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:
Mill Bay surfForecast / Scot – Orkney / UK
48hr Weather and Surf, issued 5 am Tuesday 16 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Mill Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mill Bay sea temperature is
10.0° C
(Which is slightly warmer than usual)| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | - | - |
| Afternoon (16 Dec) | - | - |
| Evening (16 Dec) | 1ft (0.3m) | 12s |
Table - waves today at Mill Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 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) (?) | 16 | 15 | 15 | 15 | 15 | 13 | 12 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 11 | 10 | 25 | 10 | 25 | 24 | 23 | 23 | 23 | 23 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 38 | 0 | 0 | 0 | 0 | 13 | 25 | 21 | 21 | 34 | 33 | 18 | 17 | 16 | 22 | 22 | 99 | 20 | 113 | 289 | 277 | 179 | 167 | 104 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:59AM 2.11 | 8:13PM 2.12 | 8:39AM 2.21 | 8:59PM 2.19 | 9:17AM 2.30 | 9:41PM 2.25 | ||||||||||||||||||
Low Tide / height (m) | 2:02PM 0.76 | 2:18AM 0.66 | 2:43PM 0.66 | 2:56AM 0.63 | 3:20PM 0.57 | |||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | - | - | 8:59 | - | - | - | - | - | - | - | - | 9:00 | - | - | - | - | - | - | - | 9:00 | - | - | - | - |
| Sunset | - | - | - | - | 3:11 | - | - | - | - | - | - | - | 3:11 | - | - | - | - | - | - | - | 3:11 | - | - | - |
 |  |  | | | | | | |  |  |  | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 2 | - | - | 1 | - | - | - | 1 | - | - | - | - | 1 | 2 |
| Temp. °C | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 6 | 9 | 10 | 10 | 9 | 9 | 9 | 8 | 7 | 8 | 9 | 9 | 8 | 8 |
| Feels °C (?) | 1 | 0 | -1 | -1 | -1 | -2 | -2 | -2 | -2 | -3 | -7 | -2 | 1 | 2 | 1 | 1 | 1 | -1 | -2 | -1 | -3 | -3 | 0 | -1 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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