Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 2 pm 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Trespassers sea temperature is
15.1°C
0.6° 

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


Trespassers surf forecast from 6 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 6AM (local time) - 5ft (1.5m), 18s period, SSW swell with offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 9AM (local time) - 7ft (2.1m), 19s period, SSW swell with 3,001 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 6AM (local time) - 3.5ft (1.1m), 13s 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 Monday (Sep 07) at 6AM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.2m and 22s. 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 2.1m 19s and forecast to arrive on Wednesday (Sep 09) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Wednesday (Sep 09) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 7th Sep)3.5ft (1.1m) 13s
Best Surf 6AM (Tue 8th Sep)5ft (1.5m) 18s
Most Powerful 9AM (Wed 9th Sep)7ft (2.1m) 19s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at the 16-day picture for Trespassers.

This stretch is a real mixed bag, with a lot of waiting involved. The first few days are a write-off, so don't bother paddling out just yet. The real action starts to build from the 8th, with a couple of standout windows for the experienced crew. There's a big gap in the middle where the wind and swell just don't line up, and then a promising finish towards the end of the window.

The Early Days (6th & 7th): Forget it. The 6th is a total mess with onshore slop and wave energy that's just not there (1215). The swell is there but the wind's wrecking it. The 7th drops right off in size to about 3ft, but the wind switches offshore and it's clean. The energy is weak (327), so it's a tiny, clean wave for a longboard if you're desperate, but not worth a special trip.

The Main Event (8th – 10th): This is where it gets interesting. Tuesday the 8th morning is a standout. You've got a solid 5ft SSW groundswell with a very long period of 17 seconds. The wind is a light cross-offshore breeze, and the wave energy is ramping up into the moderate zone (1352). This is a proper reef wave setting up beautiful, powerful lines. The period is long, so be patient for the sets. This is for experienced surfers only. The afternoon on the 8th gets choppy and rubbish, so it's a morning mission.

The 9th is a strange one. The swell is big – 7ft to 7ft from the SSW with a massive 19-second period and very strong energy (2753). The wind is a strong cross-offshore, which will keep it clean, but that's a serious amount of water moving. That's big, powerful, and only for the most experienced. The 10th is absolute gold. Thursday morning has 6ft SSW swell, great energy (1881), and a clean cross-off breeze. The afternoon is even better – glassy, offshore conditions with 6ft SSW swell and a period of 16 seconds. The energy is still strong (1369). This is the best two-day window of the whole forecast. Get on it.

The Mid-Range Lull (11th – 14th): After that, the swell fades. The 11th and 12th are clean but small (3-4ft), and the energy drops off (598). The 13th is a bit messy with cross-shore winds, but the afternoon cleans up. The 14th is a total write-off again with strong onshore winds.

The Comeback (15th – 21st): Tuesday the 15th morning sees a big spike back up to 7ft SW swell with very strong energy (2320) and light cross-offshore winds. That's a big, powerful, clean wave for experts only. The afternoon gets blown onshore. Then we have a few days of average to poor conditions until the 21st. Monday the 21st is the final highlight. The morning has 6ft SW swell, light offshore winds, and strong energy (1366). The afternoon is a dream – glassy conditions with a 6ft SW swell that has a period of 16 seconds and very strong energy (1654). It's a clean, powerful, beautiful finish to the outlook.

The water temperature is sitting at 59°, which is about average for this time of year, so nothing unusual there.

So, to sum it up: the absolute best windows are the mornings of the 8th, the 10th (especially the afternoon), and the whole day of the 21st. The 15th morning is also a big one for the hardcore crew. Everything else is a wait-and-see.

– Rusty

Short Range Forecast

Mostly dry. Very mild (max 14°C on Sun afternoon, min 10°C on Mon night). Winds increasing (light winds from the SSE on Tue morning, fresh winds from the SSE by Tue night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Fri night, min 9°C on Wed night). Mainly fresh winds.

Sun
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
2
3
4
0
1
2
2
3
4
3
3
2
2
2
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
14
1.3
SW
14
0.9
SW
13
0.9
SW
14
1.1
SW
19
1.5
SSW
17
1.5
SSW
16
1.5
SSW
16
2.1
SSW
19
2.1
SSW
18
2.1
SSW
16
1.8
SSW
16
1.6
SSW
16
1.3
SSW
15
1.2
SSW
15
1.2
SSW
15
1.2
SSW
16
1.1
SW
16
0.9
SSW
15
1
SW
18
Wave Graph
Metric surfscale
Energy kJ
924
586
282
264
828
1352
1214
1155
3001
2768
2461
1713
1273
740
576
616
700
551
372
600
Wind (km/h)
15
WSW
20
S
15
SSE
15
SE
15
ESE
5
SSE
20
SW
30
SSE
30
SE
30
SE
20
SE
15
SE
15
ESE
20
ESE
15
ENE
10
ENE
15
ENE
20
NNE
20
NNE
15
N
Wind State
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
1:58PM0.02m
2:19PM0.02m
3:31AM0.01m
2:38PM0.02m
3:27AM0.01m
2:54PM0.02m
3:44AM0.01m
3:06PM0.02m
4:03AM0.01m
3:15PM0.02m
Low Tide
11:24PM0.00m
10:57PM0.00m
10:30PM0.00m
6:48AM0.01m
10:12PM0.00m
7:49AM0.01m
10:01PM0.00m
8:36AM0.01m
9:57PM0.00m
9:18AM0.01m
9:54PM0.00m
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:31
6:30
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:06
6:06
6:07
6:07
6:08
6:08
6:09
 mm
Temp °C
14
14
14
14
11
12
13
12
12
12
10
12
14
12
15
16
17
17
20
21
Feels °C
11
10
11
11
8
9
8
6
6
5
5
8
10
9
13
14
13
12
16
17
  • 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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