
Surf Forecasts:
Trespassers surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 3AM (local time) - 2.5ft (0.8m), 20s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 3 Aug, 12AM (local time) - 5.5ft (1.7m), 16s period, SW swell with 1,456 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 6AM (local time) - 4.5ft (1.3m), 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 1.3m and 13s period with a secondary swell of 0.5m and 7s. 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 1.7m 16s and forecast to arrive on Monday (Aug 03) 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 0.4m 3s period and expected on Saturday (Aug 01) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 30th Jul) | 4.5ft (1.3m) 13s |
| Best Surf | 3AM (Wed 5th Aug) | 2.5ft (0.8m) 20s |
| Most Powerful | 12AM (Mon 3rd Aug) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a solid little run of surf on the cards for Trespassers, and it’s one of those spots that really needs the right direction to light up. That optimum swell is from the SSW, and when it lines up, it’s a proper reef setup for the advanced crew.
The water temp is sitting pretty much where you’d expect for this time of year, nothing weird going on there.
Thursday the 30th kicks things off nicely. Morning sees a clean 4ft SSW swell with a nice 13-second period, light cross-off wind from the ESE, and the combined energy is moderate at 483. It’s a clean, workable wave. But the afternoon is where it’s at – the wind drops to glassy, the swell cleans up to 4ft from the SW, and you’ve got that glassy surface. That’s a real treat for the after-work session.
Friday the 31st is a bit smaller, with 3ft to 2ft SSW/SW swell, but the winds are light cross-off or light breeze, keeping it clean. The combined energy is lower, around 259 to 335, so it’s playful but not pumping. Still a good day for a longboard or a groveler.
Then we hit a rough patch. Saturday the 1st of August sees the swell bump up to 4ft to 5ft, but a strong 16 mph north wind blows straight across it, creating a cross-chop. The energy jumps to 780 and then 1174, but the wave quality is marginal. Sunday the 2nd is a write-off – 22 mph onshore westerlies, rain, poor conditions. Monday the 3rd isn’t much better with cross and cross-on winds. There’s a gap of poor surf from Saturday the 1st through to Monday the 3rd.
Now, Tuesday the 4th of August is a beauty. The wind goes dead calm, glassy, with a 3ft to 3ft SW swell. Combined energy is a modest 340 to 375, but with that glassy surface, it’s going to be super clean and fun.
Wednesday the 5th of August is a standout. Morning brings a clean 3ft SSW swell, but the period is a very long 18 seconds, and the combined energy is a solid 840. The wind is a light cross-off from the NNE. That’s a proper groundswell with real push. Remember, with that long period on a reef, it’s going to be lined up, but the sets will be a bit more spread out. This is the pick of the first week.
Thursday the 6th of August is another top-tier day. Clean 4ft to 5ft SSW swell, 16-second period, and a light offshore wind from the ENE. Combined energy is in the 843 to 945 range. That’s chest to head-high, clean, and offshore. This is the other standout.
Friday the 7th of August is a bit of a mixed bag. The swell jumps to 6ft to 6ft, which is getting into the solid zone, but the wind is a moderate 12 mph cross-off. The energy is strong, hitting 1787, but the wind is a touch stronger, so it’s not as clean as the previous days.
Saturday the 8th and Sunday the 9th of August are blown out by strong winds, 19 to 25 mph. The swell on Sunday the 9th gets up to a massive 12ft, but with a 22 mph cross-on wind, it’s a complete mess. The energy is a massive 4464, but it’s just not surfable.
Monday the 10th and Tuesday the 11th are onshore, poor, and lumpy. The swell drops back to 3ft on the 11th, but the chop is still there.
Then, looking ahead to Wednesday the 12th of August, we have a potential bomb. A 7ft to 7ft SW swell with a very long 19-second period, and a light cross-off wind from the ENE. The combined energy is massive, 3573 to 4071. That’s a serious groundswell. For experienced surfers, this is the best of the whole run. Just be aware that it’s big, over 7ft, so it’s for the expert crew only. The sets will be long and powerful, and the reef will be working.
Thursday the 13th and Friday the 14th of August see the wind swing onshore again, ruining the party with moderate to fresh cross-on winds, despite the swell remaining solid.
So, to wrap it up: the two true standouts are Thursday the 6th of August for the clean, offshore, head-high waves, and Wednesday the 12th of August for the big, powerful groundswell for the experts. The best bet for the average surfer is that Thursday the 6th.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Thu afternoon, min 12°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun morning. Very mild (max 14°C on Sat night, min 11°C on Mon night). Winds decreasing (fresh winds from the NW on Sat night, calm by Tue morning). | ||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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 14 | SSW 13 | SW 13 | SW 13 | SSW 13 | SW 14 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 15 | SSW 20 |
Wave Graph | |||||||||||||||||||
845 | 465 | 394 | 249 | 215 | 186 | 276 | 751 | 1068 | 1005 | 811 | 584 | 1456 | 1094 | 852 | 509 | 169 | 309 | 360 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | off | cross-off | cross-off | cross-off | cross | cross | cross | on | on | cross-on | cross | cross-on | cross-off | glassy | glassy | cross-off |
High Tide | 3:34AM0.01m | 4:03PM0.02m | 4:03AM0.01m | 4:21PM0.02m | 4:39AM0.01m | 4:32PM0.02m | 5:23AM0.01m | 4:40PM0.02m | 6:06AM0.01m | 4:45PM0.02m | 6:58AM0.01m | 4:39PM0.02m | |||||||
Low Tide | 11:18PM0.00m | 8:40AM0.00m | 11:23PM0.00m | 9:07AM0.00m | 11:26PM0.00m | 9:34AM0.00m | 11:41PM0.00m | 9:59AM0.01m | 11:53PM0.00m | 10:22AM0.01m | 00:02AM0.00m | 10:41AM0.01m | 00:19AM0.00m | ||||||
— | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | |
— | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 |
Feels °C | 8 | 9 | 10 | 10 | 9 | 10 | 8 | 7 | 7 | 9 | 6 | 5 | 6 | 9 | 8 | 8 | 9 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SW 13 | SW 13 | SSW 13 | SW 14 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 15 | SSW 14 |
845 | 465 | 394 | 249 | 215 | 186 | 276 | 751 | 1068 | 1005 | 811 | 584 | 1456 | 1094 | 852 | 509 | 169 | 309 | 268 | |
Swell 2 Height (m) Direction Period (s) | W 8 | WSW 7 | — | SW 23 | SSW 21 | SSW 20 | SSW 13 | SW 21 | SW 19 | WSW 7 | NE 4 | NE 5 | — | — | — | SW 18 | SSW 16 | SSW 22 | SSW 20 |
48 | 18 | — | 20 | 44 | 149 | 113 | 18 | 96 | 9 | 1 | 1 | — | — | — | 81 | 160 | 46 | 360 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 24 | SW 22 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 | 20 | — | |
Wind waves Height (m) Direction Period (s) | SSW 2 | — | — | — | — | NNE 2 | — | N 5 | NW 4 | N 4 | WNW 6 | WSW 5 | SW 6 | — | — | — | — | — | — |
1 | — | — | — | — | 1 | — | 11 | 10 | 6 | 109 | 74 | 56 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 0 | 0 | 0 | 0 | 0 | 18 | 100 | 100 | 100 | 668 | 546 | 499 | 13 | 59 | 0 | 0 | 0 | 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)
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.










