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.
- Forecast
- Maps
- Live
- Weather State
- Spot Information
Trespassers Surf Forecast
/ SA – Yorke Peninsula (14 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Trespassers surfForecast / SA – Yorke Peninsula / Australia
12 Day Weather and Surf, issued 3 am Monday 15 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
18.2° C
(Which is 1.0°C warmer than normal for this time of year)Best Forecast Surf Conditions for Trespassers this week:
The surf forecast for Trespassers over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 15) at 1PM. The primary swell is predicted to be 1.2m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trespassers in the next 12 days are 1.3m 13s and forecast to arrive on Monday (Dec 15) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Dec 15) at 7PM.
| Wave Type | Time (ACDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Mon 15th Dec) | 4ft (1.2m) 13s |
| Best Surf | 1PM (Mon 15th Dec) | 4ft (1.2m) 13s |
| Most Powerful | 10AM (Mon 15th Dec) | 4.5ft (1.3m) 13s |
Table - best surf conditions forecast for Trespassers over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Mostly dry. Warm (max 31°C on Wed afternoon, min 12°C on Mon night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 33°C on Thu afternoon, min 15°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the SW by Sat night). | ||||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 11 | 15 | 11 | 14 | 12 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 5 | 5 | 4 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 536 | 437 | 264 | 177 | 119 | 60 | 59 | 30 | 54 | 75 | 56 | 82 | 116 | 239 | 71 | 35 | 34 | 30 | 40 | 37 | 84 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | cross | cross- off | cross- off | glass | off | cross- off | cross- on | off | cross- on | cross- on | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross |
High Tide / height (m) | 3:48AM 0.02 | 4:01AM 0.02 | 4:14AM 0.02 | 2:04PM 0.01 | 4:39AM 0.02 | 3:03PM 0.01 | 5:02AM 0.02 | 3:35PM 0.01 | 5:26AM 0.02 | 4:03PM 0.01 | |||||||||||
Low Tide / height (m) | 6:01PM 0.00 | 6:55PM 0.00 | 7:42PM 0.00 | 1:17PM 0.01 | 8:22PM 0.00 | 12:47PM 0.01 | 8:58PM 0.00 | 12:49PM 0.01 | 9:30PM 0.00 | 12:57PM 0.01 | 9:58PM 0.00 | ||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||
| Sunrise | 6:01 | - | - | 6:01 | - | - | 6:01 | - | - | 6:01 | - | - | 6:03 | - | - | 6:03 | - | - | 6:03 | - | - |
| Sunset | - | 8:31 | - | - | 8:31 | - | - | 8:32 | - | - | 8:32 | - | - | 8:34 | - | - | 8:35 | - | - | 8:35 | - |
 | |  | | | | | | | | |  |  |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 14 | 20 | 23 | 22 | 28 | 31 | 27 | 31 | 33 | 27 | 25 | 22 | 17 | 18 | 20 | 16 | 16 | 16 | 15 |
| Feels °C (?) | 14 | 12 | 10 | 17 | 19 | 19 | 25 | 27 | 23 | 27 | 29 | 22 | 23 | 18 | 15 | 17 | 16 | 12 | 11 | 10 | 11 |
- 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.
false
Information about the Trespassers Surf forecast
The above surf forecast table for Trespassers provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Trespassers can be found by selecting the local surf guide option on the grey menu. Our Trespassers surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Trespassers) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Trespassers may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Yorke Peninsula? If you are looking for accommodation near Trespassers, camping, hotels and holiday cottages in Yorke Peninsula, consider staying in Kingscote which is 86 km (53 miles) away.
Nearest