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:
Big Wave Bay surfForecast / Hong Kong / China
48hr Weather and Surf, issued 7 am Thursday 11 Dec 2025 HKTForecast update in hr min s Forecast update imminent
Big Wave Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Wave Bay sea temperature is
21.5° C
(Which is slightly cooler than normal)How big are the waves at Big Wave Bay today?
The current surf forecast for Big Wave Bay at 3PM is: 0.9m 8s primary swell from a East-southeast direction (forecast issued at 07:00am December 11). The wind direction is predicted to be onshore.
| Time (HKT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 3.5ft (1.0m) | 9s |
| Afternoon (11 Dec) | 3ft (0.9m) | 8s |
| Evening (11 Dec) | 3ft (0.9m) | 9s |
Table - waves today at Big Wave Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 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 | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 176 | 158 | 127 | 127 | 106 | 108 | 186 | 152 | 332 | 587 | 811 | 850 | 773 | 720 | 676 | 554 | 402 | 348 | 270 | 186 | 186 | 151 | 147 | 133 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 4:47PM 1.01 | 12:06AM 1.41 | 5:14PM 1.11 | 12:45AM 1.19 | 5:39PM 1.22 | 1:33AM 0.99 | ||||||||||||||||||
Low Tide / height (m) | 8:08AM 0.25 | 7:06PM 0.94 | 8:46AM 0.36 | 8:37PM 0.92 | 9:20AM 0.46 | 10:04PM 0.84 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | - | 6:50 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - | - | - |
 |  | | | |  | | | |  | | | | | |  | |  | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - |
| Temp. °C | 21 | 21 | 22 | 22 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 18 | 18 | 20 | 19 | 16 | 14 | 13 | 13 |
| Feels °C (?) | 21 | 21 | 21 | 21 | 22 | 20 | 17 | 14 | 13 | 11 | 10 | 11 | 14 | 14 | 14 | 14 | 16 | 18 | 19 | 16 | 9 | 6 | 6 | 6 |
- 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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