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 Saturday 13 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
20.8° C
(Which is 1.1°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 4PM is: 6.5m 16s primary swell from a North direction and 0.7m 12s secondary swell from a West-northwest direction (forecast issued at 11:00am 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 Porto Moniz. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 17 | 16 | 11 | 11 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 8 | 13 | 9 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 26573 | 23736 | 20003 | 9141 | 6329 | 4720 | 3532 | 2826 | 2033 | 1725 | 1497 | 1457 | 1502 | 1144 | 763 | 1119 | 1236 | 1193 | 985 | 756 | 734 | 984 | 1704 | 1306 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | 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) | 3:20PM 0.62 | 3:40AM 0.73 | 4:14PM 0.61 | 4:39AM 0.67 | 5:00PM 0.57 | 5:27AM 0.60 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | 8:02 | - | - | - | - | - | - | - | 8:02 | - | - | - | - | - | - | - | 8:03 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:02 | - | - | - | - |
 | |  |  |  |  | | |  | | | |  | | |  | |  | | | | | | | |
Rain (mm) | - | - | - | 1 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | - | - | - | - | - | - | - | 2 | - | - | - | - | - |
| Temp. °C | 16 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 18 | 18 | 17 | 16 | 16 | 15 | 15 |
| Feels °C (?) | 6 | 8 | 8 | 9 | 11 | 12 | 12 | 13 | 14 | 15 | 15 | 16 | 15 | 15 | 15 | 14 | 13 | 16 | 14 | 12 | 10 | 10 | 9 | 10 |
- 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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