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:
San Miguel - Baixa de Viola surfForecast / Azores / Portugal
48hr Weather and Surf, issued 10 pm Sunday 14 Dec 2025 -01Forecast update in hr min s Forecast update imminent
San Miguel - Baixa de Viola surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's San Miguel - Baixa de Viola sea temperature is
17.6° C
(Which is normal for this time of year)How big are the waves at San Miguel - Baixa de Viola today?
The current surf forecast for San Miguel - Baixa de Viola at 1AM is: 2.5m 12s primary swell from a West-northwest direction and 0.7m 12s secondary swell from a North direction (forecast issued at 10:00pm December 14). An open ocean swell of 0.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-01) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 10ft (3.0m) | 12s |
| Afternoon (15 Dec) | 13ft (4.0m) | 14s |
| Evening (15 Dec) | 13ft (4.0m) | 14s |
Table - waves today at San Miguel - Baixa de Viola. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 16 | 16 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1886 | 1905 | 1897 | 2104 | 2647 | 5227 | 5583 | 5528 | 5583 | 4359 | 3901 | 3380 | 2759 | 2053 | 1830 | 1572 | 1411 | 1486 | 1415 | 1207 | 694 | 4532 | 2472 | 2293 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 10:10PM 1.19 | 10:23AM 1.22 | 10:56PM 1.25 | 11:09AM 1.25 | 11:36PM 1.31 | 11:50AM 1.28 | ||||||||||||||||||
Low Tide / height (m) | 4:16AM 0.46 | 4:40PM 0.36 | 5:04AM 0.41 | 5:20PM 0.33 | 5:46AM 0.36 | |||||||||||||||||||
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:23 |
 | |  | |  | | | | | | |  | |  | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 16 | 15 | 15 | 15 | 15 | 16 | 15 | 15 | 14 | 14 | 13 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 |
| Feels °C (?) | 13 | 10 | 9 | 8 | 8 | 9 | 8 | 10 | 11 | 12 | 11 | 11 | 10 | 12 | 12 | 12 | 13 | 13 | 14 | 15 | 14 | 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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