
Surf Forecasts:
Trespassers surf forecast from 14 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 3AM (local time) - 5.5ft (1.7m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 15 Jul, 12AM (local time) - 5.5ft (1.7m), 15s period, SSW swell with 1,288 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 3AM (local time) - 5.5ft (1.7m), 15s 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 15) at 3AM. The primary swell is predicted to be 1.7m and 15s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trespassers in the next 16 days are 1.7m 15s and forecast to arrive on Wednesday (Jul 15) 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 6s period and expected on Saturday (Jul 18) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 15th Jul) | 5.5ft (1.7m) 15s |
| Best Surf | 3AM (Wed 15th Jul) | 5.5ft (1.7m) 15s |
| Most Powerful | 12AM (Wed 15th Jul) | 5.5ft (1.7m) 15s |
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 run of surf coming up at Trespassers, but it’s not all smooth sailing. The water temp is sitting right around average for the time of year at 59°, so nothing wild there.
The real action kicks off on Tuesday the 14th, but conditions are a bit junky that afternoon. It’s a clean 7 ft SSW groundswell running with a very long 16-second period, and the combined energy is strong (2413). That’s a lot of power. But the wind is cross-on, making it choppy. For the advanced crew, it’s doable, but it’s not the pick.
Wednesday the 15th morning is where it starts to get interesting. The swell drops to a still-chunky 5 ft from the SSW, period at 15 seconds, and the wind swings around to a light cross-off from the NNE. That’s clean. The energy is still moderate (1001). This is a good window for the experienced surfer who wants some punch without the mess.
Thursday the 16th and Friday the 17th mornings are also looking clean with light cross-off winds, holding 5 ft to 4 ft SSW swell, and those long 15-16 second intervals. The energy stays moderate (807 to 853). Consistent, clean, and user-friendly for the advanced crowd.
The standout of the whole run though? It’s a two-way tie, but I’m leaning towards Thursday the 23rd. That morning you’ve got a clean 6 ft SSW groundswell with a 15-second period and a moderate cross-off breeze from the SE. The combined energy is up at 1396 (strong). That’s a proper groundswell with good shape, and the wind is going to keep it glassy. It’s an advanced wave, but for those who know the reef, that’s the one to circle.
The other real highlight is Friday the 24th. That morning and afternoon both show clean 5 ft SSW swell, still 15 seconds, with light offshore winds (ESE). The energy is moderate (893). It’s a touch smaller than the 23rd, but with true offshore wind, the waves will be peeling nicely. Less grunt, more finesse.
After the 25th, things drop off. Sunday the 26th onward into the end of the month sees the swell fade to under 3 ft, and winds get messy or too strong. There’s a long gap of poor conditions from the 26th right through to the 29th, with only small, weak, or choppy waves. Not worth paddling out for.
Bottom line: the best windows are the morning of Thursday the 23rd for bigger, powerful surf, and Friday the 24th for cleaner, slightly smaller waves with offshore wind. The 15th through the 17th offer good, consistent backup. Don’t sleep on the 23rd.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Sun night, min 13°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||
Tue 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | SSW 16 | SSW 15 | SSW 15 | SW 14 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 20 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 |
Wave Graph | |||||||||||||||||||||
2007 | 1288 | 1001 | 857 | 711 | 807 | 1081 | 791 | 853 | 720 | 489 | 308 | 290 | 163 | 97 | 252 | 427 | 441 | 466 | 534 | 545 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross-on |
High Tide | 2:56AM0.00m | 4:24PM0.03m | 3:36AM0.01m | 4:44PM0.02m | 4:18AM0.01m | 4:58PM0.02m | 5:06AM0.01m | 5:04PM0.02m | 6:01AM0.01m | 5:01PM0.02m | 7:05AM0.01m | 4:48PM0.02m | 8:59AM0.01m | ||||||||
Low Tide | 00:37AM0.00m | 8:06AM0.00m | 00:28AM0.00m | 8:47AM0.00m | 00:15AM0.00m | 9:24AM0.00m | 00:15AM0.00m | 9:56AM0.00m | 00:16AM0.00m | 10:23AM0.01m | 00:17AM0.00m | 10:39AM0.01m | 00:33AM0.00m | 10:05AM0.01m | |||||||
— | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:26 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | |
5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | 5:31 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 14 | 13 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 14 | 16 | 17 | 15 | 17 | 17 | 14 |
Feels °C | 12 | 13 | 12 | 13 | 11 | 9 | 10 | 9 | 10 | 11 | 11 | 11 | 11 | 12 | 9 | 12 | 12 | 10 | 13 | 14 | 9 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SW 14 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 |
2007 | 1288 | 1001 | 857 | 711 | 807 | 1081 | 791 | 853 | 720 | 489 | 308 | 290 | 163 | 92 | 252 | 427 | 441 | 466 | 534 | 545 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | — | — | — | — | — | — | — | NW 4 | WNW 7 | WNW 7 | WNW 7 | SW 22 | SW 20 | SW 12 | W 9 | W 4 | NE 4 | — | — |
406 | — | — | — | — | — | — | — | — | 1 | 9 | 9 | 9 | 18 | 97 | 73 | 15 | 1 | 2 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 22 | SW 19 | ENE 4 | WSW 12 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 15 | 1 | 27 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 2 | NNE 3 | — | NNE 3 | — | — | NE 3 | NE 3 | — | NNE 3 | N 4 | N 3 | NNW 3 | NW 4 | N 2 | NW 3 |
— | — | — | — | — | 1 | 1 | — | 1 | — | — | 1 | 2 | — | 3 | 6 | 2 | 4 | 9 | 1 | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 499 | 13 | 0 | 14 | 0 | 0 | 14 | 0 | 0 | 2 | 0 | 14 | 0 | 18 | 79 | 79 | 79 | 67 | 19 | 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.











