Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
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Troia surfForecast / Alentejo / Portugal
12 Day Weather and Surf, issued 5 pm Friday 12 Dec 2025 WETForecast update in hr min s Forecast update imminent
Troia surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Troia sea temperature is
16.3° C
(Which is slightly cooler than normal)Best Forecast Surf Conditions for Troia this week:
The most powerful waves expected at Troia in the next 12 days are 1.4m 5s and forecast to arrive on Monday (Dec 15) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 13s period and expected on Tuesday (Dec 16) at 3PM.
| Wave Type | Time (WET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Mon 15th Dec) | 4.5ft (1.4m) 5s |
Table - best surf conditions forecast for Troia over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 13mm), heaviest on Fri afternoon. Very mild (max 17°C on Sat afternoon, min 10°C on Sun morning). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Mon afternoon. Very mild (max 15°C on Wed afternoon, min 10°C on Wed morning). Winds decreasing (strong winds from the N on Tue morning, light winds from the SE by Thu morning). | ||||||||||||||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 5 | 18 | 17 | 16 | 15 | 12 | 13 | 14 | 14 | 4 | 5 | 12 | 13 | 14 | 14 | 13 | 13 | 20 | 18 | 17 | 16 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 25 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 12 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | glass | on | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross | cross- on | cross- on | cross- off | ||
High Tide / height (m) | 9:03PM 2.05 | 9:22AM 2.21 | 10:07PM 2.09 | 10:25AM 2.18 | 11:02PM 2.16 | 11:20AM 2.20 | 11:49PM 2.26 | 12:08PM 2.25 | 12:31AM 2.37 | 12:51PM 2.31 | 1:09AM 2.47 | 1:30PM 2.37 | 1:46AM 2.55 | ||||||||||
Low Tide / height (m) | 3:02AM 0.91 | 3:50PM 0.78 | 4:11AM 0.90 | 4:45PM 0.76 | 5:10AM 0.83 | 5:33PM 0.72 | 5:59AM 0.74 | 6:15PM 0.67 | 6:42AM 0.63 | 6:53PM 0.60 | 7:20AM 0.54 | 7:30PM 0.54 | 7:57AM 0.46 | ||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||
| Sunrise | - | - | 7:43 | - | - | 7:43 | - | - | 7:45 | - | - | 7:45 | - | - | 7:46 | - | - | 7:47 | - | - | 7:47 | ||
| Sunset | 5:14 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | ||
 |  |  |  |  | | |  |  |  | | | | | | | | | | | | |||
Rain (mm) | 9 | 4 | - | - | - | - | - | - | - | 3 | 2 | - | - | - | - | - | - | - | - | - | 1 | ||
| Temp. °C | 13 | 13 | 15 | 17 | 13 | 14 | 16 | 13 | 15 | 14 | 13 | 14 | 14 | 12 | 13 | 15 | 14 | 14 | 15 | 15 | 13 | ||
| Feels °C (?) | 10 | 10 | 11 | 14 | 9 | 10 | 13 | 11 | 13 | 10 | 10 | 6 | 5 | 6 | 8 | 11 | 11 | 12 | 13 | 12 | 11 | ||
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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 Troia 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.
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Information about the Troia Surf forecast
The above surf forecast table for Troia provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Troia can be found by selecting the local surf guide option on the grey menu. Our Troia 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 (Troia) 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 Troia 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.
Troia is 9 km (6 miles) from Setubal. If you plan a holiday in Portugal - Alentejo, look for hotels and other accommodation in Setubal. Setubal has rooms for a wide range of budgets as well as car hire and transport links.
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