Surf Forecasts:
Trespassers surf forecast from 8 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 6PM (local time) - 4.5ft (1.4m), 16s period, SSW swell with offshore winds.
- Most powerful swell: Monday 13 Jul, 6PM (local time) - 7.5ft (2.3m), 17s period, SW swell with 3,110 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 6PM (local time) - 4.5ft (1.4m), 16s 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 Wednesday (Jul 08) at 6PM. The primary swell is predicted to be 1.4m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Trespassers in the next 16 days are 2.3m 17s and forecast to arrive on Monday (Jul 13) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 09) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 8th Jul) | 4.5ft (1.4m) 16s |
| Best Surf | 6PM (Wed 8th Jul) | 4.5ft (1.4m) 16s |
| Most Powerful | 6PM (Mon 13th Jul) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
Alright, Rusty here. Let’s break down what’s coming our way for Trespassers over the next couple of weeks.
Right out of the gate, we’ve got some solid-looking swell pushing in. Wednesday morning, July 8th, is looking prime with a 6ft SSW groundswell rolling in at 18 seconds. That’s some serious energy and the wind is a light cross-off from the ENE, keeping things clean. This is a reef setup for advanced surfers only, and with that size and long period, it’s going to be powerful and a bit tricky. The water temp is sitting at 60°, which is right about normal for this time of year. Conditions hold for the afternoon too, dropping a touch to 5ft but still very clean.
Thursday morning, July 9th, backs off a bit to 3ft from the SSW, still with a long 15-second period and light cross-off winds. It’s cleaner but smaller – a decent session for the seasoned surfer. That afternoon the wind shifts to a light cross-on from the NNW, and the waves drop to 3ft, making it a bit more marginal.
Now, here’s where it gets rough. From Friday, July 10th, all the way through to Tuesday, July 21st, we’re looking at a long, ugly run of onshore and cross-onshore winds, mostly from the W and WSW, picking up to 22-28 mph. The swell sticks around, with some days pushing over 7ft and even 10ft on Saturday the 11th, but the wind just destroys it. The energy levels get huge, but with that wind, it’s going to be a churned-up, messy, dangerous mess. This is not for paddling – this is kite-surfing territory if anything.
The standout window actually lands further out. Look at Wednesday, July 22nd. That morning we get a solid 8ft SW groundswell at 15 seconds, with a light cross-off from the SE, making for clean conditions for experienced surfers. The energy is massive. That afternoon turns glassy with a 8ft SW swell and no wind at all. That’s your best bet for a proper, clean session in the whole outlook. Thursday the 23rd drops back to 6ft with a cross-shore wind, so it’s still surfable but not as perfect.
So, to sum it up: the first few days have some clean, solid waves for the crew that can handle a heavy reef, but then we’re in for a long stretch of grotty, blown-out conditions before a real gem appears on the 22nd. Keep your eyes on that Wednesday.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Very mild (max 14°C on Wed afternoon, min 12°C on Wed morning). Winds increasing (light winds from the N on Wed night, fresh winds from the W by Fri night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sat morning. Very mild (max 15°C on Sun morning, min 12°C on Sat morning). Winds decreasing (strong winds from the WSW on Sat morning, moderate winds from the W by Mon night). | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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) | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 18 | SW 16 | SW 16 | SW 15 | SW 15 | WSW 9 | SW 11 | SW 13 | SW 13 | SW 13 | SW 14 | SW 16 | SW 16 | SSW 17 | SSW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1837 | 1214 | 768 | 443 | 486 | 906 | 773 | 566 | 418 | 864 | 1708 | 2221 | 1643 | 1395 | 1770 | 2627 | 2795 | 2964 | 1667 | 2212 | 1753 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-on | cross-off | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | cross-on | on | on | on | cross-on | cross-on |
High Tide | 4:26PM0.02m | 2:51PM0.02m | 2:29PM0.02m | 2:43PM0.02m | 3:07PM0.02m | 3:29PM0.03m | 2:26AM0.00m | 4:01PM0.03m | 2:56AM0.00m | ||||||||||||
Low Tide | 2:19AM0.00m | 2:42AM0.00m | 3:20AM0.00m | 4:58AM0.00m | 6:23AM0.00m | 00:51AM0.00m | 7:20AM0.00m | 00:37AM0.00m | |||||||||||||
 | |  |  | | | | |  |  |  |  |  | | | | | | | | | |
 | 7:30 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — |
 | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — |
mm | — | — | — | — | — | — | — | — | 2 | 2 | — | — | 1 | 1 | 2 | — | — | — | — | — | — |
Temp °C | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 12 | 14 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 14 |
Feels °C | 10 | 12 | 12 | 12 | 12 | 12 | 10 | 10 | 9 | 5 | 1 | 7 | 9 | 7 | 8 | 9 | 10 | 9 | 10 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 18 | SW 16 | SW 16 | SW 15 | SW 15 | — | — | — | SW 13 | SW 23 | SW 21 | SW 16 | SW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 1837 | 1214 | 768 | 443 | 486 | 906 | 773 | 566 | 418 | — | — | — | 509 | 21 | 113 | 2627 | 2795 | 2964 | 1667 | 475 | 499 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 20 | SW 14 | — | — | — | — | — | — | — | — | — | S 21 | SSW 19 | SSW 20 | — | — | — | — |
| kJ | — | — | — | 97 | 297 | — | — | — | — | — | — | — | — | — | 9 | 148 | 38 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | NE 3 | ENE 2 | NE 3 | — | — | NW 4 | W 5 | W 5 | WSW 9 | SW 11 | SW 13 | SW 13 | SW 13 | SW 14 | SW 16 | WSW 6 | W 8 | WSW 6 | SW 16 | SW 15 |
| kJ | 2 | 2 | 1 | 2 | — | — | 4 | 15 | 69 | 864 | 1708 | 2221 | 1643 | 1395 | 1770 | 1149 | 55 | 153 | 94 | 2212 | 1753 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 14 | 0 | 14 | 14 | 67 | 1034 | 733 | 932 | 733 | 1186 | 1234 | 1034 | 1324 | 165 | 1034 | 1212 | 499 |
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.
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