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 am Tuesday 16 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
17.5° 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 1PM is: 1.8m 14s primary swell from a North-northwest direction and 0.8m 12s secondary swell from a West-northwest direction, 1.4m 5s secondary swell from a West-southwest direction (forecast issued at 10:00am December 16). The wind direction is predicted to be cross-shore.
| Time (-01) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 7ft (2.1m) | 14s |
| Afternoon (16 Dec) | 6ft (1.8m) | 13s |
| Evening (16 Dec) | 5.5ft (1.7m) | 13s |
Table - waves today at San Miguel - Ribeira Grande. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 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 | 8 PM | 11 PM | 2 AM | 5 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 13 | 11 | 12 | 16 | 22 | 20 | 19 | 18 | 16 | 16 | 18 | 16 | 16 | 16 | 16 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1797 | 1422 | 1151 | 983 | 953 | 862 | 811 | 711 | 743 | 558 | 1324 | 3495 | 5678 | 4647 | 4113 | 4158 | 3738 | 1947 | 4820 | 5522 | 5887 | 4108 | 6735 | 6750 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 11:08AM 1.23 | 11:36PM 1.29 | 11:49AM 1.27 | 12:13AM 1.35 | 12:27PM 1.30 | 12:49AM 1.40 | ||||||||||||||||||
Low Tide / height (m) | 5:04AM 0.41 | 5:20PM 0.32 | 5:45AM 0.36 | 5:57PM 0.29 | 6:23AM 0.31 | 6:32PM 0.25 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:24 | - | - | - | - |
 | | | |  | | | | | | |  |  | |  | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 5 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 18 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 |
| Feels °C (?) | 10 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 16 | 15 | 16 | 15 | 14 | 15 | 11 | 9 | 9 | 10 | 9 | 9 | 10 | 11 | 11 | 11 |
- 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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