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.
Surf Forecasts:
Supertubos surfForecast / Peniche / Portugal
48hr Weather and Surf, issued 5 am Tuesday 16 Dec 2025 WETForecast update in hr min s Forecast update imminent
Supertubos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Supertubos sea temperature is
15.9° C
(Which is normal for this time of year)How big are the waves at Supertubos today?
The current surf forecast for Supertubos at 10AM is: 5.5m 10s primary swell from a Northwest direction (forecast issued at 05:00am December 16). The wind direction is predicted to be cross-offshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 18ft (5.5m) | 10s |
| Afternoon (16 Dec) | 18ft (5.5m) | 10s |
| Evening (16 Dec) | 16ft (5.0m) | 14s |
Table - waves today at Supertubos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 9 | 10 | 10 | 10 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 24 | 22 | 21 | 19 | 19 | 18 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5964 | 3356 | 5721 | 6630 | 6489 | 11886 | 10155 | 7948 | 7184 | 5139 | 4063 | 3307 | 2699 | 2154 | 1863 | 1629 | 1629 | 4376 | 10753 | 19045 | 17600 | 18119 | 16090 | 14607 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | glass | cross | cross | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 12:09AM 2.79 | 12:26PM 2.79 | 12:50AM 2.90 | 1:08PM 2.83 | 1:27AM 3.00 | 1:47PM 2.86 | ||||||||||||||||||
Low Tide / height (m) | 6:19AM 1.14 | 6:35PM 1.05 | 7:01AM 1.04 | 7:12PM 1.00 | 7:40AM 0.95 | 7:46PM 0.95 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - |
| Sunset | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - |
 |  |  |  |  |  | | | | |  | | | |  | | | | | | |  | |  | |
Rain (mm) | 3 | 4 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 7 |
| Temp. °C | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 14 | 15 | 15 | 15 | 14 |
| Feels °C (?) | 3 | 2 | 2 | 2 | 3 | 4 | 5 | 6 | 6 | 8 | 9 | 9 | 10 | 11 | 12 | 11 | 9 | 9 | 7 | 10 | 10 | 10 | 10 | 11 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
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 Supertubos 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.
Nearest