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Surf Forecasts:
Cabo de Sines surfForecast / Alentejo / Portugal
16 Day Weather and Surf, issued 12 pm Tuesday 26 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
17.4° 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 Tuesday (May 26) at 10PM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.4m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cabo de Sines in the next 16 days are 2.4m 11s and forecast to arrive on Tuesday (Jun 02) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (May 31) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 26th May) | 4.5ft (1.4m) 12s |
| Best Surf | 10PM (Tue 26th May) | 4.5ft (1.4m) 12s |
| Most Powerful | 4PM (Tue 2nd Jun) | 8ft (2.4m) 11s |
Table - best surf conditions forecast for Cabo de Sines over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 29°C on Tue morning, min 17°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 15°C on Sat night). Winds increasing (light winds from the N on Fri morning, fresh winds from the NW by Sat afternoon). | ||||||||||||||||||||
Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | WNW 10 | NW 10 | NW 11 | NW 10 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | NW 9 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | |
558 | 531 | 414 | 273 | 224 | 171 | 148 | 229 | 79 | 145 | 164 | 149 | 132 | 300 | 624 | 686 | 531 | 540 | 592 | 814 | 241 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | |
High Tide | 12:21PM2.82m | 00:37AM2.94m | 1:07PM2.93m | 1:23AM2.97m | 1:48PM3.02m | 2:04AM2.98m | 2:25PM3.10m | 2:42AM2.99m | 2:59PM3.15m | 3:18AM2.98m | 3:33PM3.17m | 3:53AM2.95m | 4:07PM3.16m | ||||||||
Low Tide | 6:26PM1.18m | 6:53AM1.03m | 7:13PM1.10m | 7:32AM0.99m | 7:54PM1.02m | 8:07AM0.96m | 8:31PM0.96m | 8:40AM0.95m | 9:06PM0.93m | 9:12AM0.95m | 9:40PM0.92m | 9:44AM0.98m | 10:14PM0.93m | ||||||||
 |  |  |  | | | | | | | | | | | | | | | | |  | |
 | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — |
 | — | 8:46 | — | — | 8:47 | — | — | 8:49 | — | — | 8:49 | — | — | 8:50 | — | — | 8:51 | — | — | 8:51 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 29 | 27 | 26 | 29 | 25 | 21 | 26 | 22 | 21 | 22 | 22 | 20 | 21 | 22 | 19 | 22 | 24 | 20 | 20 | 20 | 18 |
27 | 24 | 24 | 27 | 22 | 20 | 23 | 18 | 20 | 20 | 18 | 18 | 19 | 17 | 15 | 19 | 19 | 16 | 17 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | WNW 10 | NW 10 | SSW 15 | NW 10 | NW 6 | WNW 11 | WNW 10 | WNW 10 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | SW 13 | WNW 10 |
 kJ | 558 | 531 | 414 | 273 | 224 | 171 | 148 | 23 | 79 | 31 | 164 | 149 | 132 | 141 | 624 | 686 | 531 | 540 | 592 | 7 | 241 |
Swell 2 Height (m) Direction Period (s) | SW 18 | S 12 | S 4 | S 4 | SSW 4 | S 4 | SSW 4 | W 16 | WNW 13 | WNW 12 | NW 9 | SSW 15 | NW 6 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | — | NW 13 |
| kJ | 12 | 11 | 9 | 3 | 4 | 3 | 1 | 5 | 60 | 145 | 40 | 21 | 56 | 20 | 8 | 7 | 7 | 7 | 7 | — | 175 |
Swell 3 Height (m) Direction Period (s) | S 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SSW 15 | W 16 | SSW 16 | NW 9 | SSW 15 | NW 9 | SSW 14 | SSW 14 | SW 14 | — | — | — | — | — | S 12 |
| kJ | 3 | 12 | 11 | 10 | 10 | 9 | 22 | 5 | 24 | 43 | 21 | 3 | 21 | 20 | 8 | — | — | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NW 4 | — | NW 11 | NW 5 | — | NW 6 | NW 6 | — | NW 9 | NW 6 | — | NW 5 | NW 6 | NNW 5 | WNW 11 | NW 5 |
| kJ | — | — | — | — | — | 6 | — | 229 | 33 | — | 40 | 106 | — | 300 | 132 | — | 103 | 59 | 45 | 814 | 65 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 19 | 0 | 0 | 67 | 0 | 0 | 89 | 0 | 0 | 89 | 0 | 8 | 159 | 8 | 0 | 159 | 89 | 89 | 278 | 641 |
Best forecast wave conditions in Portugal - Alentejo | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cabo de Sines 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 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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