
Surf Forecasts:
Trespassers surf forecast from 25 Jul 2026:
- Best quality surf: Thursday 30 Jul, 9PM (local time) - 3ft (0.9m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 12AM (local time) - 8ft (2.5m), 16s period, SW swell with 3,622 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 9PM (local time) - 3ft (0.9m), 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 9PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.1m and 23s. 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 2.5m 16s and forecast to arrive on Wednesday (Jul 29) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Aug 01) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 30th Jul) | 3ft (0.9m) 13s |
| Best Surf | 9PM (Thu 30th Jul) | 3ft (0.9m) 13s |
| Most Powerful | 12AM (Wed 29th Jul) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s have a look at what’s coming our way for Trespassers.
Honestly, looking at the next two weeks, it’s a pretty grim stretch for Trespassers. We’ve got a huge gap with pretty much nothing worth paddling out for until we get into the second week. The first real standout doesn’t pop up until Wednesday the 5th of August, and that’s the only true winner in the whole window. Before that, it’s a lot of onshore junk, strong winds, and messy conditions.
There’s a bit of a pulse from a solid SSW groundswell on the 28th and 29th of July, with the combined swell energy hitting 2527 (Tuesday afternoon) and 2737 (Wednesday morning), which is strong energy. But the wind is a killer – strong cross-onshore and fresh cross-shore breezes just ruin it. That 8ft swell on Tuesday afternoon is way too big for beginners, but even for the experienced crew, the onshore wind makes it a total mess. Not worth it.
Same story rolls through the first week of August. The energy stays moderate, but the wind just won’t cooperate. We see a little 2ft clean-up on Friday the 31st of July with a light cross-offshore breeze from the NNE, but it’s tiny and weak (combined energy 216). You might get a fun little log ride, but it’s nothing special.
Then we finally get our moment. On the morning of Wednesday, the 5th of August, the stars line up. We’ve got a 5ft SW groundswell with a very long 17-second period, and the wind is dead calm – glassy, zero wind. The combined swell energy is a solid 1377 (moderate). This is the one. That long period groundswell will have plenty of punch and shape, but because it's a reef break and that period is so long, it could get a little bowling and critical. This is an advanced wave. The water temp is about 59°, which is pretty average for this time of year, so bring a good wetsuit. Don't expect any crowds, but with conditions that good, you might see a few other keen locals on it.
After that, it’s back to the wind battle. The next few days are just cross-shore chop and lumpy conditions with onshores returning. The 10th of August has another pulse of energy (combined energy 4196 on Monday afternoon) but with a moderate cross-onshore wind and onshore flow, it's game over for quality.
So, to sum it up: there is a huge gap of poor surf right now. The only day you’re gonna want to clear your schedule is the morning of Wednesday, August 5th. Get on it, because the rest of the window looks like a write-off for Trespassers.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 16°C on Mon afternoon, min 11°C on Tue afternoon). Winds increasing (light winds from the W on Sun morning, strong winds from the SW by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 12°C on Wed morning, min 11°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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 12 | SW 12 | SW 12 | SW 13 | SW 10 | SW 11 | SW 15 | SW 14 | SW 16 | SSW 16 | SSW 15 | SW 14 | SSW 13 | SW 13 | SSW 13 | SW 13 | SW 13 | SSW 18 | SSW 17 | SSW 17 | SW 16 |
Wave Graph | |||||||||||||||||||||
192 | 195 | 190 | 299 | 207 | 799 | 2102 | 2527 | 3622 | 2330 | 1279 | 754 | 465 | 394 | 269 | 172 | 175 | 276 | 448 | 580 | 767 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross | cross-on | on | on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | glassy | cross-off | cross | cross-off | cross | cross | cross-off |
High Tide | 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 | 4:39AM0.01m | 4:32PM0.02m | ||||||||
Low Tide | 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 | 9:34AM0.00m | 11:41PM0.00m | ||||||||
7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | |
— | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | |
mm | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 16 | 14 | 13 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 |
Feels °C | 12 | 12 | 11 | 8 | 7 | 9 | 5 | 3 | 6 | 7 | 7 | 7 | 9 | 9 | 9 | 8 | 9 | 8 | 7 | 7 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 13 | SW 10 | SW 11 | — | — | SW 16 | SSW 16 | SSW 15 | SW 14 | SSW 13 | SW 13 | SSW 13 | SW 13 | SW 13 | SSW 18 | SSW 17 | SSW 17 | SW 16 |
192 | 195 | 190 | 299 | 207 | 799 | — | — | 3622 | 2330 | 1279 | 754 | 465 | 394 | 269 | 172 | 175 | 276 | 448 | 580 | 767 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SW 15 | SW 15 | SSW 13 | SSW 14 | — | — | — | — | SW 16 | W 8 | W 8 | W 7 | — | SW 23 | SSW 21 | SSW 20 | SSW 13 | W 5 | W 6 | WNW 8 |
25 | 34 | 56 | 68 | 73 | — | — | — | — | 406 | 86 | 44 | 15 | — | 21 | 44 | 149 | 154 | 1 | 17 | 63 | |
Swell 3 Height (m) Direction Period (s) | SW 16 | — | SSW 15 | SW 13 | — | — | — | — | — | — | — | — | — | — | SW 22 | — | — | — | — | — | — |
10 | — | 21 | 28 | — | — | — | — | — | — | — | — | — | — | 19 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | — | NW 4 | NW 5 | W 6 | SW 15 | SW 14 | SW 16 | S 3 | — | — | — | — | — | NE 2 | — | NE 3 | N 3 | NNW 4 | N 4 |
— | 12 | — | 23 | 74 | 78 | 2102 | 2527 | 3158 | 1 | — | — | — | — | — | 1 | — | 1 | 7 | 16 | 19 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 159 | 651 | 159 | 546 | 1040 | 978 | 1062 | 160 | 11 | 11 | 13 | 0 | 0 | 14 | 0 | 17 | 79 | 100 |
Best forecast wave conditions in Yorke Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.










