Cabo de Sines surfForecast / Alentejo / Portugal

information circle16 Day Weather and Surf, issued 5 pm Tuesday 24 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
15.1° C
(Which is slightly cooler than normal)

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 Wednesday (Mar 25) at 3AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.4m and 4s. 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 1.5m 16s and forecast to arrive on Saturday (Mar 28) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Monday (Mar 30) at 10AM.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 25th Mar)3ft (0.9m) 11s
Best Surf12PM (Sat 28th Mar)4.5ft (1.3m) 18s
Most Powerful 9PM (Sat 28th Mar)5ft (1.5m) 16s

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 Thu afternoon, min 12°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sat afternoon, min 11°C on Sun night). Winds increasing (calm on Sat morning, fresh winds from the ENE by Sat night).

Tue
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
2
2
3
3
3
3
3
3
2
2
3
4
4
3
3
3
0
2
3
3
Swell
Height Map
Wave Height (m) & direction (?)
1
NW
0.7
NW
0.6
NW
1.2
NW
1.7
NW
1.6
NW
1.8
NW
1.6
NW
1.4
NW
1.4
NW
1.2
NW
1
NW
1.4
NW
1.2
NW
1.5
NW
1.5
NW
1.6
NW
1.3
NW
1.1
NW
0.9
NW
1.1
NW
Period(s) (?)111115141312111211111218171514131312121614
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2501191915989767478216664714973936711024674862744784463303416520
Wind
(km/h)
20
NNW
15
NE
10
NE
15
N
15
NE
20
NE
20
NE
15
NE
25
ENE
20
NNE
15
NNE
5
ESE
15
NNW
20
NE
35
ENE
25
NE
20
NE
35
ENE
20
ENE
15
E
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffcross-
off
offoffoffoffoffcross-
off
offglasscross-
off
offoffoffoffcross-
off
offcross-
off
cross-
off
High Tide
/ height (m)
6:19PM
2.99
6:58AM
2.72
7:30PM
2.80
8:27AM
2.53
9:04PM
2.72
10:11AM
2.54
10:38PM
2.82
11:31AM
2.70
11:48PM
3.01
12:27PM
2.90
12:39AM
3.21
1:09PM
3.08
1:22AM
3.35
Low Tide
/ height (m)
12:34AM
1.10
12:57PM
1.31
2:00AM
1.29
2:31PM
1.48
3:50AM
1.30
4:17PM
1.44
5:16AM
1.14
5:32PM
1.25
6:14AM
0.95
6:25PM
1.04
6:58AM
0.78
7:08PM
0.86
7:36AM
0.67
Tue
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Sunrise--6:31--6:30--6:28--6:26--6:26--6:24--6:22
Sunset6:50--6:51--6:52--6:52--6:53--6:54--6:55--
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C181518201718211716181615201816191714191719
Feels °C (?)1513151715141713101313121714913128151316
  • Map Icons:
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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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