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:
Publics surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Monday 15 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Publics surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Publics sea temperature is
25.8° C
(Which is slightly warmer than usual)How big are the waves at Publics today?
The current surf forecast for Publics at 9PM is: 0.3m 12s primary swell from a South-southwest direction and 0.7m 5s secondary swell from a South-southeast direction (forecast issued at 07:00pm December 15). An open ocean swell of 1.5m 14s is not directed at the surf break, a second open ocean swell of 0.7m 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 (15 Dec) | - | - |
| Afternoon (15 Dec) | 4ft (1.2m) | 12s |
| Evening (15 Dec) | 1ft (0.3m) | 12s |
Table - waves today at Publics. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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) (?) | 5 | 12 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 29 | 31 | 26 | 20 | 18 | 25 | 27 | 55 | 98 | 80 | 61 | 72 | 86 | 108 | 100 | 94 | 94 | 70 | 56 | 43 | 32 | 24 | 23 | 186 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross- on |
High Tide / height (m) | 2:20AM 0.62 | 1:22PM 0.22 | 2:53AM 0.66 | 2:06PM 0.20 | 3:26AM 0.69 | |||||||||||||||||||
Low Tide / height (m) | 6:39PM 0.01 | 9:42AM 0.16 | 7:08PM 0.01 | 10:23AM 0.13 | 7:39PM -0.00 | 11:00AM 0.12 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - |
| Sunset | 5:51 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - |
 |  |  | |  | | | | | | | | | | | | | | | | | | |  | |
Rain (mm) | 2 | 1 | - | - | - | 2 | 1 | 1 | 2 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | - |
| Temp. °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 25 | 25 |
| Feels °C (?) | 26 | 25 | 25 | 26 | 25 | 26 | 25 | 24 | 25 | 25 | 25 | 23 | 24 | 23 | 22 | 22 | 23 | 24 | 24 | 23 | 23 | 25 | 25 | 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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