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Surf Forecasts:
Cabo de Sines surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 6 am Wednesday 20 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 slightly cooler than normal)How big are the waves at Cabo de Sines today?
The current surf forecast for Cabo de Sines at 11AM is: 2.5m 14s primary swell from a West-northwest direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 06:00am May 20). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 8ft (2.5m) | 14s |
| Afternoon (20 May) | 7.5ft (2.3m) | 13s |
| Evening (20 May) | 7ft (2.1m) | 13s |
Table - waves today at Cabo de Sines. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 20°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 14 | NW 14 | NW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | |
1340 | 2519 | 2344 | 2116 | 1830 | 1597 | 1320 | 967 | 864 | 722 | 636 | 575 | 458 | 419 | 478 | 469 | 515 | 604 | 604 | 572 | 572 | 551 | 494 | 503 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | cross-off | cross-on | cross-on | cross | cross-off | cross-off | cross-off | glassy | cross | cross | cross-off | glassy | cross | cross-off | glassy | glassy | glassy | cross-on | cross-on | cross-on | glassy | |
High Tide | 5:51AM3.11m | 6:10PM3.33m | 6:49AM2.93m | 7:09PM3.17m | 7:53AM2.77m | 8:14PM3.03m | ||||||||||||||||||
Low Tide | 11:44AM0.88m | 00:29AM0.80m | 12:40PM1.06m | 1:34AM0.96m | 1:46PM1.23m | |||||||||||||||||||
 |  | | | | | | | | | | | | | | | | | | | | |  |  | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:18 |
 | — | — | — | — | — | 8:42 | — | — | — | — | — | — | — | 8:43 | — | — | — | — | — | — | — | 8:44 | — | 8:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 15 | 20 | 26 | 24 | 21 | 20 | 21 | 21 | 21 | 24 | 27 | 26 | 27 | 26 | 24 | 23 | 22 | 25 | 29 | 29 | 22 | 20 | 22 |
14 | 13 | 18 | 25 | 21 | 19 | 19 | 20 | 18 | 19 | 23 | 24 | 22 | 25 | 25 | 23 | 20 | 20 | 23 | 27 | 25 | 20 | 19 | 22 | |
Swell 1 Height (m) Direction Period (s) | NW 14 | NW 14 | NW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 |
 kJ | 1340 | 2519 | 2344 | 2116 | 1830 | 1597 | 1320 | 967 | 864 | 722 | 636 | 575 | 458 | 419 | 478 | 469 | 515 | 604 | 604 | 572 | 572 | 551 | 494 | 503 |
Swell 2 Height (m) Direction Period (s) | NW 10 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | S 13 | S 13 | S 13 | SSW 13 | SSW 13 | SSW 13 | S 14 | S 5 | S 5 | S 5 | S 5 | S 4 |
| kJ | 296 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 14 | 14 | 13 | 17 | 17 | 17 | 16 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | — | — | — | — | — | — | — | — | — | — | S 16 | SW 16 | SW 16 | S 16 | S 16 | SW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SSW 14 |
| kJ | 8 | — | — | — | — | — | — | — | — | — | — | — | 5 | 10 | 10 | 5 | 5 | 7 | 8 | 8 | 8 | 8 | 8 | 20 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 78 | 67 | 8 | 0 | 0 | 0 | 0 | 48 | 52 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 48 | 67 | 8 | 0 |
Best forecast wave conditions in Portugal - Alentejo | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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