Surf Forecasts:
Trespassers surf forecast from 7 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 12PM (local time) - 5ft (1.6m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 6PM (local time) - 6.5ft (2.0m), 17s period, SSW swell with 2,378 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 12PM (local time) - 5ft (1.6m), 17s 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 08) at 12PM. The primary swell is predicted to be 1.6m and 17s 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 2.0m 17s and forecast to arrive on Monday (Jul 13) at 6PM. 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 Wednesday (Jul 08) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 8th Jul) | 5ft (1.6m) 17s |
| Best Surf | 12PM (Wed 8th Jul) | 5ft (1.6m) 17s |
| Most Powerful | 6PM (Mon 13th Jul) | 6.5ft (2.0m) 17s |
Table - best surf conditions forecast for Trespassers over the next 16 days.
Updates in hr min s Forecast update imminent
Hey, Rusty here. Let’s break down Trespassers for the next couple weeks. This is a reef break for advanced surfers only, fairly consistent, and the water temp is about 60°F – pretty normal for this time of year. Optimum swell comes from the SSW, and that’s what we’re seeing.
Tuesday 7th July afternoon: clean 4ft SW groundswell (15 sec) with offshore ENE breeze at 12 mph. Wave energy is moderate (544), not blowing the doors off but rideable. Wednesday 8th: morning brings a 6ft SSW (18 sec) under cross-off ENE at 9 mph, strong energy (1837) – but the forecast says marginal tide issues. Afternoon cleans up: 5ft SSW (16 sec) with light NE cross-off at 6 mph, energy still strong (1214). That afternoon is your early window – clean and fun.
Thursday 9th: morning has 3ft SSW (15 sec) with light cross-off, but energy drops and scores are low. By afternoon the wind goes cross-shore, swell fades. Friday 10th turns onshore, and from Saturday 11th through Monday 13th we get onshore gales up to 25 mph, rain, and messy 7–8ft SW swells – total junk. Strong energy (over 1000) but useless. Tuesday 14th sees leftover 5–5ft SSW groundswell, still cross-on – marginal.
Now the real standout: Wednesday 15th July. Morning: 4ft SSW (14 sec) with light NNE cross-off at 9 mph, moderate energy (723), clean. But the afternoon is the killer: 4ft SSW groundswell, period a very long 20 seconds, combined energy of 1730 (strong), under a light NNE cross-off at 6 mph, skies clear. That’s excellent, glassy surf for experienced surfers. The long period will wrap into this reef beautifully, and crowds are possible – it’s a spot that gets some company.
After Wednesday 15th, it’s back to poor conditions. Thursday 16th through Wednesday 22nd is all cross-shore or onshore wind, with swell from 3ft to 7ft but always choppy or blown out. Energy drops, scores are zeros and ones. No other decent windows. So mark Wednesday 15th afternoon – that’s your best shot. The rest, not worth paddling out for.
Stay tuned, forecasts can shift, but for now it’s a one‑day wonder.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Very mild (max 15°C on Thu night, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Sat morning. Very mild (max 14°C on Fri night, min 12°C on Sat afternoon). Winds decreasing (strong winds from the WSW on Sat morning, light winds from the WSW by Mon afternoon). | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 8 | SW 10 | SW 13 | SW 12 | SW 12 | SW 13 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 673 | 1837 | 1214 | 768 | 443 | 486 | 906 | 773 | 566 | 412 | 653 | 1044 | 1534 | 1118 | 929 | 991 | 2032 | 2058 | 2065 | 1094 | 1420 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-on | cross-on | cross-on | on | cross-on | on | on | on | on | cross-on | on | on | cross-on | cross-on |
High Tide | 4:26PM0.02m | 2:51PM0.02m | 2:29PM0.02m | 2:43PM0.02m | 3:07PM0.02m | 3:29PM0.03m | 2:26AM0.00m | 4:01PM0.03m | |||||||||||||
Low Tide | 1:57AM0.00m | 2:19AM0.00m | 2:42AM0.00m | 3:20AM0.00m | 4:58AM0.00m | 6:23AM0.00m | 00:51AM0.00m | 7:20AM0.00m | |||||||||||||
 |  | | | |  | | |  |  | | |  |  | |  | | | | | | |
 | — | 7:30 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — |
 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 |
mm | — | — | — | — | — | — | — | — | 1 | 2 | 3 | — | 1 | 2 | 1 | — | — | — | 1 | — | — |
Temp °C | 14 | 13 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 13 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 |
Feels °C | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 10 | 10 | 10 | 6 | 3 | 7 | 7 | 8 | 9 | 9 | 10 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 18 | SW 16 | SW 16 | SW 15 | SW 14 | — | — | — | SW 13 | SSW 21 | SW 13 | SSW 16 | SSW 16 | SSW 17 | SSW 16 | SW 16 |
| kJ | 673 | 1837 | 1214 | 768 | 443 | 486 | 906 | 773 | 566 | 412 | — | — | — | 370 | 44 | 991 | 2032 | 2058 | 2065 | 1094 | 1420 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | — | — | — | SW 20 | SW 14 | — | — | — | — | — | — | — | — | S 22 | SSW 18 | SW 19 | SSW 19 | — | — | — |
| kJ | 372 | — | — | — | 97 | 297 | — | — | — | — | — | — | — | — | 9 | 276 | 96 | 203 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | NE 3 | — | — | — | — | — | — | — | — | — | SSW 22 | — | — | — | — | — |
| kJ | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | 45 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | ENE 3 | NE 3 | ENE 2 | ENE 3 | — | — | NNW 3 | WNW 4 | WNW 5 | SW 8 | SW 10 | SW 13 | SW 12 | SW 12 | WSW 6 | — | WSW 15 | W 8 | WSW 6 | WSW 6 |
| kJ | 4 | 4 | 2 | 1 | 1 | — | — | 3 | 6 | 28 | 653 | 1044 | 1534 | 1118 | 929 | 50 | — | 666 | 97 | 73 | 47 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2 | 18 | 0 | 0 | 0 | 14 | 14 | 14 | 14 | 14 | 1034 | 733 | 733 | 1184 | 1193 | 165 | 722 | 1184 | 13 | 13 |
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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