Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 2 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Trespassers sea temperature is
15.2° 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 17 Jul 2026:

  • Best quality surf: Thursday 23 Jul, 3AM (local time) - 5ft (1.6m), 15s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 23 Jul, 9PM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,356 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 6PM (local time) - 3.5ft (1.1m), 15s 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 Friday (Jul 17) at 6PM. The primary swell is predicted to be 1.1m 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 16s and forecast to arrive on Thursday (Jul 23) 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 0.6m 7s period and expected on Sunday (Jul 19) at 6PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Fri 17th Jul)3.5ft (1.1m) 15s
Best Surf 3AM (Thu 23rd Jul)5ft (1.6m) 15s
Most Powerful 9PM (Thu 23rd Jul)5.5ft (1.7m) 16s

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


The Lowdown

Alright, let’s run through it for Trespassers.

The first real shot is Friday, 17 July. The morning is the one to go for – clean 4ft SSW groundswell with a proper long 16-second period. That’s decent energy, clocking in at 853, and with a light NNE cross-off breeze, it’s gonna be glassy. Water temp is about 59°, which is normal for the season. This is an advanced reef break, so it’s not for the beginners, and crowds can pop up sometimes, so get in early. The swell direction is straight from the SSW, which is exactly what this spot wants.

The afternoon on Friday goes cross-shore and loses quality. Saturday morning is clean but small at 3ft, and then it’s a long dry spell. From Saturday afternoon through to Wednesday, 22 July, it’s mostly poor or marginal – small swell, messy wind, not worth a paddle.

Then we get a pulse on Thursday, 23 July. The morning is clean again with a 5ft SSW swell, 14-second period, and a light S cross-off breeze. That’s a solid moderate energy of 975. The afternoon gets cross-on, so the morning is the pick. It’s head-high to a bit overhead, and still an advanced reef.

After that, the wind swings onshore and it’s a washout. The rest of the run into late July and early August is blown out. Friday, 31 July, has a solid 5ft SSW swell with a long 18-second period and a strong 1245 energy, but it’s blowing a fresh 35 km/h cross-onshore, so it’s a lumpy mess. That’s kite territory, not paddle.

The standout is Friday morning, 17 July. Thursday morning, 23 July is a solid backup. Don’t expect much else.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Sun night, min 12°C on Fri afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue night. Very mild (max 15°C on Mon afternoon, min 12°C on Wed night). Wind will be generally light.

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
1
1
0
0
1
1
0
1
1
0
0
0
0
2
3
0
0
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
16
1
SW
14
0.9
SW
14
0.8
SW
13
0.6
SW
13
0.4
SW
20
0.6
SW
18
1
SW
16
1
SW
15
1
SW
14
1.2
SW
14
1.1
SW
13
1.1
SW
13
0.9
SW
12
0.7
SW
11
1.2
SW
13
1.4
SW
15
1.7
SSW
14
1.7
SW
14
1.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
657
412
313
208
136
120
252
498
432
404
581
437
418
240
126
495
905
1142
1203
1193
Wind (km/h)
10
NNW
10
NE
15
NNE
10
NNE
15
NE
20
N
15
N
15
N
15
NNW
10
NNW
10
N
10
N
10
WNW
10
WNW
15
SSW
20
SW
10
S
5
ENE
15
W
25
W
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
glassy
on
on
High Tide
5:06AM0.01m
5:04PM0.02m
6:01AM0.01m
5:01PM0.02m
7:05AM0.01m
4:48PM0.02m
8:59AM0.01m
4:19PM0.02m
3:25PM0.02m
2:38PM0.02m
Low Tide
00:15AM0.00m
9:56AM0.00m
00:16AM0.00m
10:23AM0.01m
00:17AM0.00m
10:39AM0.01m
00:33AM0.00m
10:05AM0.01m
00:47AM0.00m
1:05AM0.00m
1:20AM0.00m
clear
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:26
7:26
7:24
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:29
5:30
5:30
5:31
5:31
5:32
 mm
1
Temp °C
13
14
13
15
15
14
15
16
15
15
15
15
15
15
14
14
13
13
13
14
Feels °C
10
10
9
12
11
10
11
12
11
12
12
13
12
13
12
10
10
10
9
9
  • Map Icons:
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  • 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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