Surf Forecasts:
Trespassers surf forecast from 9 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 6PM (local time) - 6ft (1.9m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 14 Jul, 12AM (local time) - 8ft (2.4m), 17s period, SSW swell with 3,301 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 6PM (local time) - 6ft (1.9m), 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 Tuesday (Jul 14) at 6PM. The primary swell is predicted to be 1.9m and 16s period with a secondary swell of 0.8m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trespassers in the next 16 days are 2.4m 17s and forecast to arrive on Tuesday (Jul 14) 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 Friday (Jul 17) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 14th Jul) | 6ft (1.9m) 16s |
| Best Surf | 6PM (Tue 14th Jul) | 6ft (1.9m) 16s |
| Most Powerful | 12AM (Tue 14th Jul) | 8ft (2.4m) 17s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
Alright, this is Rusty. Let's have a look at what's on offer for Trespassers over the next couple of weeks.
Alright, straight up, the next few days are a write-off. We’ve got a lot of swell, but it’s coming in with nasty winds. Friday and Saturday are a mess with strong onshore and cross-shore winds, and the swell is just too raw and chopped up to bother with. We’re looking at a solid gap of poor conditions all the way through to the middle of the following week.
The one real standout window is Wednesday, July 15th. The morning is looking like our best bet. The wind is light and offshore from the NE, swinging cross-offshore, and the swell is a clean 5 ft from the SW. The combined energy is moderate (1163), and with that light air, it’s going to be smooth. The afternoon holds similar, just a touch smaller at 5 ft, but still clean. This is the session to aim for.
Thursday the 16th is still okay, but the swell is dropping. Morning is clean with a 4 ft SW swell and light cross-offshore winds, but the energy is dropping (618). It’s a smaller, more marginal day, but still a lot better than what came before.
After that, the wind starts to get messy again. Friday the 17th has some cross-shore chop, and by Saturday the 18th, a strong breeze is going to ruin the surface. The following week looks like a repeat of onshore winds and poor conditions, with a few days of swell around 6 ft to 7 ft in size, but it's all blown out.
So, for the full 16 days, there’s only one real standout. Be ready for Wednesday, July 15th. That’s the one with the cleanest conditions and the best swell. The rest of the time, you’re better off doing something else.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Sat morning. Very mild (max 15°C on Fri afternoon, min 12°C on Sat afternoon). Winds increasing (light winds from the NNW on Fri morning, strong winds from the WSW by Sat afternoon). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon morning. Very mild (max 15°C on Mon afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the W on Mon afternoon, calm by Tue night). | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
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) | SW 16 | SW 15 | SW 14 | WSW 8 | SW 10 | SW 13 | SW 13 | SW 13 | SW 14 | SW 16 | SW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 14 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 773 | 566 | 412 | 509 | 1604 | 2017 | 1834 | 1491 | 1595 | 2129 | 2356 | 3301 | 2696 | 2032 | 1305 | 1163 | 955 | 614 | 469 | 342 | 808 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 2:29PM0.02m | 2:43PM0.02m | 3:07PM0.02m | 3:29PM0.03m | 2:26AM0.00m | 4:01PM0.03m | 2:56AM0.00m | 4:24PM0.03m | 3:36AM0.01m | 4:44PM0.02m | |||||||||||
Low Tide | 3:20AM0.00m | 4:58AM0.00m | 6:23AM0.00m | 00:51AM0.00m | 7:20AM0.00m | 00:37AM0.00m | 8:06AM0.00m | 00:28AM0.00m | 8:47AM0.00m | 00:15AM0.00m | |||||||||||
 | |  | | |  |  |  | | | | |  | |  |  | | | | |  | |
 | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — |
 | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — |
mm | 2 | 2 | 1 | 3 | 2 | — | — | 1 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 13 | 12 | 14 | 15 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 12 | 13 | 14 |
Feels °C | 11 | 11 | 10 | 4 | 1 | 6 | 9 | 8 | 7 | 8 | 9 | 8 | 9 | 12 | 14 | 13 | 13 | 12 | 9 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SSW 14 | — | — | WSW 13 | SW 13 | SW 14 | SW 16 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 14 | SSW 16 |
| kJ | 773 | 566 | 412 | 134 | — | — | 529 | 486 | 1595 | 2129 | 636 | 3301 | 1305 | 2032 | 1305 | 1163 | 955 | 614 | 469 | 342 | 808 |
Swell 2 Height (m) Direction Period (s) | — | — | — | N 6 | — | — | — | — | SSW 17 | SSW 19 | — | SSW 17 | — | W 8 | — | — | — | S 24 | SSW 20 | SSW 18 | — |
| kJ | — | — | — | 1 | — | — | — | — | 459 | 450 | — | 200 | — | 103 | — | — | — | 11 | 149 | 280 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 22 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 45 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 4 | W 5 | WSW 8 | SW 10 | SW 13 | SW 13 | SW 13 | W 6 | SW 15 | SW 15 | SW 17 | SSW 16 | — | — | — | — | — | ENE 2 | ENE 2 | NE 2 |
| kJ | 4 | 14 | 33 | 509 | 1604 | 2017 | 1834 | 1491 | 86 | 1349 | 2356 | 1597 | 2696 | — | — | — | — | — | 1 | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 14 | 67 | 732 | 914 | 970 | 1193 | 733 | 1186 | 1034 | 1034 | 742 | 165 | 13 | 0 | 0 | 0 | 0 | 14 | 14 | 14 |
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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