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:
Chinamans Hat/Mokolii surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Friday 12 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Chinamans Hat/Mokolii surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Chinamans Hat/Mokolii sea temperature is
25.5° C
(Which is slightly warmer than usual)How big are the waves at Chinamans Hat/Mokolii today?
The current surf forecast for Chinamans Hat/Mokolii at 9AM is: 1.0m 11s primary swell from a Northwest direction and 0.7m 12s secondary swell from a North-northwest direction (forecast issued at 07:00am December 12). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 3.5ft (1.0m) | 11s |
| Afternoon (12 Dec) | 3.5ft (1.1m) | 12s |
| Evening (12 Dec) | 4ft (1.2m) | 11s |
Table - waves today at Chinamans Hat/Mokolii. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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 | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 14 | 14 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 414 | 278 | 179 | 327 | 327 | 357 | 410 | 469 | 407 | 392 | 400 | 326 | 320 | 260 | 202 | 158 | 122 | 96 | 141 | 184 | 289 | 588 | 570 | 444 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | glass | cross | cross | cross- off | cross- off | off | cross- off | off | off | off | off | off | off | off | off | off | cross- off | off | off | off | cross- off | cross- off |
High Tide / height (m) | 8:19AM 0.60 | 11:38PM 0.50 | 8:44AM 0.54 | 12:18AM 0.61 | 9:07AM 0.49 | 12:49AM 0.69 | ||||||||||||||||||
Low Tide / height (m) | 4:23PM 0.11 | 3:53AM 0.38 | 4:44PM 0.05 | 5:52AM 0.40 | 5:05PM 0.01 | |||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | - | 6:58 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:51 | - | - | - |
 |  | | | |  | | | | | | | | | | | | | | |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 24 | 24 | 24 | 23 | 23 | 22 | 23 | 23 | 26 | 27 | 25 | 24 | 24 | 23 | 23 | 23 | 26 | 26 | 25 | 24 | 24 | 24 |
| Feels °C (?) | 22 | 23 | 25 | 24 | 25 | 24 | 24 | 23 | 25 | 24 | 25 | 25 | 25 | 25 | 26 | 24 | 25 | 25 | 27 | 25 | 26 | 26 | 26 | 26 |
- 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 Chinamans Hat/Mokolii 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