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 - Ribeira Grande surfForecast / Azores / Portugal
48hr Weather and Surf, issued 10 pm Saturday 13 Dec 2025 -01Forecast update in hr min s Forecast update imminent
San Miguel - Ribeira Grande surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's San Miguel - Ribeira Grande sea temperature is
17.8° C
(Which is normal for this time of year)How big are the waves at San Miguel - Ribeira Grande today?
The current surf forecast for San Miguel - Ribeira Grande at 1AM is: 1.4m 13s primary swell from a West-northwest direction and 0.9m 13s secondary swell from a North-northwest direction (forecast issued at 10:00pm December 13). The wind direction is predicted to be cross-shore.
| Time (-01) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 5ft (1.5m) | 13s |
| Afternoon (14 Dec) | 6ft (1.8m) | 13s |
| Evening (14 Dec) | 5ft (1.6m) | 13s |
Table - waves today at San Miguel - Ribeira Grande. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 14 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1053 | 746 | 484 | 758 | 824 | 724 | 1001 | 1121 | 1041 | 752 | 613 | 1223 | 1578 | 686 | 2826 | 2742 | 3071 | 3071 | 2623 | 2311 | 2060 | 1556 | 1206 | 1077 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross | cross | cross | cross- on | on | cross- on | on | on | on | on | on | on | on | on | on | cross- on | cross | cross | cross | cross | cross |
High Tide / height (m) | 9:15PM 1.12 | 9:30AM 1.20 | 10:10PM 1.17 | 10:22AM 1.21 | 10:56PM 1.23 | 11:08AM 1.23 | ||||||||||||||||||
Low Tide / height (m) | 3:18AM 0.48 | 3:55PM 0.39 | 4:16AM 0.45 | 4:40PM 0.36 | 5:04AM 0.41 | |||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 7:48 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 |
 | |  | |  |  |  | | | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 16 | 15 | 15 | 15 | 14 | 15 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 16 |
| Feels °C (?) | 15 | 14 | 14 | 16 | 16 | 17 | 16 | 17 | 13 | 10 | 8 | 7 | 6 | 7 | 9 | 9 | 11 | 12 | 12 | 11 | 10 | 12 | 12 | 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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