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:
Ribeira da Janela surfForecast / Madeira / Portugal
48hr Weather and Surf, issued 5 am Saturday 13 Dec 2025 WETForecast update in hr min s Forecast update imminent
Ribeira da Janela surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ribeira da Janela sea temperature is
20.8° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Ribeira da Janela today?
The current surf forecast for Ribeira da Janela at 11AM is: 6.5m 17s primary swell from a North direction (forecast issued at 05:00am December 13). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 23ft (7.0m) | 17s |
| Afternoon (13 Dec) | 21ft (6.5m) | 16s |
| Evening (13 Dec) | 16ft (5.0m) | 11s |
Table - waves today at Ribeira da Janela. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 18 | 18 | 17 | 17 | 16 | 11 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 8 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 31583 | 29604 | 26573 | 23736 | 20048 | 9130 | 6520 | 4955 | 3532 | 2939 | 2180 | 1725 | 1575 | 1457 | 1479 | 1326 | 763 | 1262 | 1236 | 1080 | 985 | 756 | 1402 | 1836 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | on | on | on | on |
High Tide / height (m) | 8:49AM 1.68 | 9:37PM 1.58 | 9:52AM 1.65 | 10:32PM 1.64 | 10:47AM 1.66 | 11:18PM 1.72 | ||||||||||||||||||
Low Tide / height (m) | 2:31AM 0.74 | 3:20PM 0.62 | 3:40AM 0.73 | 4:14PM 0.61 | 4:39AM 0.67 | 5:00PM 0.57 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 8:00 | - | - | - | - | - | - | - | 8:02 | - | - | - | - | - | - | - | 8:03 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:02 | - | - |
 | |  | |  |  | | | | |  | | | |  | | |  | |  | | | | | |
Rain (mm) | 1 | 1 | - | - | - | 1 | 3 | 2 | 1 | 2 | 1 | 1 | 1 | - | - | - | - | - | - | - | 5 | - | - | - |
| Temp. °C | 16 | 15 | 16 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 18 | 18 | 17 | 16 | 16 |
| Feels °C (?) | 6 | 5 | 6 | 8 | 8 | 8 | 11 | 11 | 12 | 13 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 14 | 14 | 15 | 13 | 11 | 10 | 9 |
- 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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