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Trespassers Surf Forecast
/ SA – Yorke Peninsula (14 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Trespassers surfForecast / SA – Yorke Peninsula / Australia
16 Day Weather and Surf, issued 2 pm Monday 18 May 2026 ACSTForecast 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
17.9° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Trespassers this week:
The surf forecast for Trespassers over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 12AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 0.8m and 15s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trespassers in the next 16 days are 1.3m 18s and forecast to arrive on Tuesday (May 19) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Friday (May 22) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 21st May) | 3.5ft (1.1m) 15s |
| Best Surf | 12AM (Thu 21st May) | 3.5ft (1.1m) 15s |
| Most Powerful | 3PM (Tue 19th May) | 4.5ft (1.3m) 18s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 17°C on Wed morning, min 15°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri night. Very mild (max 17°C on Fri morning, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SSW 12 | SW 12 | SW 11 | SW 18 | SW 11 | SW 11 | SSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 14 | SSW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | |
251 | 142 | 309 | 1007 | 263 | 216 | 226 | 589 | 476 | 395 | 167 | 272 | 357 | 447 | 295 | 238 | 167 | 236 | 228 | 220 | 161 | |
Wind (km/h) | |||||||||||||||||||||
on | on | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-off | glassy | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | on | |
High Tide | 5:29PM0.02m | 6:03PM0.02m | 6:36PM0.02m | 7:02PM0.02m | 7:18PM0.02m | 7:11PM0.01m | |||||||||||||||
Low Tide | 8:59AM-0.00m | 9:22AM-0.00m | 9:52AM-0.00m | 10:12AM0.00m | 10:15AM0.00m | 9:04AM0.01m | 6:09AM0.01m | ||||||||||||||
 |  |  | |  |  | | | | |  | | |  | |  | | | |  | | |
 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:15 | — | — | 7:16 |
 | 5:24 | — | — | 5:23 | — | — | 5:23 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:21 | — | 5:21 |
— | 2 | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 1 | 1 | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 14 | 14 | 14 | 15 |
12 | 12 | 11 | 10 | 13 | 13 | 14 | 14 | 15 | 15 | 14 | 14 | 15 | 15 | 12 | 12 | 14 | 11 | 10 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SW 12 | SSW 19 | SW 11 | SW 11 | SW 11 | SW 11 | SW 15 | SW 14 | SW 14 | SW 13 | SW 14 | SSW 14 | SW 14 | SSW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 |
 kJ | 251 | 142 | 74 | 58 | 263 | 216 | 213 | 589 | 476 | 395 | 167 | 272 | 357 | 447 | 295 | 238 | 167 | 236 | 228 | 220 | 161 |
Swell 2 Height (m) Direction Period (s) | SW 21 | SSW 20 | SW 19 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SW 15 | — | — | SSW 16 | — | ENE 3 | — | — | — | W 6 | SW 12 | SW 15 | SW 17 | SSW 16 |
| kJ | 18 | 37 | 58 | 62 | 207 | 175 | 226 | 269 | — | — | 98 | — | 1 | — | — | — | 31 | 48 | 8 | 11 | 25 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 17 | — | SW 20 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | — | 15 |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 5 | SW 11 | SW 18 | — | SW 11 | SW 11 | — | — | — | — | NNE 3 | NW 4 | W 6 | WNW 4 | W 4 | SW 5 | — | — | — | W 3 |
| kJ | 7 | 38 | 309 | 1007 | — | 137 | 121 | — | — | — | — | 1 | 2 | 6 | 4 | 8 | 33 | — | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 553 | 159 | 722 | 553 | 13 | 59 | 368 | 0 | 0 | 0 | 0 | 0 | 14 | 14 | 14 | 14 | 13 | 11 | 59 | 13 | 13 |
Best forecast wave conditions in Yorke Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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 16 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.
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