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 Wednesday 10 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 7AM is: 2.4m 13s primary swell from a North-northwest direction and 1.4m 12s secondary 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 4.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 7ft (2.2m) | 13s |
| Afternoon (11 Dec) | 6ft (1.8m) | 13s |
| Evening (11 Dec) | 5ft (1.5m) | 13s |
Table - waves today at Porto Moniz. (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 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 17 | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2655 | 2655 | 2430 | 2148 | 1752 | 1449 | 1134 | 875 | 734 | 700 | 914 | 2720 | 2893 | 5314 | 8238 | 25099 | 23310 | 28393 | 19098 | 17210 | 14818 | 12313 | 9904 | 7718 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | glass | glass | cross- off | glass | cross | cross | cross- off | cross | on | on | on | on | on | on | on | cross- on | on | on | on | cross- on | cross- on | on |
High Tide / height (m) | 6:19PM 1.63 | 6:39AM 1.85 | 7:24PM 1.56 | 7:43AM 1.74 | 8:32PM 1.54 | 8:49AM 1.68 | ||||||||||||||||||
Low Tide / height (m) | 12:11AM 0.61 | 1:12PM 0.54 | 1:18AM 0.70 | 2:18PM 0.61 | 2:31AM 0.74 | 3:20PM 0.62 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:02 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:02 |
 |  | | |  | | | |  | |  | |  |  |  |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | 1 | - | - | 1 | - | 1 | 1 | 1 | - | 2 | 2 | 1 | - | - |
| Temp. °C | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 15 | 15 | 16 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 16 | 16 | 16 |
| Feels °C (?) | 16 | 15 | 15 | 15 | 16 | 18 | 17 | 13 | 14 | 15 | 12 | 10 | 10 | 7 | 6 | 5 | 6 | 8 | 6 | 6 | 5 | 8 | 7 | 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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