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Cabo de Sines surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 12 am Monday 11 May 2026 WESTForecast 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
16.7° C
(Which is normal for this time of year)How big are the waves at Cabo de Sines today?
The current surf forecast for Cabo de Sines at 4AM is: 2.5m 9s primary swell from a West-southwest direction and 0.6m 12s secondary swell from a North-northwest direction, 0.1m 19s secondary swell from a Southwest direction (forecast issued at 12:00am May 11). The wind direction is predicted to be onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 7ft (2.1m) | 8s |
| Afternoon (11 May) | 5.5ft (1.7m) | 8s |
| Evening (11 May) | 3ft (0.9m) | 12s |
Table - waves today at Cabo de Sines. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Mon morning. Very mild (max 17°C on Mon morning, min 15°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun night, calm by Wed morning). | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NNW 12 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 5 | WSW 5 | |
1256 | 977 | 665 | 512 | 383 | 282 | 243 | 183 | 158 | 124 | 114 | 93 | 87 | 80 | 64 | 64 | 50 | 37 | 33 | 25 | 17 | 17 | 15 | 15 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | glassy | glassy | glassy | glassy | cross-on | cross-on | cross | cross-off | |
High Tide | 10:11PM2.68m | 11:00AM2.57m | 11:17PM2.81m | 11:57AM2.75m | 00:13AM2.97m | 12:46PM2.96m | ||||||||||||||||||
Low Tide | 4:43AM1.32m | 4:59PM1.39m | 5:41AM1.15m | 5:58PM1.21m | 6:30AM0.97m | 6:48PM1.00m | ||||||||||||||||||
 |  |  | | |  | |  |  |  |  | | | | | | | | | | | | | | |
 | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:34 | — | — | — | — | — | — | — | 8:35 | — | — | — | — | — | — | — | 8:36 | — |
1 | 1 | 1 | 2 | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 15 |
10 | 11 | 11 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 16 | 16 | 15 | 16 | 15 | 16 | 15 | 15 | 15 | 13 | |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NNW 12 | NW 12 | NW 12 | NNW 12 | NW 12 | NNW 12 | NNW 11 | WSW 7 | WSW 7 | WSW 7 | NNW 10 | NNW 10 | NNW 10 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 5 | WSW 5 |
 kJ | 99 | 94 | 147 | 181 | 255 | 282 | 243 | 163 | 158 | 124 | 114 | 71 | 65 | 37 | 64 | 64 | 50 | 37 | 33 | 25 | 17 | 17 | 15 | 15 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | WNW 9 | WNW 9 | NW 11 | NNW 11 | NNW 11 | SSW 16 | SSW 16 | SSW 16 | NNW 9 | NNW 9 | NW 9 | NNW 9 | NNW 8 | NW 7 | NNW 8 | NW 6 | NW 6 | NW 7 |
| kJ | 15 | 14 | 13 | 12 | 12 | 12 | 16 | 8 | 123 | 107 | 78 | 25 | 25 | 24 | 34 | 32 | 20 | 16 | 14 | 7 | 13 | 6 | 5 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 13 | S 13 | SW 17 | SW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | — | — | SSW 15 | SSW 15 | SSW 14 | NW 7 | NW 7 | NNW 8 | NW 6 | NNW 8 | NNW 7 | NNW 9 |
| kJ | — | — | — | — | 4 | 3 | 12 | 11 | 25 | 24 | 25 | 25 | — | — | 23 | 21 | 21 | 9 | 7 | 14 | 5 | 6 | 5 | 8 |
Wind waves Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | — | — | — | WSW 6 | WSW 6 | WSW 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1256 | 977 | 665 | 512 | 383 | 277 | 202 | 183 | — | — | — | 93 | 87 | 80 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 321 | 19 | 19 | 19 | 526 | 526 | 141 | 19 | 19 | 19 | 19 | 162 | 162 | 378 | 19 | 19 | 0 | 0 | 0 | 13 | 929 | 948 | 734 | 424 |
Best forecast wave conditions in Portugal - Alentejo | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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