Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 8 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Trespassers sea temperature is
14.9° C
0.1° 

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


Trespassers surf forecast from 30 Jul 2026:

  • Best quality surf: Wednesday 5 Aug, 9PM (local time) - 4ft (1.2m), 17s period, SSW swell with glassy winds.
  • Most powerful swell: Monday 3 Aug, 3AM (local time) - 6ft (1.8m), 16s period, SW swell with 1,552 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 12PM (local time) - 4ft (1.2m), 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 12PM. The primary swell is predicted to be 1.2m and 13s 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 1.8m 16s and forecast to arrive on Monday (Aug 03) 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 Wednesday (Aug 05) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 30th Jul)4ft (1.2m) 13s
Best Surf 9PM (Wed 5th Aug)4ft (1.2m) 17s
Most Powerful 3AM (Mon 3rd Aug)6ft (1.8m) 16s

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


The Lowdown

Alright, Rusty here, let’s talk about what’s coming up for Trespassers.

We’ve got a bit of a mixed bag in this 16-day window. The first few days actually open with some clean, rideable surf, but there’s a long stretch of poor conditions and strong winds that starts on August 1st and hangs around for the better part of a week. If you’re keen to get wet, your best window is the very start and then a solid upswing around August 6th.

Thursday July 30th is where we kick off. Morning surf is 4ft of SSW swell with a long 13-second period – a nice groundswell. Winds are light offshore from the ESE, keeping it clean. Combined energy is moderate at 483, and the water is sitting at 59°, which is about average for this time of year. Afternoon glass-off conditions with a 4ft SW swell. This is a solid little day. Friday July 31st drops a bit in size to 3ft, but still clean in the morning with cross-off winds. It’s surfable, just a step down. Then everything goes south.

From Saturday August 1st right through to about Tuesday August 4th, we’re dealing with strong winds, lumpy conditions, and poor surf quality. The 1st has a 4ft swell, but strong northerly winds and a long 18-second period make it tricky at this reef. Sunday the 2nd and Monday the 3rd are write-offs with onshore and cross-on winds hammering the break. There’s a long gap here where you’re better off sitting it out.

The break in the weather comes Tuesday August 4th. Winds drop right off into glassy conditions, and while the swell is small at 3ft, the 14-second period from the SW will give you some clean, fun lines. This is one of the only decent windows in that first week.

Now, the real standout is Thursday August 6th. This is your best bet. Morning and afternoon both offer 5ft of SW swell, period around 15-16 seconds, and light cross-off winds from the NE and ENE. The combined energy is strong, hitting 1676 in the morning and 1561 in the afternoon. This is excellent surf for experienced surfers. Clean conditions and solid long-period groundswell. This is the day to call in sick for.

Friday August 7th still has 5ft in the morning and 5ft in the afternoon, with cross-off winds, but the forecast flags marginal tide issues. Still worth a look if you missed Thursday. After that, it gets ugly again. Saturday the 8th is small with strong gusty winds, and Sunday the 9th through to August 14th is a write-off. We’re talking onshore winds, huge swells over 10ft with wind chop, and persistent poor conditions. The swell on the 9th is 10ft with a combined energy of 3611, but with 25 mph onshore winds, it’s just a messy, dangerous wall of water.

So, to sum it up: hit Thursday July 30th and Friday July 31st for a fun little warm-up. Skip the first week of August. The absolute best is Thursday August 6th with clean, strong groundswell. After that, the whole setup looks more interesting for kite surfing than paddle surfing, with those big, windy days.

Stay patient, and pick your day.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 14°C on Sat night, min 12°C on Thu morning). Winds increasing (calm on Thu morning, fresh winds from the N by Sat night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun afternoon. Very mild (max 14°C on Sun afternoon, min 10°C on Tue night). Winds decreasing (fresh winds from the NNW on Sun morning, calm by Tue morning).

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
1
2
1
1
1
0
0
0
0
0
0
0
2
2
2
0
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSW
13
1.1
SW
13
0.9
SSW
13
0.8
SSW
13
0.7
SW
13
0.7
SSW
18
1.1
SSW
18
1.4
SSW
17
1.4
SSW
16
1.2
SSW
16
1.2
SSW
15
1.2
SW
17
1.8
SW
14
1.6
SW
14
1.4
SW
13
1
SW
13
0.9
SW
14
0.6
SSW
20
0.8
SSW
19
1.2
SSW
18
1.2
SSW
16
Wave Graph
Metric surfscale
Energy kJ
465
394
299
215
183
276
751
1055
1005
657
584
854
1382
1019
632
311
301
280
450
817
726
Wind (km/h)
5
ESE
5
SSW
10
ENE
15
NNE
10
NNE
15
NE
25
N
20
N
25
N
35
NNW
30
WNW
30
WSW
25
SW
20
SW
15
SSW
5
SE
5
NNW
15
NE
20
NNW
15
NNW
5
N
Wind State
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
cross-off
cross-on
cross
glassy
High Tide
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
6:58AM0.01m
4:39PM0.02m
8:18AM0.01m
4:12PM0.02m
Low Tide
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
10:41AM0.01m
00:19AM0.00m
10:34AM0.01m
00:30AM0.00m
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
rain showers
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:18
7:16
7:16
7:16
7:15
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
5:38
5:39
5:40
5:42
5:42
 mm
1
Temp °C
12
12
13
13
13
12
13
13
14
13
14
14
12
13
12
12
12
11
12
14
15
Feels °C
10
10
10
9
9
8
7
8
8
5
7
7
6
7
7
10
9
8
7
12
14
  • 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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