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:
Trunk Bay - Shark Bay surfForecast / Tortola / British Virgin Islands
48hr Weather and Surf, issued 7 pm Friday 12 Dec 2025 ASTForecast update in hr min s Forecast update imminent
Trunk Bay - Shark Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trunk Bay - Shark Bay sea temperature is
28.2° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Trunk Bay - Shark Bay today?
The current surf forecast for Trunk Bay - Shark Bay at 11PM is: 0.8m 13s primary swell from a North direction and 0.4m 7s secondary swell from a East-northeast direction (forecast issued at 07:00pm December 12). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (AST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | - | - |
| Afternoon (12 Dec) | 2.5ft (0.7m) | 10s |
| Evening (12 Dec) | 2.5ft (0.8m) | 13s |
Table - waves today at Trunk Bay - Shark Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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) (?) | 10 | 12 | 13 | 11 | 11 | 11 | 11 | 5 | 5 | 6 | 6 | 6 | 10 | 9 | 8 | 9 | 8 | 8 | 10 | 10 | 8 | 10 | 10 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 96 | 196 | 206 | 82 | 85 | 87 | 86 | 80 | 106 | 148 | 130 | 82 | 46 | 41 | 84 | 110 | 98 | 98 | 122 | 122 | 90 | 122 | 109 | 300 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | 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 | cross- off |
High Tide / height (m) | 2:27PM 0.39 | 3:52AM 0.39 | 3:04PM 0.35 | 4:54AM 0.42 | 3:40PM 0.31 | 5:47AM 0.44 | ||||||||||||||||||
Low Tide / height (m) | 9:14PM 0.12 | 9:54AM 0.23 | 9:50PM 0.11 | 11:09AM 0.23 | 10:26PM 0.09 | 12:17PM 0.23 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - |
| Sunset | 5:43 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:44 | - | - | - | - | - | - | - |
 |  | |  | | | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | 1 | - | - | - | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 27 | 27 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 26 | 26 | 26 | 26 | 26 |
| Feels °C (?) | 26 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 26 | 26 | 26 | 27 | 26 | 28 | 29 | 28 | 28 |
- 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 Trunk Bay - Shark Bay 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