Surf Forecasts:
Trespassers surf forecast from 4 Jul 2026:
- Best quality surf: Sunday 5 Jul, 3AM (local time) - 4.5ft (1.4m), 19s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 8 Jul, 6AM (local time) - 5.5ft (1.7m), 18s period, SSW swell with 1,880 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 3AM (local time) - 4.5ft (1.4m), 19s 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 3AM. The primary swell is predicted to be 1.4m and 19s period with a secondary swell of 0.3m and 20s. 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 3s period and expected on Saturday (Jul 04) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 5th Jul) | 4.5ft (1.4m) 19s |
| Best Surf | 3AM (Sun 5th Jul) | 4.5ft (1.4m) 19s |
| 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 surfers, Rusty here. Let’s break down what’s headed for Trespassers.
It’s a forecast with two faces. We get a clean little window this weekend, and then a long slog of messy, windy slop. Water temp is about 60°, pretty normal for this time of year.
Kicks off Saturday morning, the 4th of July. Glassy conditions, wind from the SE at only 3 mph. Surf is 4 ft from the SSW with a 14-second period. The energy is moderate at 683. It’ll be clean and smooth, but not a heavy haul. The morning is the only good part of that day.
Sunday morning, the 5th of July, is the real highlight. The swell picks up to 5 ft from the SSW, with a very long 17-second period. The wind goes offshore from the ENE at 12 mph. That’s the cleanest, most powerful combo we have. The energy jumps to 1438, so you’ll feel the grunt. It’s too big for a learner though, and that long period will make it a pretty fast, critical wave at this reef.
Monday the 6th drops off quickly. Clean offshore wind but the swell is down to 3 ft SSW. The energy is low. It’s small, clean, and cruisy.
After that, it gets ugly. From Tuesday the 7th through the 18th of July, the wind goes cross, cross-off, and then onshore with strong gusts. You get a spike of size Wednesday the 8th with a 6 ft SSW groundswell and a 18-second period, 1837 energy. That’s a beast, but the cross-off breeze keeps it from being perfect. It’s for experts only.
From Thursday the 9th onward, it’s mostly a write-off. Bigger swells on the 13th and 17th but the wind is fresh onshore and choppy. On the 13th, a 8 ft SW swell with a lumpy cross-shore wind makes it look like a kite-surfing day more than anything else. The 16th brings a 6 ft WSW windswell with a short 8-second period – just slop.
Bottom line: you’ve got Saturday morning the 4th for the clean, smaller glass, and Sunday morning the 5th for the best combo of power, size, and clean offshore wind. Everything after that is a mess that lasts over a week. Get it while you can.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Sat afternoon, min 9°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Tue afternoon, min 12°C on Wed morning). Winds increasing (light winds from the E on Wed night, fresh winds from the N by Fri morning). | ||||||||||||||||||||
Sat 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SW 15 | SW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 548 | 656 | 1438 | 1042 | 604 | 330 | 233 | 131 | 436 | 544 | 578 | 1837 | 1199 | 768 | 443 | 372 | 1057 | 773 | 558 | 384 | 238 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | on | on |
High Tide | 5:27PM0.02m | 5:59AM0.01m | 5:36PM0.02m | 7:12AM0.01m | 5:39PM0.02m | 5:24PM0.02m | 4:26PM0.02m | 2:51PM0.02m | 2:29PM0.02m | ||||||||||||
Low Tide | 00:53AM0.00m | 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 |
 | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | 5:24 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 8 | 2 |
Temp °C | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 13 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 15 | 14 | 13 |
Feels °C | 12 | 9 | 8 | 6 | 7 | 9 | 8 | 10 | 10 | 10 | 9 | 11 | 12 | 12 | 12 | 13 | 12 | 8 | 9 | 8 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SW 15 | SW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
| kJ | 548 | 656 | 1438 | 1042 | 604 | 330 | 233 | 131 | 436 | 544 | 496 | 1837 | 1199 | 768 | 443 | 372 | 1057 | 773 | 558 | 384 | 238 |
Swell 2 Height (m) Direction Period (s) | — | SW 20 | — | — | — | — | — | SSW 18 | — | — | SSW 18 | — | — | — | SW 22 | SSW 19 | — | — | WNW 5 | NW 4 | NW 5 |
| kJ | — | 136 | — | — | — | — | — | 121 | — | — | 578 | — | — | — | 19 | 251 | — | — | 4 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 | — | — | — | NW 5 | W 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | SE 4 | E 4 | E 4 | ESE 4 | ESE 3 | ESE 3 | ESE 3 | E 4 | E 4 | ENE 4 | ENE 3 | NE 3 | ENE 3 | ENE 3 | — | — | NNW 4 | N 3 | NE 3 | E 4 |
| kJ | — | 6 | 7 | 7 | 5 | 2 | 1 | 2 | 4 | 4 | 4 | 2 | 2 | 1 | 1 | — | — | 12 | 5 | 4 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 18 | 18 | 0 | 0 | 0 | 0 | 14 | 14 | 100 | 100 | 166 | 480 |
Best forecast wave conditions in Yorke Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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