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:
Kanaha surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 1 am Monday 15 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Kanaha surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kanaha sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Kanaha today?
The current surf forecast for Kanaha at 8AM is: 1.6m 13s primary swell from a Northwest direction and 1.3m 14s secondary swell from a North direction (forecast issued at 01:00am December 15). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 5ft (1.6m) | 13s |
| Afternoon (15 Dec) | 5ft (1.6m) | 14s |
| Evening (15 Dec) | 5ft (1.6m) | 14s |
Table - waves today at Kanaha. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1116 | 1083 | 905 | 784 | 966 | 1045 | 998 | 956 | 932 | 820 | 792 | 673 | 653 | 594 | 420 | 413 | 485 | 569 | 492 | 492 | 407 | 376 | 437 | 437 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | glass | off | cross- off | cross | glass | glass | glass | cross- on | glass | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:49AM 0.76 | 10:29AM 0.53 | 1:19AM 0.83 | 11:16AM 0.51 | 1:49AM 0.87 | 11:59AM 0.49 | ||||||||||||||||||
Low Tide / height (m) | 7:16AM 0.49 | 5:33PM 0.14 | 8:04AM 0.46 | 6:05PM 0.11 | 8:40AM 0.43 | 6:37PM 0.08 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:46 | - |
 | | |  |  | | |  | | | | | |  | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 24 | 24 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 26 | 25 | 24 |
| Feels °C (?) | 26 | 26 | 25 | 25 | 28 | 28 | 26 | 25 | 26 | 27 | 27 | 26 | 27 | 28 | 28 | 26 | 26 | 25 | 24 | 25 | 27 | 26 | 25 | 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 Kanaha 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