Praia dos Aivados surfForecast / Alentejo / Portugal

information circle12 Day Weather and Surf, issued 6 pm Sunday 17 Aug 2025 WEST
Forecast update in hr  min  s Forecast update imminent
Praia dos Aivados surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Praia dos Aivados sea temperature is
20.3° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Praia dos Aivados this week:

The surf forecast for Praia dos Aivados over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 23) at 7AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 0.8m and 9s. Another secondary swell of 0.1m and 16s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Praia dos Aivados in the next 12 days are 0.9m 26s and forecast to arrive on Monday (Aug 25) at 1AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 23rd Aug)4.5ft (1.4m) 7s
Best Surf 1AM (Mon 25th Aug)3ft (0.9m) 26s
Most Powerful 1AM (Mon 25th Aug)3ft (0.9m) 26s

Table - best surf conditions forecast for Praia dos Aivados over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 28°C on Sun afternoon, min 17°C on Mon night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Fri morning, min 17°C on Thu night). Winds decreasing (fresh winds from the NW on Wed afternoon, calm by Fri night).

Sun
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.3
NW
1.5
NW
1.1
NW
1.3
NW
1.4
NW
1.3
NW
1.5
NW
1.4
NW
1.4
NW
2
NW
1.9
NW
1.6
NW
1.8
NW
1.7
NNW
1
WNW
0.9
WNW
1.6
NW
1.3
NW
1.4
NW
1.4
NW
1
NW
Period(s) (?)96656666667777111177966
Wave
Graph
(?)Metric surfscale
Energy (?)25519510491118107139131148329374266337393353309374249320262234
Wind
(km/h)
20
NW
15
N
15
N
25
NW
15
NNW
20
NNW
30
NW
20
NNW
20
NNW
35
NW
20
NNW
20
NNW
30
NW
15
NNW
10
N
25
NW
10
NW
5
W
20
WNW
5
WNW
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
ononcross-
on
oncross-
on
cross-
on
oncross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
crosscrossglassglass
High Tide
/ height (m)
10:20PM
2.13
11:00AM
2.24
11:50PM
2.15
12:19PM
2.37
1:01AM
2.28
1:21PM
2.56
1:55AM
2.44
2:11PM
2.75
2:39AM
2.57
2:53PM
2.90
3:18AM
2.67
3:31PM
2.98
3:54AM
2.71
Low Tide
/ height (m)
4:32AM
0.87
5:31PM
0.76
6:00AM
0.81
6:49PM
0.60
7:06AM
0.66
7:46PM
0.42
7:57AM
0.49
8:32PM
0.26
8:39AM
0.34
9:11PM
0.15
9:16AM
0.24
9:47PM
0.10
9:51AM
0.19
Sun
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunrise--6:52--6:52--6:54--6:54--6:56--6:56--6:56
Sunset8:25--8:24--8:22--8:22--8:21--8:19--8:17--
clearclearpart cloudpart cloudclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclearclear
Rain (mm)
---------------------
Temp. °C282224242122211922222023221926231824231825
Feels °C (?)241922211819171619171720181724211824221924
  • 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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Eyeball surf reportRecent Eyeball Surf Reports for Alentejo

  1. weather stationWind Update The wind is still cross-on at Praia dos Aivados (moderate winds from the NNW at Sines/Montes Chaos 18 km from Praia dos Aivados). A 1.7m windswell from the NW

    Praia dos Aivados
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18 km away, 2 h 1 min ago

25 km/h
NNW
0.0
20.3
Air / Water (°C)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Praia dos Aivados 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.


Information about the Praia dos Aivados Surf forecast

The above surf forecast table for Praia dos Aivados provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia dos Aivados can be found by selecting the local surf guide option on the grey menu. Our Praia dos Aivados 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 (Praia dos Aivados) 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 Praia dos Aivados 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.

Praia dos Aivados is 19 km (12 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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