725411330314135166148346471
Wind
(km/h)
20
N
25
NE
25
NE
25
NNE
15
NE
20
ENE
15
NNE
15
NE
15
NE
15
NNW
15
NNE
20
ENE
20
NNW
10
NNE
15
NNE
20
NW
15
NNE
15
N
20
NW
15
NNE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffcross-
off
offcross-
off
cross-
off
offoffcross-
off
offcross-
off
cross-
off
offcross-
off
crosscross-
off
cross-
off
crosscross-
off
off
High Tide
/ height (m)
11:48PM
3.01
12:27PM
2.90
12:39AM
3.21
1:09PM
3.08
1:22AM
3.35
1:46PM
3.22
1:59AM
3.43
2:19PM
3.30
2:33AM
3.44
2:51PM
3.34
3:05AM
3.39
3:21PM
3.32
3:36AM
3.29
Low Tide
/ height (m)
5:32PM
1.25
6:14AM
0.95
6:25PM
1.04
6:58AM
0.78
7:08PM
0.86
7:36AM
0.67
7:45PM
0.73
8:08AM
0.62
8:18PM
0.66
8:39AM
0.61
8:50PM
0.65
9:07AM
0.66
9:21PM
0.70
9:35AM
0.75
Sat
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Sunrise--6:26--6:24--6:22--6:20--6:20--6:18--6:16
Sunset6:53--6:54--6:55--6:57--6:58--6:58--6:59--
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C211814181613171717191918201918181716191622
Feels °C (?)1613812118151414161715161615161513151221
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  • 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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