Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 2 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Trespassers sea temperature is
14.9° C
0.2° 

Trespassers surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Trespassers surf forecast from 28 Jul 2026:

  • Best quality surf: Monday 3 Aug, 3PM (local time) - 5ft (1.6m), 13s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 29 Jul, 3AM (local time) - 8ft (2.5m), 16s period, SW swell with 3,175 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 6AM (local time) - 4.5ft (1.3m), 13s 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 Thursday (Jul 30) at 6AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.5m and 8s. 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 2.5m 16s and forecast to arrive on Wednesday (Jul 29) at 3AM. 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 Saturday (Aug 01) at 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Thu 30th Jul)4.5ft (1.3m) 13s
Best Surf 3PM (Mon 3rd Aug)5ft (1.6m) 13s
Most Powerful 3AM (Wed 29th Jul)8ft (2.5m) 16s

Table - best surf conditions forecast for Trespassers over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the menu for Trespassers over the next couple of weeks.

It’s a slow start, but those of you with patience are going to be rewarded. The first few days are pretty average, with a bit of a wait for the real quality. The standout session looks like it’s the first week of August, but we’ll get to that.

Right now, Tuesday afternoon (28 July) is a write-off. We’ve got a 7ft SW swell with a 15-second period, but a strong 35 km/h WSW wind is ruining it. The combined energy is moderate (2130), but the conditions are poor. Wednesday (29 July) is still messy with a cross-on wind and a 7ft SSW swell, dropping to 6ft. The energy is there (2469), but it’s a choppy, marginal affair.

It’s not until Thursday morning (30 July) that we see a real shift. The swell drops to 4ft from the SSW, but the wind goes light offshore from the E at 5 km/h. The water is sitting at 59°, which is about average for the time of year. The energy is weak (494), but the word is "clean". Thursday afternoon gets even better with a glassy 4ft SSW swell (394 energy). This is the kind of session where you can just enjoy the glide.

Friday (31 July) is small but clean, with a 3ft SSW swell in the morning and a 2ft SW swell in the afternoon. The wind is light cross-offshore, and it’s clean. It’s small, but it’s rideable.

Saturday (1 August) is a step up in size but a step down in quality. A 4ft to 5ft swell from the SSW/SW, with a long 17-18 second period, but the wind is a moderate cross-shore from the NNW at 25 km/h. The energy is building (765 to 1336), but it’s a cross-chop mess. Not great.

The real standout is Sunday (2 August) and Monday (3 August). Sunday afternoon we see a 8ft SW swell with a 15-second period, but the wind is a fresh cross-shore from the S at 30 km/h. The energy is strong (2561), but it’s lumpy. Monday (3 August) is where it’s at. The morning has a 6ft SW swell, and the wind swings to a light cross-offshore from the SSE at 15 km/h. The energy is high (1459), and it’s clean. Monday afternoon drops to 5ft from the SW, but it’s still clean and the energy is solid (919). This is the best-looking window for a proper session.

After that, Tuesday (4 August) and Wednesday (5 August) are clean and small again, with moderate offshore winds (4ft to 3ft swells). The energy is weak (389 to 677), but the conditions are good.

Then we get into a longer-range promise. The second week of August sees a big jump in size. Friday (7 August) morning and afternoon have a solid 5ft SW swell, a 16-second period, and a clean cross-offshore wind from the N. The energy is building (1067 to 1465). This looks promising.

Saturday (8 August) is an even bigger day: 8ft to 6ft SW swell, 16-second period, and a clean cross-offshore wind. The energy is strong (2904 to 1873). This is a big, clean swell, but at 8ft, it’s getting into expert territory. The long period (16s) means it’ll be a proper groundswell, so expect some power and long waits between sets.

Sunday (9 August) is a wildcard. We’ve got an 8ft to 10ft SW swell, but the wind is a strong breeze from the NNE at 40 km/h. The energy is very strong (1784 to 3069), but it’s a clean cross-offshore wind. This is big, powerful, and for experts only.

The outlook turns sour after that. From Monday (10 August) onwards, it’s a washout. The swell is huge (12ft), but the wind is onshore and strong (30 to 50 km/h), with rain. The energy is extreme (7658 to 8119), but the conditions are blown out and dangerous. The waves will be big and messy, more of a kite surfing show than a paddling session. This continues through to Wednesday (12 August) with no let-up.

So, to sum it up: the best bet is Monday (3 August) for a clean, solid session, and keep an eye on Saturday (8 August) and Sunday (9 August) for a big, powerful, expert-only swell if the wind holds. The last few days of the outlook are a loss.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Very mild (max 14°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Thu afternoon).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sat night. Very mild (max 15°C on Sat night, min 10°C on Sat night). Winds increasing (light winds from the NNE on Fri afternoon, strong winds from the SSW by Sat night).

Tue
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
1
2
2
2
2
1
2
1
0
2
0
0
1
3
3
3
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
SW
15
2.3
SW
16
2.1
SSW
16
1.8
SSW
15
1.5
SSW
14
1.2
SSW
13
1.1
SW
13
0.9
SW
13
0.8
SSW
13
0.7
SW
14
0.7
SSW
18
1.1
SSW
17
1.5
SSW
18
1.4
SSW
16
1.3
SSW
16
2.3
SW
15
2.1
SW
15
1.9
SW
14
1.6
SW
13
1.4
SW
13
Wave Graph
Metric surfscale
Energy kJ
1889
2497
2178
1409
845
465
394
249
215
189
276
742
1324
1018
778
2268
2021
1459
919
613
Wind (km/h)
35
WSW
25
SSW
15
SSW
15
SW
10
SSW
5
E
5
SSW
10
NE
15
NNE
15
N
20
NNE
25
NNW
25
NNW
25
NNW
35
SSW
30
S
20
SSE
15
SSE
15
SSE
15
SE
Wind State
on
cross-on
cross-on
cross-on
cross
off
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
High Tide
3:04AM0.01m
3:53PM0.02m
3:34AM0.01m
4:03PM0.02m
4:03AM0.01m
4:21PM0.02m
4:39AM0.01m
4:32PM0.02m
5:23AM0.01m
4:40PM0.02m
6:06AM0.01m
4:45PM0.02m
Low Tide
11:19PM0.00m
8:09AM0.00m
11:18PM0.00m
8:40AM0.00m
11:23PM0.00m
9:07AM0.00m
11:26PM0.00m
9:34AM0.00m
11:41PM0.00m
9:59AM0.01m
11:53PM0.00m
10:22AM0.01m
00:02AM0.00m
light rain
cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:18
7:18
7:16
7:16
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:37
5:37
5:38
5:38
5:39
5:40
 mm
1
1
1
Temp °C
14
11
12
12
12
12
12
12
12
12
12
13
14
15
11
12
12
12
13
12
Feels °C
7
4
7
7
8
9
10
8
8
8
8
7
8
10
3
4
7
7
9
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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