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:
Centers surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 pm Wednesday 10 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Centers surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Centers sea temperature is
25.6° C
(Which is normal for this time of year)How big are the waves at Centers today?
The current surf forecast for Centers at 8PM is: 0.4m 15s primary swell from a South-southwest direction and 0.6m 3s secondary swell from a West direction (forecast issued at 01:00pm December 10). An open ocean swell of 1.1m 13s is not directed at the surf break, a second open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 1.5ft (0.4m) | 16s |
| Afternoon (10 Dec) | 1ft (0.3m) | 16s |
| Evening (10 Dec) | 1.5ft (0.4m) | 15s |
Table - waves today at Centers. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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 | 16 | 16 | 15 | 4 | 13 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 61 | 51 | 84 | 74 | 7 | 0 | 71 | 84 | 118 | 107 | 101 | 58 | 59 | 99 | 58 | 57 | 55 | 50 | 29 | 28 | 29 | 29 | 28 | 28 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | glass | glass | glass | cross | cross- on | glass | glass | glass | cross | cross- on | on | on | on | cross- on | cross- on | on |
High Tide / height (m) | 9:50PM 0.33 | 8:36AM 0.55 | 11:23PM 0.41 | 9:18AM 0.48 | 12:19AM 0.49 | |||||||||||||||||||
Low Tide / height (m) | 3:42PM 0.15 | 1:29AM 0.29 | 4:17PM 0.14 | 3:33AM 0.35 | 4:49PM 0.12 | 5:51AM 0.36 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 |
| Sunset | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:55 | - | - | - | - | - |
 | | |  | | | | | | |  | | | | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 24 | 23 | 22 | 21 | 20 | 24 | 24 | 23 | 22 | 22 | 22 | 21 | 21 | 23 | 23 | 23 | 21 | 21 | 22 | 22 | 23 |
| Feels °C (?) | 24 | 23 | 24 | 24 | 25 | 24 | 20 | 19 | 25 | 25 | 24 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 24 | 23 | 24 |
- 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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