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:
Rest Bay surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 5 am Wednesday 17 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Rest Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rest Bay sea temperature is
10.2° C
(Which is slightly cooler than normal)How big are the waves at Rest Bay today?
The current surf forecast for Rest Bay at 7AM is: 1.0m 14s primary swell from a West-southwest direction (forecast issued at 05:00am December 17). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 3ft (0.9m) | 13s |
| Afternoon (17 Dec) | 7ft (2.2m) | 9s |
| Evening (17 Dec) | 8ft (2.4m) | 11s |
Table - waves today at Rest Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | Sat 20 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 13 | 8 | 9 | 11 | 11 | 11 | 11 | 21 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 439 | 460 | 299 | 423 | 794 | 1313 | 1274 | 923 | 698 | 1420 | 3113 | 2863 | 3040 | 3428 | 3747 | 3393 | 3691 | 3164 | 3317 | 3197 | 2620 | 2147 | 1491 | 1145 |
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 | cross- on | on | on | cross- on | cross- off | cross | on | on | cross- on | on | on | on | on | on | on | cross- on | cross- on | cross |
High Tide / height (m) | 4:23AM 7.08 | 4:44PM 7.18 | 5:04AM 7.40 | 5:24PM 7.46 | 5:43AM 7.70 | 6:02PM 7.70 | ||||||||||||||||||
Low Tide / height (m) | 10:29AM 2.09 | 10:48PM 1.94 | 11:10AM 1.81 | 11:28PM 1.70 | 11:50AM 1.57 | |||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Sat 20 | |||||||||||||||||||||
| Sunrise | - | - | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - |
 |  |  | | |  | | | | | |  | |  |  | | | |  | | | | | | |
Rain (mm) | - | - | 1 | 5 | 2 | 3 | 4 | 2 | - | - | 1 | 11 | 5 | 1 | - | - | - | 1 | 1 | 1 | 1 | - | - | - |
| Temp. °C | 7 | 8 | 9 | 9 | 11 | 11 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 8 | 8 |
| Feels °C (?) | 2 | 1 | 3 | 1 | 3 | 2 | 4 | 6 | 6 | 6 | 6 | 6 | 4 | 1 | 2 | 0 | 0 | 0 | 1 | 3 | 2 | 3 | 3 | 3 |
- 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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