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:
Furnas surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 11 pm Wednesday 10 Dec 2025 WETForecast update in hr min s Forecast update imminent
Furnas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Furnas sea temperature is
16.0° C
(Which is slightly cooler than normal)How big are the waves at Furnas today?
The current surf forecast for Furnas at 7AM is: 3.5m 13s primary swell from a West-northwest direction (forecast issued at 11:00pm December 10). The wind direction is predicted to be offshore and the swell rating is 5.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 10ft (3.0m) | 13s |
| Afternoon (11 Dec) | 8ft (2.5m) | 13s |
| Evening (11 Dec) | 8ft (2.4m) | 13s |
Table - waves today at Furnas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 17 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4105 | 4158 | 4186 | 4038 | 3416 | 2737 | 2021 | 1435 | 1891 | 2993 | 3365 | 3166 | 3855 | 9216 | 10682 | 19864 | 25703 | 22966 | 20217 | 17231 | 14114 | 11570 | 8690 | 7085 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | off | glass | glass | cross- off | cross- on | cross- on | cross | cross- off | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off |
High Tide / height (m) | 6:59PM 2.24 | 7:18AM 2.50 | 8:02PM 2.14 | 8:22AM 2.35 | 9:09PM 2.10 | 9:28AM 2.26 | ||||||||||||||||||
Low Tide / height (m) | 12:52AM 0.73 | 1:48PM 0.65 | 1:57AM 0.86 | 2:53PM 0.75 | 3:08AM 0.92 | 3:55PM 0.78 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:45 | - | - | - | - | - | - | - | 7:46 | - | - | - | - | - | - | - | 7:47 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - |
 | | | |  | |  |  | | |  |  |  |  | | | | |  | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 2 | 6 | 8 | 4 | 2 | 6 | 2 | 1 | - | - | - | - | - | - |
| Temp. °C | 14 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 12 | 12 | 13 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 14 | 15 | 15 |
| Feels °C (?) | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 11 | 9 | 7 | 7 | 7 | 8 | 5 | 3 | 3 | 4 | 7 | 8 | 7 | 10 | 10 | 10 |
- 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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