Surf Forecasts:
Trespassers surf forecast from 24 Jul 2026:
- Best quality surf: Friday 31 Jul, 6PM (local time) - 3.5ft (1.0m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 9AM (local time) - 6ft (1.9m), 20s period, SSW swell with 3,019 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 6AM (local time) - 4ft (1.2m), 13s period with SSW 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 Thursday (Jul 30) at 6AM. The primary swell is predicted to be 1.2m and 13s period with a secondary swell of 0.4m and 8s. 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 1.9m 20s and forecast to arrive on Saturday (Aug 01) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Jul 29) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 30th Jul) | 4ft (1.2m) 13s |
| Best Surf | 6PM (Fri 31st Jul) | 3.5ft (1.0m) 14s |
| Most Powerful | 9AM (Sat 1st Aug) | 6ft (1.9m) 20s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at the upcoming swell window for Trespassers.
Right off the bat, it’s a grim start. We’re looking at a solid week of nothing but cross-onshore junk and poor conditions, so don’t bother paddling out until the end of July. The water temp is sitting at 59°F which is pretty much spot on for the time of year.
The first real glimmer of hope comes on Thursday, the 30th of July. We’ve got a clean morning with cross-offshore wind and a 4ft swell from the SSW. The energy is sitting at a modest (394), but with that wind cleaning things right up, it’ll be the best we’ve seen in a while. Friday the 31st is very similar - morning looks clean again with a 3ft SSW swell and cross-offshore breeze, energy around (422). Those two mornings are your best early bets, but stay sharp as it gets a little bumpy later in the day.
We get a brief pulse of size over the weekend of the 1st and 2nd of August, but don't get too excited because it comes with messy cross-shore winds. On Saturday the 1st, the SSW swell jumps to 6ft with a very long 20 second period, kicking the energy right up to (3284). The problem is the wind is cross-shore from the NNW, making conditions lumpy. This one’s got the power of a groundswell, so Trespassers as a reef break might handle it better than a beach, but that chop will still be a pain. It’s only really one for the experienced crew.
If you’re willing to gamble on a long-range standout, look at Sunday the 9th of August. The afternoon session shows a solid 7ft WSW swell with a 14 second period, and the energy is massive at (4868). The wind is cross-shore from the SSW again, keeping it in the 'marginal' zone. It’s still a long way out, so keep checking, but if it cleans up even slightly, that’s the one to circle on the calendar.
Bottom line: the first week is a write-off. Target the clean windows on Thursday and Friday (30th-31st), and keep an eye on that big pulse early in August.
- Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Sat afternoon. Very mild (max 15°C on Mon morning, min 12°C on Mon night). Winds increasing (light winds from the W on Sun morning, strong winds from the NW by Mon morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Tue afternoon, min 11°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
AM | PM | 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 13 | SW 13 | SW 12 | SW 11 | SW 12 | SW 12 | SW 14 | WSW 11 | SW 12 | SW 15 | SW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 13 | SW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 437 | 369 | 282 | 189 | 224 | 190 | 115 | 974 | 723 | 1154 | 992 | 1034 | 1225 | 874 | 553 | 394 | 299 | 222 | 246 | 419 | 497 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross | cross | cross-on | cross | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 2:42PM0.02m | 2:59PM0.02m | 2:07AM0.00m | 3:17PM0.02m | 2:36AM0.01m | 3:36PM0.02m | 3:04AM0.01m | 3:53PM0.02m | 3:34AM0.01m | 4:03PM0.02m | 4:03AM0.01m | 4:21PM0.02m | |||||||||
Low Tide | 5:03AM0.00m | 00:09AM0.00m | 6:40AM0.00m | 11:30PM0.01m | 7:33AM0.00m | 11:19PM0.00m | 8:09AM0.00m | 11:18PM0.00m | 8:40AM0.00m | 11:23PM0.00m | 9:07AM0.00m | 11:26PM0.00m | |||||||||
 |  |  |  | |  | | |  |  | |  | | | | | | | | | | |
 | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — |
mm | — | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 |
Feels °C | 11 | 10 | 11 | 13 | 12 | 11 | 6 | 6 | 8 | 6 | 7 | 5 | 8 | 8 | 8 | 9 | 8 | 10 | 9 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 11 | SW 12 | SW 12 | SW 8 | SW 10 | SW 12 | SW 15 | SW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 13 | SW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 437 | 369 | 282 | 189 | 224 | 190 | 77 | 302 | 723 | 1154 | 992 | 1034 | 1225 | 874 | 553 | 394 | 299 | 222 | 246 | 419 | 328 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | S 18 | SSW 12 | SSW 16 | SW 15 | SW 15 | SW 11 | — | SW 17 | — | — | SW 15 | SW 21 | SW 14 | WSW 8 | — | SW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 18 |
| kJ | 67 | 6 | 28 | 25 | 34 | 56 | 55 | — | 71 | — | — | 574 | 18 | 164 | 21 | — | 22 | 47 | 176 | 336 | 497 |
Swell 3 Height (m) Direction Period (s) | S 18 | — | SW 16 | SW 16 | — | SSW 15 | SW 14 | — | — | — | — | — | — | — | — | — | — | SW 22 | — | — | — |
| kJ | 6 | — | 10 | 10 | — | 21 | 91 | — | — | — | — | — | — | — | — | — | — | 74 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | W 6 | — | WSW 6 | NNW 3 | NW 5 | WSW 11 | — | — | — | — | SSE 3 | — | — | — | — | — | — | — | — |
| kJ | — | 28 | 29 | — | 14 | 4 | 115 | 974 | — | — | — | — | 4 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 722 | 13 | 14 | 14 | 100 | 165 | 651 | 546 | 733 | 1212 | 13 | 11 | 13 | 11 | 0 | 13 | 0 | 0 | 14 | 0 |
Best forecast wave conditions in Yorke Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest