Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 2 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Trespassers sea temperature is
15.1° C
0.3° 

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


Trespassers surf forecast from 13 Jul 2026:

  • Best quality surf: Wednesday 15 Jul, 3AM (local time) - 5.5ft (1.7m), 15s period, SSW swell with glassy winds.
  • Most powerful swell: Tuesday 14 Jul, 9AM (local time) - 7ft (2.2m), 16s period, SSW swell with 2,599 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 15 Jul, 3AM (local time) - 5.5ft (1.7m), 15s 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 Wednesday (Jul 15) at 3AM. The primary swell is predicted to be 1.7m 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 2.2m 16s and forecast to arrive on Tuesday (Jul 14) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Jul 19) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 15th Jul)5.5ft (1.7m) 15s
Best Surf 3AM (Wed 15th Jul)5.5ft (1.7m) 15s
Most Powerful 9AM (Tue 14th Jul)7ft (2.2m) 16s

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


The Lowdown

G’day, I’m Rusty. Let’s have a look at what’s comin’ for Trespassers.

The next couple of weeks have a bit of a slow start, but there’s a real sweet spot midweek, and then it gets pretty disappointing for a long stretch. The first proper surf on offer is from Tuesday the 14th, but honestly, it’s marginal. A solid 7.2ft SSW groundswell is rolling in with a deep 16-second period, and the combined energy is a strong 3031 – that’s a lot of power in the water. But the wind is a cross-on SW breeze at 12 mph, makin’ things choppy. Water temp is 59.2°, which is pretty much normal for this time of year, nothin’ weird here. This is a heavy, advanced reef break, so it’s not for the faint-hearted. The morning is a write-off, but by Tuesday afternoon, the wind drops to 9 mph and the swell is still 6.6ft – still cross-on, still a bit messy.

Wednesday the 15th is where it starts to get interesting. The morning sees a drop to 4.9ft, period 15 seconds, but the wind switches to a light N at 3 mph, which is cross-shore – still a bit of ripple. The afternoon is the real standout for the week. The swell sits at 4.6ft from the SW, period 14 seconds, and the wind goes glassy – WNW at 3 mph, dead calm. The combined energy is 857 – moderate – but the conditions are clean as a whistle. This is the best of the bunch for the near term. The water is still around 59.2°, normal for July.

Thursday the 16th has a clean morning with a NE cross-off breeze at 6 mph, swell 4.6ft, period 15 seconds. The afternoon gets a bit mixed with a cross-shore wind, but still surfable. Friday the 17th follows a similar pattern: clean mornings, a bit of texture in the afternoons. Swell holds around 4.3-4.6ft with a long 16-second period.

Then comes a big drop. From Saturday the 18th, the swell drops to 3ft or less, and the energy numbers fall into the 200-300 range – weak. The wind stays clean-ish at times, but the waves are just too small. This poor run keeps going for days. From the 19th to the 24th, it’s a real slog. The swell is barely 3ft, or less, with onshore and cross-shore winds in the 12-16 mph range, making it choppy and messy. The 21st (Tuesday) has a glassy morning with 3.6ft, but the period is short at 13 seconds, and the energy is low (363). It’s surfable, but not worth a special trip.

The 25th and 26th are a bit of a tease – clean, glassy conditions on the 25th afternoon with easterly wind at 0 mph, but the swell is only 2.6ft, period 13 seconds. Too small for this reef. After that, it gets even worse. From the 26th onwards, strong offshore winds (up to 25 mph), more rain, and tiny swell. The 27th has a 3.6ft SW swell but with a strong 28 mph onshore wind – that’s just a washing machine. The 28th is more of the same.

The last couple of days, the 29th (Wednesday), you get a bit of a reprieve. A 4.3ft WSW swell with a very short 7-8 second period rolls in, but the wind is glassy, and the energy is moderate (305-431). It’s clean, but the period is so short the waves will be lumpy and weak. Not a standout.

So, in a nutshell: grab Wednesday afternoon the 15th at Trespassers. That’s your best bet. The 4.6ft SW groundswell with glassy conditions is the cleanest you’ll get. Everything else is either too small, too windy, or both. There’s a solid gap from the 18th to the 24th where it’s pretty much a write-off, and then only marginal stuff after that. Long-range, the 29th could be a glassy morning session, but with that short period, temper your expectations.

Short Range Forecast

Mostly dry. Very mild (max 15°C on Tue morning, min 11°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Sun night, min 12°C on Fri morning). Wind will be generally light.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
2
3
3
3
2
3
3
2
2
1
0
0
0
1
2
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.2
SSW
16
2
SSW
16
1.7
SSW
15
1.5
SSW
15
1.4
SW
14
1.3
SSW
14
1.4
SSW
15
1.4
SSW
16
1.3
SSW
15
1.4
SSW
16
1.3
SSW
16
1.1
SW
15
0.9
SW
14
0.9
SW
13
0.7
SW
13
0.4
SSW
20
0.9
SW
18
1.1
SW
16
1.1
SW
15
1.3
SW
15
1.3
SW
13
Wave Graph
Metric surfscale
Energy kJ
2599
2007
1288
1001
857
701
807
909
791
1005
843
543
313
253
163
149
516
567
492
685
553
Wind (km/h)
20
SW
15
SW
5
SSW
5
N
5
WNW
10
NE
10
NE
10
N
15
NNE
15
NNE
10
N
15
NE
15
NNE
15
NNE
15
NNE
20
N
20
NNE
20
NNE
25
N
20
N
10
WSW
Wind State
cross-on
cross-on
cross-on
cross
glassy
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
cross-on
High Tide
4:01PM0.03m
2:56AM0.00m
4:24PM0.03m
3:36AM0.01m
4:44PM0.02m
4:18AM0.01m
4:58PM0.02m
5:06AM0.01m
5:04PM0.02m
6:01AM0.01m
5:01PM0.02m
7:05AM0.01m
4:48PM0.02m
Low Tide
00:37AM0.00m
8:06AM0.00m
00:28AM0.00m
8:47AM0.00m
00:15AM0.00m
9:24AM0.00m
00:15AM0.00m
9:56AM0.00m
00:16AM0.00m
10:23AM0.01m
00:17AM0.00m
10:39AM0.01m
00:33AM0.00m
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
7:26
7:26
7:26
7:26
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:27
5:28
5:28
5:29
5:29
5:30
5:30
 mm
Temp °C
15
15
14
13
13
13
12
13
13
13
14
14
14
16
16
14
16
17
14
17
16
Feels °C
12
12
13
12
13
12
10
10
9
10
11
11
11
12
12
9
11
12
9
14
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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