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 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 3AM is: 4.0m 14s primary swell from a Northwest direction (forecast issued at 11:00pm December 16). The wind direction is predicted to be cross-offshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 11ft (3.5m) | 13s |
| Afternoon (17 Dec) | 10ft (3.0m) | 13s |
| Evening (17 Dec) | 7.5ft (2.3m) | 13s |
Table - waves today at Supertubos. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 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) (?) | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 23 | 21 | 21 | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 16 | 17 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 9831 | 5554 | 5837 | 4541 | 3890 | 3160 | 2699 | 2154 | 1764 | 1568 | 1629 | 4230 | 16163 | 17753 | 16945 | 16493 | 14237 | 14372 | 14683 | 10811 | 12208 | 10894 | 11811 | 12470 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | glass | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:50AM 2.90 | 1:08PM 2.83 | 1:27AM 3.00 | 1:47PM 2.86 | 2:03AM 3.09 | 2:23PM 2.89 | ||||||||||||||||||
Low Tide / height (m) | 6:35PM 1.05 | 7:01AM 1.04 | 7:12PM 1.00 | 7:40AM 0.95 | 7:46PM 0.95 | 8:16AM 0.88 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:52 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - |
 |  | | |  | | |  | | | | | | | | |  |  |  | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 7 | 12 | 4 | 1 | - | - | - | - |
| Temp. °C | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 13 | 14 | 14 | 13 |
| Feels °C (?) | 5 | 6 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 11 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 8 | 8 | 7 | 7 | 7 | 6 |
- 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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