Surf Forecasts:
Trespassers surf forecast from 22 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 6PM (local time) - 4.5ft (1.4m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 23 Jul, 3PM (local time) - 6ft (1.9m), 15s period, SSW swell with 1,571 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 6PM (local time) - 3.5ft (1.1m), 13s period with SW 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 Monday (Jul 27) at 6PM. The primary swell is predicted to be 1.1m and 13s period. 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 1.9m 15s and forecast to arrive on Thursday (Jul 23) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Tuesday (Jul 28) at 3PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 27th Jul) | 3.5ft (1.1m) 13s |
| Best Surf | 6PM (Tue 28th Jul) | 4.5ft (1.4m) 16s |
| Most Powerful | 3PM (Thu 23rd Jul) | 6ft (1.9m) 15s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
The Lowdown
Alright, let’s talk about Trespassers – a reef break for the advanced crew. It’s fairly consistent, but we’ve got a rough start to the run. The water’s about 59°F, which is normal for this time of year.
The first few days are a write-off. Wednesday the 22nd has cross-on wind at 15 mph and poor surf with moderate energy. Thursday the 23rd brings a bigger pulse, 6ft to 6ft from the SSW, with a 14 to 15 second period, but the cross-shore wind keeps it messy. The energy is strong, but the conditions are marginal. This goes on through Friday and Saturday with small, choppy surf. Sunday the 26th to Tuesday the 28th is a quiet, poor stretch.
Now, the real standout is Wednesday the 29th of July. We’ve got a clean 4ft SSW groundswell, 14 second period, and the wind swings offshore from the ESE at just 9 mph. That’s glassy, clean surf – expect very good conditions. The energy is moderate (692), but the wind and swell direction line up perfectly. This is the day. Crowds are possible, so be smart.
Thursday the 30th stays clean with offshore wind, but the swell drops to 3ft. Still fun. After that, it goes tiny and poor.
Looking ahead to the first week of August, Sunday the 2nd has a long-period 5ft SSW swell (17 seconds) with light wind – marginal, but could be a sneaky one. Monday the 3rd sees clean cross-off wind and 4ft to 5ft SW swell. Then Thursday the 6th of August is the other big one: offshore wind from the east at 9 mph, with a clean 4ft SSW groundswell (15 seconds), moderate energy (665). It’s a long-range call, so less certain, but the signs are good.
The 1st of August is a mess with onshore wind, and the 4th has a 6ft SW swell but with a fresh 18 mph cross-shore wind making it lumpy. The 5th is clean but smaller.
So, the best of the bunch is Wednesday the 29th of July, with that offshore wind and clean 4ft SSW groundswell. Thursday the 6th of August is the one to keep an eye on.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 14°C on Wed afternoon, min 11°C on Thu afternoon). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat afternoon. Very mild (max 16°C on Mon night, min 13°C on Sun afternoon). Wind will be generally light. | |||||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | ||||||||||||||
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) | SW 12 | SW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 12 | SW 12 | SSW 11 | SW 12 | SW 11 | SW 13 | SW 12 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 465 | 1031 | 1244 | 1571 | 1460 | 1193 | 857 | 581 | 269 | 326 | 282 | 192 | 166 | 298 | 191 | 431 | 306 | 811 | 870 | 784 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross | cross | cross | cross-off | off |
High Tide | 2:38PM0.02m | 2:30PM0.02m | 2:42PM0.02m | 2:59PM0.02m | 2:07AM0.00m | 3:17PM0.02m | 2:36AM0.01m | 3:36PM0.02m | 3:04AM0.01m | |||||||||||
Low Tide | 1:05AM0.00m | 1:20AM0.00m | 1:51AM0.00m | 5:03AM0.00m | 00:09AM0.00m | 6:40AM0.00m | 11:30PM0.01m | 7:33AM0.00m | 11:19PM0.00m | |||||||||||
 |  | | |  |  | |  |  | |  |  | | | | | | | | | |
 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — |
 | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — |
mm | — | 1 | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 12 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 16 | 14 | 15 | 15 |
Feels °C | 8 | 6 | 6 | 5 | 7 | 8 | 8 | 8 | 12 | 11 | 12 | 12 | 12 | 11 | 10 | 11 | 12 | 9 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SW 14 | SW 14 | SSW 13 | SW 13 | SW 12 | SW 12 | SSW 11 | SW 12 | SW 11 | SW 13 | SW 12 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 65 | 1031 | 1244 | 411 | 1460 | 1193 | 857 | 581 | 269 | 326 | 282 | 192 | 166 | 298 | 191 | 431 | 306 | 811 | 870 | 784 |
Swell 2 Height (m) Direction Period (s) | SW 15 | — | — | — | — | — | — | — | S 18 | SSW 13 | SW 12 | SSW 16 | SW 15 | SSW 15 | SSW 13 | W 6 | SW 15 | W 9 | NE 3 | W 8 |
| kJ | 54 | — | — | — | — | — | — | — | 6 | 65 | 36 | 25 | 34 | 86 | 118 | 26 | 112 | 55 | 2 | 43 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 18 | S 18 | SW 16 | SW 16 | — | — | — | — | — | SW 12 | — | — |
| kJ | — | — | — | — | — | — | — | — | 6 | 6 | 10 | 10 | — | — | — | — | — | 21 | — | — |
Wind waves Height (m) Direction Period (s) | SW 12 | SW 5 | — | SSW 15 | — | — | WSW 4 | WSW 5 | WSW 5 | W 7 | W 7 | — | W 4 | WSW 5 | W 6 | WNW 6 | — | N 3 | NW 4 | — |
| kJ | 465 | 31 | — | 1571 | — | — | 8 | 17 | 31 | 50 | 38 | — | 12 | 21 | 26 | 36 | — | 2 | 5 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 722 | 13 | 13 | 13 | 11 | 14 | 499 | 17 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 17 | 14 | 100 | 14 | 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.
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