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:
Kua Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Tuesday 16 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kua Bay sea temperature is
26.2° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Kua Bay today?
The current surf forecast for Kua Bay at 12PM is: 1.1m 13s primary swell from a North direction and 0.5m 11s secondary swell from a West-northwest direction (forecast issued at 07:00am December 16). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 3.5ft (1.1m) | 13s |
| Afternoon (16 Dec) | 3.5ft (1.1m) | 13s |
| Evening (16 Dec) | 3ft (0.9m) | 12s |
Table - waves today at Kua Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 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) (?) | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 13 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 515 | 420 | 407 | 401 | 365 | 236 | 233 | 292 | 347 | 352 | 347 | 277 | 342 | 390 | 447 | 339 | 317 | 243 | 214 | 209 | 215 | 273 | 272 | 141 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | on | glass | cross- on | cross- on | cross | cross | cross- off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | glass |
High Tide / height (m) | 2:02AM 0.75 | 1:22PM 0.34 | 2:35AM 0.79 | 2:07PM 0.33 | 3:09AM 0.82 | 2:47PM 0.32 | ||||||||||||||||||
Low Tide / height (m) | 9:12AM 0.24 | 7:04PM 0.08 | 9:49AM 0.20 | 7:39PM 0.07 | 10:24AM 0.18 | 8:14PM 0.05 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | - | 6:50 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:47 | - | - | - |
 |  | | | |  | |  | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 27 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 25 | 25 | 24 |
| Feels °C (?) | 28 | 27 | 30 | 28 | 28 | 28 | 26 | 26 | 27 | 26 | 26 | 23 | 25 | 24 | 25 | 25 | 25 | 26 | 28 | 27 | 27 | 27 | 28 | 27 |
- 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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