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:
Holywell Bay surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 5 am Saturday 13 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Holywell Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Holywell Bay sea temperature is
12.2° C
(Which is slightly warmer than usual)How big are the waves at Holywell Bay today?
The current surf forecast for Holywell Bay at 11AM is: 3.0m 15s primary swell from a West direction (forecast issued at 05:00am December 13). The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 10ft (3.0m) | 16s |
| Afternoon (13 Dec) | 8ft (2.5m) | 14s |
| Evening (13 Dec) | 8ft (2.5m) | 13s |
Table - waves today at Holywell Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| 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 | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6813 | 5522 | 4371 | 3499 | 2545 | 2277 | 2204 | 2243 | 2453 | 2507 | 3050 | 3364 | 3648 | 3891 | 4081 | 4055 | 4055 | 3741 | 3265 | 2843 | 2764 | 2796 | 2775 | 3017 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | 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 | cross- off | cross- off | cross- off | cross- off | off | on | cross- on | on |
High Tide / height (m) | 11:53AM 5.01 | 12:31AM 4.78 | 12:58PM 4.94 | 1:33AM 4.87 | 1:57PM 5.00 | |||||||||||||||||||
Low Tide / height (m) | 5:46AM 1.91 | 6:27PM 1.83 | 6:51AM 1.97 | 7:27PM 1.83 | 7:52AM 1.89 | 8:21PM 1.74 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tue 16 | |||||||||||||||||||||
| Sunrise | - | - | 8:11 | - | - | - | - | - | - | - | 8:11 | - | - | - | - | - | - | - | 8:12 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:15 | - | - | - | - | - | - | - | 4:15 | - | - | - | - | - | - | - | 4:16 | - | - | - |
 | |  | |  |  |  | | | | |  | | | |  | | |  |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 4 | 4 | 8 | 9 | 10 | 3 | - |
| Temp. °C | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 9 | 10 |
| Feels °C (?) | 7 | 7 | 6 | 5 | 4 | 5 | 4 | 4 | 3 | 3 | 2 | 3 | 3 | 3 | 4 | 3 | 4 | 5 | 4 | 8 | 10 | 4 | 2 | 4 |
- 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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