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:
El Mongol surfForecast / Asturias / Spain
48hr Weather and Surf, issued 6 pm Wednesday 10 Dec 2025 CETForecast update in hr min s Forecast update imminent
El Mongol surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's El Mongol sea temperature is
14.8° C
(Which is slightly warmer than usual)How big are the waves at El Mongol today?
The current surf forecast for El Mongol at 10PM is: 2.0m 13s primary swell from a Northwest direction and 0.6m 16s secondary swell from a West-northwest direction (forecast issued at 06:00pm December 10). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (CET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | - | - |
| Afternoon (10 Dec) | 7ft (2.1m) | 13s |
| Evening (10 Dec) | 7ft (2.1m) | 13s |
Table - waves today at El Mongol. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 18 | 18 | 16 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1374 | 1374 | 1259 | 1497 | 2350 | 2285 | 1996 | 1482 | 1210 | 1037 | 1326 | 1750 | 1555 | 2528 | 4230 | 7740 | 13161 | 13757 | 13757 | 11575 | 10345 | 9428 | 8269 | 6433 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | off | cross- off | cross- off | cross- off | cross- off | off | glass | glass | glass | glass | glass | cross- on | on | on | on | glass | glass | cross- off | glass | glass | glass | glass |
High Tide / height (m) | 8:53PM 3.22 | 9:15AM 3.47 | 9:58PM 3.10 | 10:19AM 3.32 | 11:04PM 3.06 | 11:24AM 3.24 | ||||||||||||||||||
Low Tide / height (m) | 2:30PM 1.04 | 2:41AM 1.29 | 3:33PM 1.23 | 3:47AM 1.45 | 4:42PM 1.34 | 5:02AM 1.53 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:45 | - | - | - | - | - | - | - | 8:45 | - | - | - | - | - | - | - | 8:45 | - |
| Sunset | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - |
 |  | |  | | |  | | | | |  | | |  | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 5 | 4 | 4 | 3 | 1 | 1 | - | - | - | - | - | - |
| Temp. °C | 14 | 12 | 11 | 10 | 10 | 10 | 10 | 15 | 15 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 10 | 9 | 9 | 9 | 11 |
| Feels °C (?) | 14 | 12 | 10 | 8 | 8 | 8 | 8 | 14 | 14 | 12 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 8 | 7 | 7 | 8 | 10 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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