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 Tuesday 16 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
20.3° C
(Which is slightly warmer than usual)How big are the waves at Porto Moniz today?
The current surf forecast for Porto Moniz at 5AM is: 3.0m 13s primary swell from a North-northwest direction and 1.4m 13s secondary swell from a West-northwest direction (forecast issued at 11:00pm December 16). The wind direction is predicted to be onshore.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 8ft (2.4m) | 13s |
| Afternoon (17 Dec) | 7ft (2.2m) | 13s |
| Evening (17 Dec) | 7ft (2.1m) | 12s |
Table - waves today at Porto Moniz. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 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 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 24 | 22 | 21 | 19 | 18 | 17 | 16 | 16 | 17 | 15 | 16 | 16 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4510 | 4533 | 3785 | 3267 | 2005 | 1729 | 1503 | 1411 | 1342 | 1363 | 1527 | 1791 | 5855 | 9746 | 8710 | 5368 | 7747 | 6695 | 6877 | 8028 | 5446 | 6907 | 5531 | 8382 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | on | on | on | glass | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 11:58PM 1.80 | 12:16PM 1.74 | 12:36AM 1.87 | 12:54PM 1.79 | 1:12AM 1.93 | 1:31PM 1.82 | ||||||||||||||||||
Low Tide / height (m) | 6:09AM 0.52 | 6:19PM 0.47 | 6:47AM 0.44 | 6:55PM 0.42 | 7:24AM 0.38 | |||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:03 | - | - | - | - | - | - | - | 8:04 | - | - | - | - | - | - | - | 8:04 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - | 6:05 |
 |  | | |  | | |  | | | | | | | | | |  | |  |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 1 | 1 | 1 | - | - | - |
| Temp. °C | 16 | 16 | 17 | 17 | 16 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 15 |
| Feels °C (?) | 14 | 13 | 14 | 14 | 14 | 16 | 17 | 16 | 15 | 15 | 16 | 15 | 15 | 17 | 16 | 17 | 17 | 17 | 15 | 13 | 13 | 14 | 14 | 12 |
- 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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