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 am Friday 12 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
20.9° 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 7PM is: 7.5m 20s primary swell from a North-northwest direction (forecast issued at 11:00am December 12). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 15ft (4.5m) | 17s |
| Afternoon (12 Dec) | 20ft (6.0m) | 18s |
| Evening (12 Dec) | 25ft (7.5m) | 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 | Monday 15 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 18 | 18 | 20 | 19 | 18 | 18 | 18 | 17 | 11 | 11 | 16 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 10586 | 15336 | 22898 | 40964 | 40624 | 34491 | 31061 | 28277 | 26388 | 11367 | 11376 | 7926 | 6329 | 4955 | 3737 | 2939 | 2180 | 1859 | 1551 | 1457 | 1452 | 1228 | 606 | 1172 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | cross- on | cross- on | on | on | cross- on |
High Tide / height (m) | 7:43AM 1.74 | 8:32PM 1.54 | 8:49AM 1.68 | 9:37PM 1.58 | 9:52AM 1.65 | 10:32PM 1.64 | ||||||||||||||||||
Low Tide / height (m) | 2:18PM 0.61 | 2:31AM 0.74 | 3:20PM 0.62 | 3:40AM 0.73 | 4:14PM 0.61 | 4:39AM 0.67 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | 8:00 | - | - | - | - | - | - | - | 8:02 | - | - | - | - | - | - | - | 8:02 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:02 | - | - | - | - |
 |  | | |  |  | | | |  | | | | | | | | | | | | | |  | |
Rain (mm) | 1 | 1 | 1 | 1 | 1 | - | 1 | 2 | 1 | - | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 16 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 17 | 17 | 16 | 16 | 16 |
| Feels °C (?) | 8 | 7 | 5 | 4 | 6 | 5 | 6 | 6 | 6 | 7 | 8 | 9 | 11 | 12 | 13 | 13 | 14 | 15 | 16 | 15 | 15 | 15 | 15 | 14 |
- 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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