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:
Porto Moniz surfForecast / Madeira / Portugal
48hr Weather and Surf, issued 11 pm Thursday 11 Dec 2025 WETForecast update in hr min s Forecast update imminent
Porto Moniz surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porto Moniz sea temperature is
21.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Porto Moniz today?
The current surf forecast for Porto Moniz at 3AM is: 3.0m 8s primary swell from a North-northwest direction and 1.4m 13s secondary swell from a West-northwest direction, 1.1m 18s secondary swell from a Northwest direction (forecast issued at 11:00pm December 11). The wind direction is predicted to be onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 7ft (2.1m) | 17s |
| Afternoon (12 Dec) | 20ft (6.0m) | 18s |
| Evening (12 Dec) | 23ft (7.0m) | 19s |
Table - waves today at Porto Moniz. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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 | 7 | 8 | 18 | 17 | 18 | 18 | 20 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 11 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 649 | 577 | 1127 | 1367 | 2541 | 15142 | 21890 | 37589 | 36813 | 32292 | 29457 | 27010 | 25193 | 23603 | 20806 | 9627 | 8916 | 5450 | 3949 | 3122 | 2180 | 1859 | 1475 | 1249 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 7:24PM 1.56 | 7:43AM 1.74 | 8:32PM 1.54 | 8:49AM 1.68 | 9:37PM 1.58 | 9:52AM 1.65 | ||||||||||||||||||
Low Tide / height (m) | 1:18AM 0.70 | 2:18PM 0.61 | 2:31AM 0.74 | 3:20PM 0.62 | 3:40AM 0.73 | 4:14PM 0.61 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:02 | - | - | - | - | - | - | - | 8:02 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:02 |
 |  |  | |  | | | | | | | | |  |  |  | | | | | | | | | |
Rain (mm) | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Temp. °C | 18 | 18 | 16 | 15 | 15 | 15 | 16 | 15 | 15 | 16 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 17 |
| Feels °C (?) | 17 | 13 | 10 | 9 | 7 | 7 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 8 | 9 | 10 | 10 | 12 | 13 | 13 | 13 | 15 | 15 | 15 |
- 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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