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:
Bai Dai Nha Trang surfForecast / Khánh Hoà / Vietnam
48hr Weather and Surf, issued 12 pm Monday 15 Dec 2025 +07Forecast update in hr min s Forecast update imminent
Bai Dai Nha Trang surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bai Dai Nha Trang sea temperature is
25.9° C
(Which is normal for this time of year)How big are the waves at Bai Dai Nha Trang today?
The current surf forecast for Bai Dai Nha Trang at 6PM is: 1.7m 10s primary swell from a East-northeast direction (forecast issued at 12:00pm December 15). The wind direction is predicted to be cross-onshore.
| Time (+07) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 6ft (1.8m) | 9s |
| Afternoon (15 Dec) | 6ft (1.8m) | 10s |
| Evening (15 Dec) | 8ft (2.5m) | 10s |
Table - waves today at Bai Dai Nha Trang. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 554 | 584 | 609 | 1382 | 1391 | 1370 | 1567 | 1625 | 1510 | 595 | 1322 | 1246 | 1232 | 404 | 397 | 893 | 784 | 314 | 687 | 611 | 577 | 232 | 567 | 244 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross |
High Tide / height (m) | 6:25PM 1.29 | 6:39PM 1.36 | 7:01PM 1.43 | |||||||||||||||||||||
Low Tide / height (m) | 3:07AM 0.49 | 3:35AM 0.34 | 4:05AM 0.22 | |||||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 |
| Sunset | - | - | 5:20 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - |
 |  | |  | |  | | | | | | | | | | | | |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 1 | 1 | - |
| Temp. °C | 25 | 26 | 25 | 24 | 24 | 23 | 22 | 23 | 25 | 26 | 26 | 24 | 24 | 23 | 23 | 23 | 26 | 27 | 25 | 24 | 24 | 24 | 23 | 23 |
| Feels °C (?) | 24 | 25 | 25 | 24 | 25 | 24 | 23 | 25 | 26 | 26 | 27 | 25 | 26 | 25 | 24 | 25 | 27 | 27 | 25 | 25 | 25 | 25 | 24 | 24 |
- 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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