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:
Portwrinkle surfForecast / Cornwall (South) / UK
48hr Weather and Surf, issued 5 pm Saturday 13 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Portwrinkle surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Portwrinkle sea temperature is
12.3° C
(Which is slightly warmer than usual)How big are the waves at Portwrinkle today?
The current surf forecast for Portwrinkle at 8PM is: 1.6m 14s primary swell from a Southwest direction (forecast issued at 05:00pm December 13). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | - | - |
| Afternoon (13 Dec) | 5.5ft (1.7m) | 15s |
| Evening (13 Dec) | 7.5ft (2.3m) | 14s |
Table - waves today at Portwrinkle. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 13 | 14 | 14 | 14 | 13 | 8 | 8 | 8 | 8 | 8 | 8 | 15 | 15 | 15 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1323 | 1016 | 2107 | 947 | 1624 | 951 | 447 | 615 | 672 | 742 | 742 | 2718 | 891 | 1008 | 1061 | 897 | 673 | 1318 | 924 | 949 | 840 | 840 | 988 | 975 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | cross- on | on | cross- off | off | off | off | off | off | off | off |
High Tide / height (m) | 12:06PM 3.73 | 12:47AM 3.55 | 1:03PM 3.65 | 1:41AM 3.61 | 1:57PM 3.66 | 2:31AM 3.72 | ||||||||||||||||||
Low Tide / height (m) | 6:29PM 1.37 | 7:01AM 1.59 | 7:41PM 1.39 | 8:14AM 1.51 | 8:42PM 1.30 | 9:10AM 1.34 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:08 | - | - | - | - | - | - | - | 8:10 | - | - | - | - | - | - | - | 8:11 | - |
| Sunset | 4:13 | - | - | - | - | - | - | - | 4:13 | - | - | - | - | - | - | - | 4:13 | - | - | - | - | - | - | - |
 |  |  | | | | | | | | |  | |  |  | |  | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 7 | 10 | 7 | 5 | 1 | 1 | 1 | 1 | - | - | - |
| Temp. °C | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 8 | 9 | 9 |
| Feels °C (?) | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 5 | 4 | 4 | 5 | 3 | 3 | 5 | 10 | 7 | 6 | 5 | 6 | 3 | 4 | 5 |
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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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