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 Sunday 14 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 5AM is: 2.5m 14s primary swell from a West-northwest direction (forecast issued at 11:00pm December 14). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 8ft (2.5m) | 13s |
| Afternoon (15 Dec) | 7.5ft (2.3m) | 13s |
| Evening (15 Dec) | 7ft (2.2m) | 13s |
Table - waves today at Furnas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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 | 13 | 15 | 14 | 13 | 13 | 12 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2300 | 2609 | 2591 | 2494 | 2211 | 2026 | 1876 | 2318 | 1619 | 3542 | 2919 | 9377 | 11085 | 12497 | 10041 | 9217 | 11362 | 9291 | 5868 | 6314 | 4961 | 3874 | 3369 | 2752 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | cross | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross- off |
High Tide / height (m) | 11:07PM 2.21 | 11:25AM 2.24 | 11:55PM 2.31 | 12:13PM 2.29 | 12:36AM 2.42 | 12:56PM 2.36 | ||||||||||||||||||
Low Tide / height (m) | 5:16AM 0.84 | 5:38PM 0.73 | 6:05AM 0.75 | 6:20PM 0.68 | 6:47AM 0.64 | |||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:50 | - | - | - |
| Sunset | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:15 | - | - | - | - | - | - | - | 5:16 | - |
 | | | |  |  | |  |  |  |  |  |  | | | |  |  | | |  | |  | | |
Rain (mm) | - | - | - | - | - | 1 | 2 | 1 | 12 | 1 | 2 | 7 | 3 | 1 | 1 | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 12 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 14 | 14 | 13 |
| Feels °C (?) | 11 | 11 | 11 | 11 | 12 | 10 | 8 | 8 | 6 | 5 | 2 | 0 | -1 | 0 | 1 | 1 | 3 | 4 | 6 | 7 | 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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