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Surf Forecasts:
Cabo de Sines surfForecast / Alentejo / Portugal
16 Day Weather and Surf, issued 12 pm Sunday 26 Apr 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
16.6° C
(Which is normal for this time of year)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 Sunday (Apr 26) at 10PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.9m and 5s. 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 1.3m 12s and forecast to arrive on Wednesday (Apr 29) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Tuesday (Apr 28) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 26th Apr) | 2.5ft (0.8m) 8s |
| Best Surf | 4AM (Fri 1st May) | 3.5ft (1.1m) 15s |
| Most Powerful | 4PM (Wed 29th Apr) | 4.5ft (1.3m) 12s |
Table - best surf conditions forecast for Cabo de Sines over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 22°C on Mon morning, min 15°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 1 | Saturday 2 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
WNW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 | W 10 | WNW 15 | WNW 14 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | NW 16 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | |
90 | 68 | 163 | 120 | 59 | 55 | 123 | 210 | 329 | 350 | 511 | 229 | 198 | 322 | 505 | 459 | 447 | 290 | 234 | 172 | 110 | |
Wind (km/h) | |||||||||||||||||||||
glassy | cross | off | cross-off | cross-on | cross | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | |
High Tide | 12:05PM2.73m | 00:20AM3.00m | 12:58PM2.89m | 1:12AM3.11m | 1:41PM3.03m | 1:55AM3.19m | 2:18PM3.15m | 2:32AM3.23m | 2:52PM3.22m | 3:06AM3.22m | 3:23PM3.26m | 3:38AM3.18m | 3:54PM3.26m | ||||||||
Low Tide | 6:08PM1.24m | 6:46AM0.98m | 7:00PM1.08m | 7:30AM0.87m | 7:43PM0.95m | 8:06AM0.80m | 8:20PM0.85m | 8:38AM0.77m | 8:54PM0.80m | 9:07AM0.77m | 9:26PM0.78m | 9:37AM0.80m | 9:57PM0.81m | ||||||||
 |  |  | | | |  |  |  | | |  | | | | | | | | | | |
 | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | 8:21 | — | — | 8:22 | — | — | 8:22 | — | — | 8:22 | — | — | 8:23 | — | — | 8:24 | — | — | 8:25 | — |
— | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 20 | 19 | 22 | 20 | 18 | 19 | 17 | 15 | 16 | 17 | 16 | 18 | 18 | 16 | 18 | 17 | 16 | 17 | 17 | 16 |
19 | 17 | 19 | 21 | 18 | 18 | 18 | 15 | 13 | 13 | 14 | 14 | 16 | 16 | 15 | 16 | 13 | 12 | 14 | 13 | 12 | |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 | W 10 | WNW 8 | WNW 9 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 |
 kJ | 90 | 68 | 163 | 120 | 59 | 55 | 37 | 119 | 329 | 350 | 511 | 229 | 198 | 153 | 505 | 459 | 447 | 290 | 234 | 172 | 110 |
Swell 2 Height (m) Direction Period (s) | NW 6 | — | W 14 | W 12 | NW 7 | NW 8 | WNW 15 | WNW 14 | NW 9 | W 8 | NNW 9 | WSW 6 | WSW 6 | NW 16 | WNW 10 | WNW 11 | WNW 12 | WNW 11 | W 10 | W 10 | W 9 |
| kJ | 19 | — | 4 | 12 | 29 | 16 | 123 | 210 | 64 | 64 | 17 | 52 | 33 | 322 | 139 | 153 | 179 | 156 | 100 | 96 | 60 |
Swell 3 Height (m) Direction Period (s) | — | — | W 14 | — | WNW 11 | W 7 | W 10 | NNW 8 | W 9 | NNW 7 | — | NNW 9 | NW 18 | W 5 | WSW 5 | — | — | S 14 | NW 5 | — | NW 4 |
| kJ | — | — | 4 | — | 25 | 10 | 50 | 26 | 40 | 10 | — | 16 | 155 | 21 | 8 | — | — | 4 | 6 | — | 8 |
Wind waves Height (m) Direction Period (s) | — | NW 5 | — | — | — | NW 5 | — | — | — | — | W 6 | — | — | — | — | — | NW 4 | NW 4 | — | NW 5 | — |
| kJ | — | 18 | — | — | — | 29 | — | — | — | — | 42 | — | — | — | — | — | 3 | 15 | — | 7 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 93 | 0 | 0 | 92 | 8 | 21 | 19 | 67 | 62 | 162 | 19 | 19 | 19 | 13 | 0 | 99 | 8 | 8 | 101 | 0 |
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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