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:
H-Reef surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 7 pm Saturday 13 Dec 2025 HSTForecast update in hr min s Forecast update imminent
H-Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's H-Reef sea temperature is
25.6° C
(Which is slightly warmer than usual)How big are the waves at H-Reef today?
The current surf forecast for H-Reef at 1AM is: 1.0m 10s primary swell from a North direction and 0.6m 8s secondary swell from a East direction (forecast issued at 07:00pm December 13). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2.5ft (0.7m) | 10s |
| Afternoon (14 Dec) | 3ft (0.9m) | 11s |
| Evening (14 Dec) | 5ft (1.6m) | 14s |
Table - waves today at H-Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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) (?) | 11 | 10 | 10 | 10 | 10 | 10 | 16 | 15 | 12 | 14 | 13 | 13 | 13 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 337 | 276 | 218 | 167 | 128 | 100 | 121 | 176 | 343 | 1034 | 1116 | 991 | 905 | 853 | 1089 | 1179 | 1130 | 1064 | 932 | 932 | 796 | 769 | 649 | 604 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | off | off | glass | cross- on | glass | glass | glass | off | cross- off | cross- off | cross | cross- off | cross- off | glass | cross | cross | cross- on | glass | cross | cross |
High Tide / height (m) | 12:17AM 0.68 | 9:41AM 0.57 | 12:49AM 0.76 | 10:29AM 0.53 | 1:19AM 0.83 | 11:16AM 0.51 | ||||||||||||||||||
Low Tide / height (m) | 4:33PM 0.21 | 6:01AM 0.52 | 5:03PM 0.18 | 7:16AM 0.49 | 5:33PM 0.14 | 8:04AM 0.46 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - |
| Sunset | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - |
 |  | | | | | | |  |  |  | |  |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 24 | 24 | 24 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 25 |
| Feels °C (?) | 26 | 25 | 25 | 25 | 25 | 26 | 29 | 29 | 29 | 27 | 27 | 27 | 27 | 26 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 27 |
- 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 H-Reef 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