Surf Forecasts:
Trespassers surf forecast from 2 Aug 2026:
- Best quality surf: Friday 7 Aug, 12AM (local time) - 5ft (1.6m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 9PM (local time) - 10ft (3.0m), 18s period, SW swell with 4,594 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 6AM (local time) - 3.5ft (1.1m), 12s 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 Tuesday (Aug 04) at 6AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.6m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Trespassers in the next 16 days are 3.0m 18s and forecast to arrive on Sunday (Aug 09) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Aug 08) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 4th Aug) | 3.5ft (1.1m) 12s |
| Best Surf | 12AM (Fri 7th Aug) | 5ft (1.6m) 17s |
| Most Powerful | 9PM (Sun 9th Aug) | 10ft (3.0m) 18s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk about Trespassers in feet.
The first few days are a bust. Monday the 3rd and Tuesday the 4th are blown out with onshore winds and poor conditions. Gotta wait.
First real chance is Thursday the 6th in the afternoon. The wind goes glassy, dead calm, and the swell is a clean 3ft from the SSW with a very long 16-second period. Energy is moderate at 760. A quiet, glassy session for the patient.
Friday the 7th picks up. Morning has 6ft from the SW, 16-second period, but it’s cross-shore. The afternoon cleans up with a cross-offshore breeze and 5ft surf (energy 1442). A solid, clean wave for those who can handle it.
The weekend is a mess. Saturday the 8th and Sunday the 9th are lumpy and windy. Sunday afternoon has 10ft swell, but onshore wind and strong energy at 2989 – kite surfing territory.
Early next week is still rough. Monday the 10th has big 8ft swell (energy 4677) but it’s choppy. Tuesday the 11th is smaller and still cross-onshore. Wednesday the 12th and Thursday the 13th hold 8ft to 8ft swells, but only marginal conditions.
The standout: Friday the 14th afternoon. The swell drops to a clean 6ft from the SW, 14-second period, and the wind goes glassy. Energy is strong at 1773. Excellent, clean surf for experienced surfers. Best on offer.
Saturday the 15th brings a monster: 12ft from the SW with a 19-second period. Energy is huge at 8100. Expert-only groundswell, cross-shore, but massive.
Sunday the 16th is a gem: 8ft from the SW, 17-second period, with clean offshore east wind. Energy at 4343. Excellent, clean conditions for strong surfers. Another top pick.
Monday the 17th morning stays clean with offshore wind and 6ft surf (1343 energy). Tuesday the 18th drops off with shorter-period 8ft and onshore wind.
Water temp is about average for the time of year.
Best bet: Friday the 14th afternoon for glassy 6ft, or Sunday the 16th for offshore wind and solid 8ft. Both for experienced surfers.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Sun night, min 10°C on Tue night). Winds decreasing (fresh winds from the W on Sun night, calm by Tue afternoon). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Sat morning. Very mild (max 17°C on Fri afternoon, min 12°C on Sat morning). Winds increasing (calm on Thu afternoon, strong winds from the N by Sat morning). | ||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 14 | SW 14 | SW 13 | SW 12 | SW 14 | SSW 20 | SSW 19 | SW 18 | SSW 16 | SSW 16 | SSW 16 | SW 17 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 2259 | 1382 | 1115 | 690 | 398 | 401 | 280 | 246 | 327 | 475 | 436 | 452 | 1453 | 1542 | 1433 | 988 | 917 | 860 | 1885 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | on | on | cross-off | cross | cross-on | cross | cross-on | glassy | cross-off | cross | cross-off | cross-off | cross | cross | on |
High Tide | 6:06AM0.01m | 4:45PM0.02m | 6:58AM0.01m | 4:39PM0.02m | 8:18AM0.01m | 4:12PM0.02m | 3:06PM0.02m | 2:07PM0.02m | 2:08PM0.02m | ||||||||||
Low Tide | 11:53PM0.00m | 10:22AM0.01m | 00:02AM0.00m | 10:41AM0.01m | 00:19AM0.00m | 10:34AM0.01m | 00:30AM0.00m | 00:39AM0.00m | 00:42AM0.00m | 00:36AM0.00m | |||||||||
 |  | | |  |  |  | | | | | | | | |  |  |  |  | |
 | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — |
 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 2 | 5 |
Temp °C | 14 | 13 | 12 | 12 | 12 | 12 | 11 | 13 | 14 | 14 | 14 | 15 | 14 | 15 | 17 | 16 | 13 | 15 | 13 |
Feels °C | 7 | 8 | 7 | 8 | 9 | 10 | 8 | 9 | 11 | 11 | 12 | 15 | 14 | 9 | 12 | 14 | 5 | 10 | 4 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | SW 18 | SSW 16 | SSW 16 | SSW 16 | SW 17 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SSW 15 |
| kJ | 412 | 1382 | 696 | 690 | 398 | 401 | 194 | 211 | 327 | 475 | 436 | 452 | 1453 | 1542 | 1433 | 988 | 917 | 860 | 348 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 18 | SW 15 | — | SSW 20 | SSW 19 | SSW 13 | W 5 | SSW 20 | SW 19 | WNW 4 | — | ENE 4 | WNW 6 | W 7 | ENE 5 | NE 6 |
| kJ | — | — | — | 31 | 145 | — | 280 | 246 | 120 | 2 | 38 | 303 | 2 | — | 1 | 10 | 22 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 16 | — | SW 14 | — | — | — | — | NE 2 | NNW 4 | WNW 5 | W 4 | W 4 | — | N 3 | NNW 4 | N 3 | N 4 | NNW 5 | SW 15 |
| kJ | 2259 | — | 1115 | — | — | — | — | 1 | 3 | 2 | 2 | 5 | — | 4 | 9 | 7 | 27 | 75 | 1885 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 546 | 498 | 499 | 11 | 13 | 7 | 0 | 14 | 14 | 14 | 14 | 0 | 0 | 100 | 100 | 67 | 165 | 730 | 901 |
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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