Surf Forecasts:
Trespassers surf forecast from 17 Oct 2026:
- Best quality surf: Wednesday 21 Oct, 10PM (local time) - 5.5ft (1.7m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 23 Oct, 1PM (local time) - 8ft (2.4m), 16s period, SW swell with 3,105 kJ wave energy.
- Next surfable swell (1★+): Sunday 18 Oct, 4PM (local time) - 2.5ft (0.8m), 14s period with SW swell.
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 Sunday (Oct 18) at 4PM. The primary swell is predicted to be 0.8m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trespassers in the next 16 days are 2.4m 16s and forecast to arrive on Friday (Oct 23) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Oct 19) at 7AM.
| Wave Type | Time (ACDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sun 18th Oct) | 2.5ft (0.8m) 14s |
| Best Surf | 10PM (Wed 21st Oct) | 5.5ft (1.7m) 16s |
| Most Powerful | 1PM (Fri 23rd Oct) | 8ft (2.4m) 16s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Sun afternoon, min 14°C on Mon night). Winds decreasing (fresh winds from the NNE on Sun night, light winds from the S by Tue morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Thu afternoon, min 13°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SSW 15 | SW 14 | SW 17 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 17 | SSW 16 | SW 16 | SW 15 | SW 18 | SW 17 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 57 | 146 | 248 | 737 | 581 | 558 | 440 | 313 | 245 | 342 | 309 | 1133 | 1555 | 1208 | 816 | 1175 | 2860 | 3067 | 1730 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-off | cross-off | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 8:46AM0.02m | 10:53AM0.02m | 12:34PM0.02m | 1:13PM0.02m | 4:45AM0.01m | 1:42PM0.02m | 4:12AM0.01m | 2:08PM0.02m | 4:15AM0.02m | ||||||||||
Low Tide | 11:44PM0.00m | 11:47PM0.00m | 11:17PM0.00m | 10:08PM0.00m | 9:26PM0.00m | 7:21AM0.01m | 9:14PM0.00m | 8:44AM0.01m | 9:15PM0.00m | ||||||||||
 |  | |  |  | |  | | | | | | | | | | | | | |
 | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — |
 | 7:37 | — | 7:37 | — | — | 7:38 | — | — | 7:39 | — | — | 7:40 | — | — | 7:42 | — | — | 7:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 26 | 23 | 22 | 24 | 19 | 16 | 15 | 14 | 18 | 19 | 18 | 22 | 23 | 20 | 14 | 14 | 14 |
Feels °C | 18 | 20 | 22 | 18 | 17 | 19 | 17 | 15 | 12 | 12 | 18 | 18 | 17 | 22 | 22 | 19 | 9 | 8 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 15 | SW 14 | SW 17 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SSW 17 | SSW 16 | SW 16 | SW 15 | SW 18 | SSW 17 | SW 16 | SW 15 |
| kJ | 57 | 146 | 248 | 737 | 581 | 558 | 440 | 313 | 245 | 342 | 309 | 1133 | 1555 | 1208 | 816 | 1175 | 1265 | 2297 | 1730 |
Swell 2 Height (m) Direction Period (s) | SW 12 | WSW 10 | — | — | — | NW 5 | WNW 7 | WSW 5 | SSW 24 | SW 21 | SSW 19 | — | — | — | SW 20 | SW 14 | — | — | — |
| kJ | 22 | 11 | — | — | — | 1 | 9 | 19 | 54 | 117 | 251 | — | — | — | 335 | 456 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 20 | — | — | — | — | NE 4 | — | SSW 21 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 15 | — | — | — | — | 1 | — | 45 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 3 | NE 4 | NE 4 | ENE 4 | NNE 4 | NNE 4 | W 3 | — | SW 6 | SSE 3 | SSE 3 | SE 3 | SE 3 | — | — | — | SW 17 | SW 16 | S 4 |
| kJ | 4 | 10 | 3 | 20 | 19 | 16 | 6 | — | 15 | 3 | 2 | 2 | 3 | — | — | — | 2860 | 3067 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 18 | 0 | 100 | 100 | 67 | 11 | 13 | 59 | 0 | 0 | 59 | 7 | 14 | 11 | 13 | 553 | 946 | 11 |
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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