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:
Trespassers surfForecast / SA – Yorke Peninsula / Australia
48hr Weather and Surf, issued 9 pm Saturday 13 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Trespassers surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trespassers sea temperature is
18.1° C
(Which is slightly warmer than usual)How big are the waves at Trespassers today?
The current surf forecast for Trespassers at 1AM is: 0.8m 13s primary swell from a South-southwest direction and 0.1m 4s secondary swell from a Southeast direction, 0.7m 4s secondary swell from a Southwest direction (forecast issued at 09:30pm December 13). The wind direction is predicted to be cross-onshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 4ft (1.2m) | 12s |
| Afternoon (14 Dec) | 5ft (1.5m) | 13s |
| Evening (14 Dec) | 5ft (1.6m) | 14s |
Table - waves today at Trespassers. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 552 | 215 | 202 | 152 | 465 | 471 | 528 | 907 | 1143 | 1028 | 838 | 700 | 680 | 536 | 528 | 437 | 370 | 330 | 264 | 255 | 180 | 177 | 140 | 119 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off |
High Tide / height (m) | 4:58AM 0.02 | 4:00AM 0.02 | 3:48AM 0.02 | |||||||||||||||||||||
Low Tide / height (m) | 5:04PM 0.00 | 6:01PM 0.00 | ||||||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - |
| Sunset | 8:30 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:31 | - | - | - | - | - | - | - |
 |  | | |  | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 13 | 12 | 12 | 12 | 14 | 18 | 18 | 16 | 13 | 13 | 13 | 14 | 16 | 19 | 21 |
| Feels °C (?) | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 10 | 14 | 14 | 10 | 8 | 9 | 9 | 10 | 11 | 15 | 18 |
- 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 Trespassers 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