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:
Keaulanas surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Sunday 14 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Keaulanas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keaulanas sea temperature is
26.0° C
(Which is slightly warmer than usual)How big are the waves at Keaulanas today?
The current surf forecast for Keaulanas at 8AM is: 0.9m 9s primary swell from a Northwest direction and 1.1m 7s secondary swell from a West direction (forecast issued at 01:00am December 14). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 3ft (0.9m) | 9s |
| Afternoon (14 Dec) | 5ft (1.6m) | 11s |
| Evening (14 Dec) | 7ft (2.2m) | 13s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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) (?) | 10 | 6 | 6 | 9 | 11 | 11 | 14 | 13 | 13 | 13 | 12 | 12 | 13 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 167 | 129 | 151 | 144 | 350 | 590 | 1697 | 1648 | 1479 | 1305 | 1043 | 892 | 725 | 1509 | 1468 | 1427 | 1263 | 1064 | 901 | 875 | 734 | 591 | 563 | 336 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 1:06AM 0.56 | 11:05AM 0.33 | 1:38AM 0.62 | 12:04PM 0.29 | 2:09AM 0.66 | 12:59PM 0.26 | ||||||||||||||||||
Low Tide / height (m) | 7:56AM 0.30 | 5:49PM 0.08 | 8:59AM 0.26 | 6:18PM 0.07 | 9:43AM 0.22 | 6:49PM 0.06 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - |
 |  | |  | | | | | | | | |  | | | | | | | | |  |  | | |
Rain (mm) | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 25 |
| Feels °C (?) | 24 | 24 | 25 | 27 | 28 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 25 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
Read more
Discover more articles and updates in the Greenroom.
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Keaulanas surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest