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Surf Forecasts:
Cabo de Sines surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 12 pm Sunday 17 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
17.0° 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 4PM is: 1.0m 8s primary swell from a Northwest direction and 0.3m 16s secondary swell from a Northwest direction, 0.2m 12s secondary swell from a West-northwest direction (forecast issued at 12:00pm May 17). The wind direction is predicted to be cross-shore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 3.5ft (1.1m) | 9s |
| Afternoon (17 May) | 3.5ft (1.0m) | 8s |
| Evening (17 May) | 2ft (0.6m) | 15s |
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. Very mild (max 19°C on Tue morning, min 13°C on Sun night). Winds decreasing (fresh winds from the NW on Sun afternoon, light winds from the NNE by Mon night). | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 9 | NW 8 | NW 8 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | WNW 16 | WNW 15 | WNW 14 | |
168 | 132 | 129 | 115 | 176 | 341 | 308 | 839 | 732 | 721 | 656 | 455 | 389 | 469 | 396 | 297 | 249 | 208 | 222 | 341 | 208 | 397 | 807 | 1997 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | off | off | off | |
High Tide | 3:43PM3.54m | 4:09AM3.37m | 4:29PM3.54m | 4:59AM3.26m | 5:18PM3.46m | 5:51AM3.11m | ||||||||||||||||||
Low Tide | 9:23AM0.55m | 9:52PM0.49m | 10:08AM0.60m | 10:41PM0.53m | 10:54AM0.72m | 11:32PM0.64m | ||||||||||||||||||
 |  | | |  | | | | | | | |  | | | | | | | | | | | | |
 | 6:24 | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:20 | — |
 | — | — | — | 8:39 | — | — | — | — | — | — | — | 8:40 | — | — | — | — | — | — | — | 8:40 | — | — | — | 8:42 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 16 | 16 | 15 | 15 | 14 | 13 | 13 | 14 | 15 | 16 | 15 | 15 | 14 | 14 | 14 | 16 | 19 | 19 | 19 | 19 | 18 | 17 | 18 |
11 | 12 | 11 | 9 | 10 | 10 | 9 | 10 | 11 | 11 | 12 | 11 | 11 | 12 | 12 | 13 | 15 | 17 | 16 | 15 | 16 | 16 | 15 | 16 | |
Swell 1 Height (m) Direction Period (s) | WNW 13 | WNW 12 | NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | WNW 14 | NW 10 | NW 10 | WNW 15 | WNW 14 |
 kJ | 17 | 14 | 41 | 115 | 176 | 341 | 308 | 839 | 732 | 721 | 656 | 455 | 389 | 469 | 396 | 297 | 249 | 208 | 222 | 41 | 208 | 235 | 807 | 1997 |
Swell 2 Height (m) Direction Period (s) | NW 18 | NW 16 | WNW 12 | WNW 11 | NW 11 | NW 10 | NW 10 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 15 | WNW 15 | SW 15 | NW 16 | WNW 16 | NW 10 | SW 15 |
| kJ | 12 | 11 | 14 | 12 | 30 | 17 | 35 | 12 | 12 | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 21 | 21 | 9 | 69 | 397 | 365 | 8 |
Swell 3 Height (m) Direction Period (s) | W 8 | W 8 | — | S 18 | SW 18 | WNW 11 | S 18 | S 18 | — | — | — | — | W 17 | — | W 16 | W 16 | W 15 | SW 16 | SW 15 | SW 15 | WNW 13 | NW 5 | SW 15 | — |
| kJ | 1 | 1 | — | 6 | 13 | 11 | 6 | 6 | — | — | — | — | 6 | — | 5 | 5 | 4 | 10 | 9 | 9 | 35 | 29 | 8 | — |
Wind waves Height (m) Direction Period (s) | NW 9 | NW 8 | NW 8 | NW 5 | NW 6 | NW 6 | NW 6 | NW 6 | NW 9 | — | — | NW 4 | NW 4 | NW 5 | — | — | — | — | NW 3 | NW 10 | NW 5 | — | — | — |
| kJ | 168 | 132 | 129 | 76 | 120 | 101 | 89 | 95 | 202 | — | — | 21 | 27 | 25 | — | — | — | — | 4 | 341 | 51 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 416 | 683 | 683 | 683 | 89 | 89 | 8 | 8 | 8 | 101 | 519 | 519 | 20 | 0 | 0 | 0 | 0 | 0 | 104 | 93 | 81 | 0 | 0 | 0 |
Best forecast wave conditions in Portugal - Alentejo | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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