
Surf Forecasts:
Trespassers surf forecast from 23 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 9PM (local time) - 4.5ft (1.3m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 6PM (local time) - 6ft (1.8m), 15s period, SW swell with 1,520 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 9PM (local time) - 4.5ft (1.3m), 14s 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 29) at 9PM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.1m and 20s. 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 1.8m 15s and forecast to arrive on Tuesday (Jul 28) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Wednesday (Jul 29) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 29th Jul) | 4.5ft (1.3m) 14s |
| Best Surf | 9PM (Wed 29th Jul) | 4.5ft (1.3m) 14s |
| Most Powerful | 6PM (Tue 28th Jul) | 6ft (1.8m) 15s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s talk about what’s shaping up for Trespassers over the next couple of weeks.
First up, the water’s running a bit warmer than usual for this time of year, which is a nice bonus. But the surf? Man, it’s a slow start. We’ve got a long stretch of nothing much to get excited about from Friday the 24th right through the end of July. The wind is mostly cross or onshore, and the swell is small and messy. It’s a bit of a write-off for paddle surfing. The combined energy is weak to moderate at best, but the conditions are just too choppy and wind-affected. Honestly, this setup looks more interesting for kite surfing than a proper paddle session.
We finally get a glimmer of hope on Thursday the 30th. The morning shows clean conditions with a light cross-offshore breeze from the NE. The swell is a small 4 ft from the SSW, but the combined energy is only 435, so it’s not powerful. Still, it’s glassy and clean. The afternoon turns glassy with a 3 ft SSW swell and 306 combined energy. It’s tiny, but it’s the best we’ve seen.
Friday the 31st morning keeps that clean theme going with a cross-offshore breeze and a 2 ft SSW groundswell with a very long period of 20 seconds. The combined energy is 588. That long period means the waves will have shape and energy, but at this size, it’s going to be super mellow. The afternoon gets a bit of a bump to 4 ft from the SSW, but the wind swings cross-shore and it gets a little lumpy.
Now, the standout window is the first week of August. Saturday the 1st shows solid size: 6 ft in the morning, 7 ft in the afternoon, both from the SSW with a long 18-second period. The combined energy is very strong, hitting 1966 and 2562. The wind is cross-shore, so it’s not perfect, but the power is there. This is for experienced surfers only, as it’s over 5 ft.
Sunday the 2nd is a bit mixed, with a 5 ft SSW swell in the morning and 6 ft in the afternoon, but the wind is onshore in the afternoon, making it choppy.
The real pick of the whole forecast is Monday the 3rd of August. The morning brings a 7 ft swell from the SW with a 16-second period, and clean offshore wind from the ESE at 6 mph. The combined energy is a massive 2320. This is serious, powerful groundswell with clean conditions. The afternoon is still excellent, with a 6 ft SW swell and cross-offshore wind, giving you 1641 combined energy. This is a window for experienced surfers only—over 8 ft in the morning, so it’s expert territory. The drop-off on Tuesday the 4th is still very good, with clean offshore winds and a 4 ft SSW swell, making for a fun, manageable size.
After that, the energy fades through the rest of the week, with smaller, cleaner waves but nothing to write home about. By Friday the 7th, we’re back to poor, choppy conditions.
So, to sum it up: the first week is a wash. The best surf on offer is Monday the 3rd of August for the big, clean swell, with Tuesday the 4th as a solid backup for a bit smaller waves. Don’t get your hopes up before that.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri night. Very mild (max 15°C on Sat afternoon, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Mon afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the NW on Mon night, light winds from the S by Wed morning). | ||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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 16 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 12 | SW 12 | SW 13 | SW 13 | WSW 9 | WSW 11 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||
1460 | 1069 | 857 | 639 | 488 | 369 | 319 | 255 | 264 | 195 | 386 | 286 | 197 | 634 | 1432 | 1289 | 920 | 765 | 545 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | glassy |
High Tide | 2:30PM0.02m | 2:42PM0.02m | 2:59PM0.02m | 2:07AM0.00m | 3:17PM0.02m | 2:36AM0.01m | 3:36PM0.02m | 3:04AM0.01m | 3:53PM0.02m | ||||||||||
Low Tide | 1:20AM0.00m | 1:51AM0.00m | 5:03AM0.00m | 00:09AM0.00m | 6:40AM0.00m | 11:30PM0.01m | 7:33AM0.00m | 11:19PM0.00m | 8:09AM0.00m | 11:18PM0.00m | |||||||||
— | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | |
— | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | |
mm | — | — | — | 1 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 16 | 16 | 15 | 15 | 12 | 12 | 12 | 12 |
Feels °C | 7 | 8 | 7 | 10 | 11 | 11 | 12 | 12 | 12 | 13 | 9 | 12 | 11 | 11 | 12 | 7 | 9 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 12 | SW 12 | SW 13 | SW 13 | WSW 9 | SSW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 |
1460 | 1069 | 857 | 639 | 488 | 369 | 319 | 255 | 264 | 195 | 386 | 286 | 197 | 156 | 1432 | 1289 | 920 | 765 | 545 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SSW 13 | S 18 | SW 16 | SSW 16 | SW 15 | SSW 15 | SW 13 | W 4 | SSW 12 | SSW 15 | SW 18 | SW 14 | SW 22 | SSW 20 | SW 14 |
— | — | — | — | 67 | 6 | 10 | 25 | 8 | 86 | 28 | 10 | 52 | 45 | 49 | 206 | 18 | 38 | 47 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 18 | — | — | — | — | — | — | — | SSW 14 | — | — | — | SW 21 | SSW 20 | — |
— | — | — | — | 6 | — | — | — | — | — | — | — | 79 | — | — | — | 18 | 40 | — | |
Wind waves Height (m) Direction Period (s) | — | — | WSW 4 | WSW 5 | W 6 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | — | NNW 3 | NNW 4 | NNW 3 | WSW 11 | WSW 6 | S 3 | SSE 3 | — | SSE 2 |
— | — | 8 | 19 | 66 | 21 | 18 | 26 | 14 | — | 2 | 10 | 4 | 634 | 45 | 5 | 2 | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 59 | 13 | 499 | 499 | 13 | 160 | 13 | 13 | 13 | 14 | 19 | 138 | 161 | 14 | 1192 | 13 | 11 | 13 | 0 |
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.










