Surf Forecasts:
Trespassers surf forecast from 5 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 6AM (local time) - 5.5ft (1.7m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 8 Jul, 6AM (local time) - 5.5ft (1.7m), 18s period, SSW swell with 1,901 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 3PM (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 Sunday (Jul 05) at 3PM. 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 1.7m 18s and forecast to arrive on Wednesday (Jul 08) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Jul 05) at 3PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 5th Jul) | 4.5ft (1.4m) 16s |
| Best Surf | 6AM (Wed 8th Jul) | 5.5ft (1.7m) 18s |
| Most Powerful | 6AM (Wed 8th Jul) | 5.5ft (1.7m) 18s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here again, givin' you the same rundown but in feet and miles per hour.
We’ve got a solid pulse hitting late this week, and the real standout is the weekend of July 19th and 20th. That’s where the magic’s at. Let’s walk through it, day by day.
Sunday the 5th starts strong. Trespassers is seeing a 5 ft SSW groundswell, long 17-second period, with a fat chunk of energy (1438). Wind is a clean offshore from the ENE at 12 mph, keepin’ things tidy. This is top-tier for the advanced crew—water’s at 60°, right where it should be for this time of year. Monday the 6th drops to 3 ft, still clean with a light offshore breeze, but it’s more of a cruiser. Tuesday the 7th holds similar smaller stuff, direction shifting a bit SW.
Wednesday the 8th jumps back up to 6 ft, with a very long 18-second interval—that’s proper groundswell (1837 energy). Wind is cross-off, not perfect but workable. Thursday the 9th morning goes glassy, ENE breeze at just 3 mph, but swell’s only 3 ft. Nice for a paddle, but not the big stuff.
Then it gets ugly Friday the 10th through most of the next week. Friday brings a stiff NNW wind, cross-on and choppy—4 ft looks messy. Saturday the 11th is worse, 18 mph N wind turning it into a lumpy mess, and Sunday the 12th brings rain and onshore wind with a jump to 7 ft from W, but it’s a short-period wind swell (9 seconds) and choppy as hell. Monday the 13th you’ve got a massive 10 ft SW swell (3900 energy) but a 22 mph cross-shore wind is tearing it apart—experts only, and it’s a washing machine. The rest of that week stays messy.
But hold on—Saturday the 18th starts to build again: 6 ft SW with a light cross-shore breeze. Then the gold is Sunday the 19th. Trespassers lights up: 7 ft SW at a clean 14-second period, offshore ENE breeze at 3 mph in the morning, then glassy by the afternoon—zero wind, 7 ft, 15-second period, energy at 2172. That’s *perfect* for advanced surfers. Big, clean, lined-up. Monday the 20th keeps the fire: 7 ft to 7 ft SSW/SW, 16-second intervals, light offshore or cross-off winds. Crowds are possible at Trespassers, so get in early.
So the standout is Sunday the 19th and Monday the 20th. That’s your strike. The first week has some small windows, but the big gold is at the end. Watch the forecasts, that second-week run looks special.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Tue morning, min 10°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Very mild (max 15°C on Fri night, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SW 15 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1438 | 1042 | 604 | 330 | 233 | 131 | 436 | 544 | 681 | 1837 | 1214 | 768 | 443 | 372 | 929 | 783 | 649 | 529 | 308 | 212 | 132 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross | cross-on | cross | cross | cross | cross | on |
High Tide | 5:36PM0.02m | 7:12AM0.01m | 5:39PM0.02m | 5:24PM0.02m | 4:26PM0.02m | 2:51PM0.02m | 2:29PM0.02m | 2:43PM0.02m | |||||||||||||
Low Tide | 10:18AM0.01m | 1:13AM0.00m | 10:21AM0.01m | 1:35AM0.00m | 1:57AM0.00m | 2:19AM0.00m | 2:42AM0.00m | 3:20AM0.00m | |||||||||||||
 |  |  | | |  | | | |  | | | | |  | | | | |  |  | |
 | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:30 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — |
 | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 6 | 10 |
Temp °C | 12 | 11 | 11 | 11 | 12 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 14 | 16 | 11 |
Feels °C | 7 | 6 | 7 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 12 | 12 | 13 | 13 | 12 | 10 | 11 | 12 | 6 | 7 | 2 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SW 15 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 |
| kJ | 1438 | 1042 | 604 | 330 | 233 | 131 | 436 | 544 | 681 | 1837 | 1214 | 768 | 443 | 372 | 929 | 783 | 649 | 529 | 308 | 212 | 132 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SSW 18 | — | — | SSW 15 | — | — | — | SSW 21 | SW 18 | — | — | — | W 4 | — | W 5 | WSW 8 |
| kJ | — | — | — | — | — | 121 | — | — | 372 | — | — | — | 44 | 338 | — | — | — | 1 | — | 1 | 26 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 3 | — | — | — | — | — | — | ENE 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | ESE 4 | ESE 3 | E 3 | E 3 | E 4 | E 4 | ENE 4 | NE 3 | NE 3 | — | NE 3 | — | — | NW 4 | WNW 4 | WNW 4 | NNW 4 | N 4 | NNW 5 |
| kJ | 10 | 8 | 5 | 2 | 1 | 3 | 7 | 7 | 4 | 3 | 2 | — | 1 | — | — | 4 | 7 | 3 | 7 | 26 | 48 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 18 | 0 | 0 | 0 | 14 | 7 | 17 | 17 | 17 | 159 | 480 | 161 |
Best forecast wave conditions in Yorke Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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