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:
Jieshi Bay surfForecast / Guangdong / China
48hr Weather and Surf, issued 1 am Wednesday 17 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Jieshi Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jieshi Bay sea temperature is
19.9° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Jieshi Bay today?
The current surf forecast for Jieshi Bay at 5AM is: 0.7m 8s primary swell from a Southeast direction (forecast issued at 01:00am December 17). An open ocean swell of 0.2m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 4ft (1.2m) | 7s |
| Afternoon (17 Dec) | 4ft (1.2m) | 7s |
| Evening (17 Dec) | 3.5ft (1.0m) | 7s |
Table - waves today at Jieshi Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 76 | 60 | 60 | 147 | 42 | 117 | 75 | 84 | 130 | 192 | 259 | 301 | 529 | 438 | 582 | 548 | 609 | 339 | 554 | 595 | 474 | 308 | 540 | 599 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross | cross- off | cross | cross- off | cross | cross | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross | cross- on | cross- on | cross |
High Tide / height (m) | 6:59PM 1.26 | 7:31PM 1.31 | ||||||||||||||||||||||
Low Tide / height (m) | 3:39AM 0.21 | 4:18AM 0.13 | 5:00AM 0.08 | |||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:35 | - | - | - | - | - | - | - | 5:36 | - |
 | | |  | | | | | | | | |  | | |  | | | |  | |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - |
| Temp. °C | 18 | 18 | 18 | 19 | 23 | 24 | 22 | 19 | 19 | 18 | 17 | 16 | 20 | 20 | 18 | 18 | 17 | 17 | 17 | 17 | 21 | 22 | 22 | 20 |
| Feels °C (?) | 17 | 17 | 16 | 17 | 21 | 22 | 20 | 17 | 16 | 16 | 15 | 13 | 17 | 17 | 15 | 16 | 15 | 16 | 16 | 16 | 20 | 20 | 20 | 18 |
- 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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