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:
Cliffs surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Thursday 11 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Cliffs surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cliffs sea temperature is
26.0° C
(Which is slightly warmer than usual)How big are the waves at Cliffs today?
The current surf forecast for Cliffs at 4AM is: 0.4m 15s primary swell from a South-southwest direction and 0.6m 8s secondary swell from a East direction, 0.5m 4s secondary swell from a West-southwest direction (forecast issued at 01:00am December 11). An open ocean swell of 0.9m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 2ft (0.6m) | 8s |
| Afternoon (11 Dec) | 2ft (0.6m) | 8s |
| Evening (11 Dec) | 1.5ft (0.5m) | 8s |
Table - waves today at Cliffs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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) (?) | 15 | 15 | 15 | 8 | 14 | 8 | 8 | 8 | 8 | 8 | 8 | 11 | 11 | 11 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 12 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 73 | 72 | 71 | 43 | 120 | 42 | 29 | 29 | 30 | 30 | 31 | 0 | 0 | 0 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 27 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | off | off | off | cross- off | cross- off | off | cross- off | off | off | glass | cross- on | cross | cross | on | on | on | on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 10:38PM 0.29 | 9:17AM 0.51 | 11:45PM 0.37 | 10:05AM 0.43 | 12:34AM 0.44 | 10:54AM 0.36 | ||||||||||||||||||
Low Tide / height (m) | 2:35AM 0.23 | 4:48PM 0.03 | 4:29AM 0.27 | 5:18PM 0.03 | 6:19AM 0.26 | 5:46PM 0.02 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:51 | - |
 |  |  |  | |  |  | | | | |  | | | | | | | | | | | |  | |
Rain (mm) | - | - | 1 | 4 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 24 | 24 | 23 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 23 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 |
| Feels °C (?) | 23 | 23 | 23 | 24 | 22 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 26 | 25 | 26 | 24 | 23 | 22 | 22 | 24 | 24 | 25 |
- 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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