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:
Waipio Valley surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 pm Wednesday 10 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Waipio Valley surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waipio Valley sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Waipio Valley today?
The current surf forecast for Waipio Valley at 3AM is: 1.4m 14s primary swell from a Northwest direction and 0.9m 8s secondary swell from a East direction (forecast issued at 07:00pm December 10). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 4ft (1.2m) | 13s |
| Afternoon (11 Dec) | 4.5ft (1.3m) | 13s |
| Evening (11 Dec) | 4.5ft (1.3m) | 12s |
Table - waves today at Waipio Valley. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1088 | 1016 | 902 | 788 | 642 | 572 | 486 | 538 | 538 | 513 | 488 | 472 | 500 | 491 | 392 | 343 | 234 | 274 | 319 | 297 | 303 | 356 | 363 | 318 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | cross- off | off | cross- off | cross | glass | glass | cross- off | cross- off | glass | cross | on | on | cross- on | cross | glass | glass | glass | glass | cross- on | cross- on |
High Tide / height (m) | 8:08PM 0.43 | 7:49AM 0.75 | 10:27PM 0.50 | 8:31AM 0.67 | 11:49PM 0.60 | 9:19AM 0.60 | ||||||||||||||||||
Low Tide / height (m) | 12:24AM 0.36 | 3:35PM 0.26 | 2:05AM 0.46 | 4:15PM 0.22 | 4:36AM 0.51 | |||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:48 | - | - |
| Sunset | 5:43 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - |
 |  |  | | |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 23 | 23 | 23 | 23 | 26 | 26 | 24 | 23 | 23 | 24 | 23 | 24 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 26 | 26 |
| Feels °C (?) | 26 | 26 | 25 | 25 | 23 | 22 | 26 | 25 | 25 | 25 | 23 | 24 | 23 | 24 | 26 | 26 | 26 | 25 | 24 | 24 | 23 | 25 | 27 | 28 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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