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 Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Friday 12 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Waipio Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waipio Bay sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Waipio Bay today?
The current surf forecast for Waipio Bay at 11AM is: 1.2m 12s primary swell from a North-northwest direction and 0.6m 8s secondary swell from a East direction (forecast issued at 07:00am December 12). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 4.5ft (1.3m) | 12s |
| Afternoon (12 Dec) | 3.5ft (1.0m) | 11s |
| Evening (12 Dec) | 3.5ft (1.0m) | 12s |
Table - waves today at Waipio Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 436 | 429 | 392 | 313 | 193 | 274 | 331 | 247 | 356 | 373 | 331 | 318 | 337 | 343 | 281 | 212 | 167 | 128 | 128 | 94 | 144 | 144 | 195 | 350 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- on | cross- on | glass | glass | glass | glass | glass | glass | cross- on | glass | glass | glass | glass | glass | glass | glass | on | on | glass | cross | glass | glass |
High Tide / height (m) | 8:31AM 0.67 | 11:49PM 0.60 | 9:19AM 0.60 | 12:33AM 0.70 | 10:14AM 0.54 | 1:06AM 0.78 | ||||||||||||||||||
Low Tide / height (m) | 2:05AM 0.46 | 4:15PM 0.22 | 4:36AM 0.51 | 4:50PM 0.19 | 6:31AM 0.49 | 5:24PM 0.16 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | - | 6:47 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:44 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - | 5:44 | - | - | - |
 |  | |  | |  | | | | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - |
| Temp. °C | 23 | 24 | 25 | 25 | 24 | 24 | 23 | 24 | 24 | 24 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 24 | 24 | 24 | 24 |
| Feels °C (?) | 24 | 26 | 27 | 27 | 27 | 28 | 26 | 25 | 25 | 25 | 27 | 28 | 29 | 27 | 26 | 26 | 26 | 26 | 28 | 29 | 27 | 27 | 27 | 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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