Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 8 pm 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trespassers sea temperature is
14.5° C
0.5° 

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


Trespassers surf forecast from 1 Aug 2026:

  • Best quality surf: Friday 7 Aug, 12AM (local time) - 5ft (1.6m), 17s period, SW swell with offshore winds.
  • Most powerful swell: Monday 3 Aug, 3AM (local time) - 7ft (2.2m), 16s period, SW swell with 2,295 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 12PM (local time) - 3.5ft (1.1m), 14s 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 12PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.6m and 15s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Trespassers in the next 16 days are 2.2m 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 0.8m 4s period and expected on Saturday (Aug 08) at 3PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 4th Aug)3.5ft (1.1m) 14s
Best Surf12AM (Fri 7th Aug)5ft (1.6m) 17s
Most Powerful 3AM (Mon 3rd Aug)7ft (2.2m) 16s

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


The Lowdown

Alright, let’s talk Trespassers. This is a proper reef break, and it’s got a split personality. First few days are a washout, but if you’ve got patience, there’s some magic in the second week.

The start is grim. Sunday the 2nd and Monday the 3rd are a total loss – messy, lumpy, onshore wind, and the swell is just junk. You’d be mad to paddle out. Tuesday the 4th, the morning is still marginal, but the afternoon goes glassy with a 3ft swell from the SW, period of 14 seconds. The energy is weak (407), but it’s clean. That’s the first whisper.

Wednesday the 5th and Thursday the 6th are a tease. Wednesday morning has a 2ft, 19-second groundswell – crazy long period – but it’s small. That long period will make it break straight and fat on the reef, but it’s clean. Thursday afternoon is the real stand-out of the first week: 4ft from the SW, 19-second period, clean cross-offshore winds, and the energy jumps to 984. That’s a beautiful, lined-up reef wave. Small but pure.

Friday the 7th is when it gets serious. Morning is clean with 6ft, 19-second SW groundswell, energy at 2008. That’s moderate energy, and those long-period swells are what this reef loves. The afternoon is even better: 5ft, 17 seconds, clean, and the forecast says it’s excellent for experienced surfers. This is the first true highlight.

Then we hit a wall. Saturday the 8th through to Wednesday the 12th is a nightmare. Strong winds, onshore, messy, huge lumpy swells up to 12ft. The energy hits 5191 on Monday the 10th, but it’s howling onshore. That’s for kite surfers, not paddle surfers.

The second week brings the payoff. Thursday the 13th is a reset: clean, 5ft from the SW, 13 seconds, gentle breeze. A good, clean wave. But the true gold is Friday the 14th. Morning: 7ft, SSW, 17-second groundswell, glassy. Afternoon: 6ft, SSW, 16 seconds, glassy. Both are rated excellent for experienced surfers, with energy around 2309 and 1417. That’s the standout. Glassy, long-period, reef break, moderate energy. A dream.

Saturday the 15th is also a cracker: glassy afternoon, 6ft, 16-second SW swell, energy at 1831. Excellent conditions. The weekend of the 14th and 15th is the peak. The 16th and 17th ease off, but still clean and fun. The water temperature is about average for this time of year.

The crowds at Trespassers? It says “sometimes”, so you might have a few crew out, but on those glassy, quality days, it’ll be worth sharing the take-off zone.

Bottom line: the first week is a bust until Thursday and Friday. The true standouts are Friday the 14th and Saturday the 15th – glassy, long-period groundswell, perfect reef conditions. Mark your calendar.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun afternoon. Very mild (max 14°C on Sun afternoon, min 11°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, calm by Tue afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 15°C on Fri afternoon, min 10°C on Tue night). Wind will be generally light.

Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
2
1
2
2
1
0
2
2
3
4
3
4
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSW
16
1.2
SSW
16
1.2
SSW
15
2.1
SW
16
2.1
WSW
14
2
WSW
14
1.5
SW
13
1.1
SW
12
1
SW
14
0.6
SSW
20
0.7
SSW
19
0.7
SW
18
0.9
SSW
17
0.9
SW
16
1.1
SW
19
1.6
SW
17
1.7
SW
19
1.6
SW
17
1.4
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1005
657
592
2113
1874
1453
769
398
407
280
325
327
481
358
920
1384
2008
1450
981
Wind (km/h)
25
NNW
30
NNW
30
WNW
35
WSW
25
SW
25
SW
15
SSW
5
SW
5
W
10
NE
15
NNE
15
NNW
10
NE
15
ENE
5
NE
15
ENE
15
NE
15
NE
20
NE
Wind State
cross
cross-on
on
on
cross-on
cross-on
cross
cross-on
glassy
cross-off
cross-off
cross-on
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
High Tide
5:23AM0.01m
4:40PM0.02m
6:06AM0.01m
4:45PM0.02m
6:58AM0.01m
4:39PM0.02m
8:18AM0.01m
4:12PM0.02m
3:06PM0.02m
2:07PM0.02m
Low Tide
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
00:39AM0.00m
00:42AM0.00m
clear
cloud
rain showers
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:16
7:16
7:15
7:13
7:13
7:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:40
5:42
5:42
5:43
5:44
 mm
1
Temp °C
13
12
14
13
13
12
12
11
11
11
12
13
13
14
14
14
14
15
15
Feels °C
7
4
7
6
7
6
8
9
9
9
9
9
10
11
12
10
11
12
11
  • 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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