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:
Bellows surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Thursday 11 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Bellows surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bellows sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Bellows today?
The current surf forecast for Bellows at 1AM is: 1.3m 12s primary swell from a North-northwest direction and 0.6m 8s secondary swell from a North direction (forecast issued at 07:00pm December 11). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| 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 Bellows. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 703 | 545 | 560 | 421 | 414 | 278 | 179 | 327 | 327 | 357 | 410 | 469 | 452 | 392 | 400 | 381 | 320 | 260 | 198 | 158 | 122 | 96 | 139 | 184 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | cross- off | cross | cross- on | on | on | on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 11:00PM 0.30 | 8:52AM 0.47 | 12:11AM 0.39 | 9:17AM 0.42 | 12:51AM 0.47 | 9:40AM 0.38 | ||||||||||||||||||
Low Tide / height (m) | 4:12PM 0.12 | 1:52AM 0.23 | 4:32PM 0.08 | 4:02AM 0.29 | 4:53PM 0.04 | 6:01AM 0.30 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - |
| Sunset | 5:49 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - |
 |  | |  |  |  | |  | | | | |  | | | | | |  | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Temp. °C | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 25 |
| Feels °C (?) | 22 | 23 | 22 | 23 | 22 | 22 | 23 | 23 | 24 | 25 | 25 | 23 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 25 | 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 Bellows 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