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:
Boneyards surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Friday 12 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Boneyards surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Boneyards sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Boneyards today?
The current surf forecast for Boneyards at 9AM is: 1.4m 11s primary swell from a Northwest direction and 0.7m 12s secondary swell from a North-northwest direction (forecast issued at 01:00am December 12). The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 4.5ft (1.4m) | 11s |
| Afternoon (12 Dec) | 3.5ft (1.1m) | 12s |
| Evening (12 Dec) | 4.5ft (1.3m) | 11s |
Table - waves today at Boneyards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 16 | 15 | 11 | 15 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 865 | 851 | 754 | 524 | 462 | 375 | 376 | 410 | 410 | 396 | 520 | 520 | 441 | 435 | 318 | 250 | 200 | 160 | 206 | 322 | 452 | 472 | 1471 | 1710 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | glass | glass | glass | glass | cross- off | off | 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- off |
High Tide / height (m) | 12:06AM 0.41 | 8:15AM 0.55 | 12:18AM 0.50 | 8:40AM 0.49 | 12:43AM 0.58 | 9:04AM 0.45 | ||||||||||||||||||
Low Tide / height (m) | 12:50AM 0.41 | 4:18PM 0.19 | 4:38AM 0.46 | 4:39PM 0.16 | 7:07AM 0.44 | 5:03PM 0.13 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:51 | - | - | - | - | - | - | - | 5:51 | - |
 | |  |  | | | | | | | | | | | | | |  | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | 1 | 1 | 2 | 1 |
| Temp. °C | 23 | 23 | 22 | 22 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 26 | 26 | 26 | 24 | 24 | 24 | 23 | 23 | 25 | 26 | 25 | 24 |
| Feels °C (?) | 24 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 24 | 25 | 24 | 23 | 25 | 24 | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 26 |
- 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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