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 11 pm Friday 12 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
15.6° C
(Which is slightly cooler than normal)How big are the waves at Supertubos today?
The current surf forecast for Supertubos at 4AM is: 5.0m 18s primary swell from a Northwest direction (forecast issued at 11:00pm December 12). The wind direction is predicted to be offshore and the swell rating is 9.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 15ft (4.5m) | 17s |
| Afternoon (13 Dec) | 13ft (4.0m) | 16s |
| Evening (13 Dec) | 11ft (3.5m) | 15s |
Table - waves today at Supertubos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 18550 | 17007 | 15560 | 13931 | 11719 | 9131 | 6984 | 6080 | 4829 | 3619 | 3240 | 2686 | 1982 | 1847 | 1730 | 1862 | 2065 | 2223 | 2042 | 1904 | 1777 | 1684 | 1479 | 1249 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | cross- off | off | off | off | off | off | cross- off | off | off | off | cross- off | off | off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | 9:24PM 2.55 | 9:41AM 2.76 | 10:27PM 2.59 | 10:44AM 2.74 | 11:23PM 2.68 | 11:39AM 2.76 | ||||||||||||||||||
Low Tide / height (m) | 3:25AM 1.35 | 4:14PM 1.17 | 4:33AM 1.31 | 5:10PM 1.15 | 5:31AM 1.24 | 5:56PM 1.11 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:14 | - | - | - | - | - | - | - | 5:14 | - | - | - | - | - | - | - | 5:14 | - |
 | |  | |  | | |  | | | | | |  | | |  | | | | | |  | | |
Rain (mm) | 3 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 |
| Temp. °C | 12 | 12 | 13 | 14 | 13 | 15 | 16 | 16 | 15 | 15 | 14 | 12 | 12 | 15 | 15 | 15 | 14 | 13 | 12 | 11 | 11 | 13 | 14 | 13 |
| Feels °C (?) | 8 | 7 | 9 | 9 | 8 | 11 | 12 | 12 | 11 | 11 | 11 | 8 | 8 | 11 | 12 | 13 | 12 | 11 | 9 | 8 | 8 | 9 | 10 | 7 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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