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 1 pm Friday 12 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
26.1° C
(Which is slightly warmer than usual)How big are the waves at Kua Bay today?
The current surf forecast for Kua Bay at 5PM is: 0.4m 12s primary swell from a North-northwest direction and 0.4m 8s secondary swell from a North direction, 0.4m 9s secondary swell from a West-northwest direction (forecast issued at 01:00pm December 12). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 1.5ft (0.4m) | 9s |
| Afternoon (12 Dec) | 1ft (0.3m) | 12s |
| Evening (12 Dec) | 1.5ft (0.5m) | 12s |
Table - waves today at Kua Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 15 | 15 | 15 | 14 | 14 | 13 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 23 | 32 | 46 | 71 | 69 | 85 | 119 | 127 | 101 | 172 | 116 | 112 | 112 | 79 | 73 | 48 | 48 | 59 | 56 | 86 | 138 | 186 | 331 | 379 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | glass | glass | glass | cross- on | cross |
High Tide / height (m) | 9:35AM 0.53 | 12:09AM 0.56 | 10:30AM 0.46 | 12:52AM 0.63 | 11:30AM 0.41 | 1:28AM 0.70 | ||||||||||||||||||
Low Tide / height (m) | 4:50PM 0.12 | 5:56AM 0.37 | 5:23PM 0.12 | 7:27AM 0.33 | 5:56PM 0.11 | |||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:50 |
| Sunset | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - |
 | | |  | | | | | | | | | | | | | |  | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 26 | 25 | 24 | 24 | 24 | 24 | 23 | 24 |
| Feels °C (?) | 27 | 27 | 25 | 25 | 24 | 22 | 23 | 23 | 25 | 25 | 26 | 26 | 24 | 24 | 24 | 25 | 28 | 26 | 26 | 27 | 28 | 27 | 25 | 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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