Trespassers Surf Break

Lat Long: 35.13° S 136.94° E

Trespassers Surf Forecast and Surf Report

Issued: 8 pm 16 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 16 Jul 2026:

  • Best quality surf: Friday 17 Jul, 3AM (local time) - 4.5ft (1.3m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 23 Jul, 6AM (local time) - 6ft (1.9m), 14s period, SW swell with 1,554 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 3AM (local time) - 4.5ft (1.3m), 16s 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 Friday (Jul 17) at 3AM. The primary swell is predicted to be 1.3m and 16s period. 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 1.9m 14s and forecast to arrive on Thursday (Jul 23) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 23) at 6PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 17th Jul)4.5ft (1.3m) 16s
Best Surf 3AM (Fri 17th Jul)4.5ft (1.3m) 16s
Most Powerful 6AM (Thu 23rd Jul)6ft (1.9m) 14s

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


The Lowdown

Alright, surfers, Rusty here. Let’s have a look at what’s coming up for Trespassers. It’s a classic reef setup, and it’s going to be a waiting game for the most part.

We’re looking at a very long 16-day forecast window, and frankly, the first week and a half is a bit of a write-off. There’s a lot of onshore and cross-shore wind messing up the potential. The real standout, the one you want to circle on the calendar, doesn’t arrive until the very end of the month.

The first real chance of anything decent comes on Friday the 17th. The morning session is the pick of the whole first week. We’ve got a clean 4ft SSW groundswell with a long 16-second period pushing in, and the wind is a clean cross-off from the NNE at 9 mph. The wave energy is moderate (853), and it’ll be a proper reef wave. It’s an advanced wave, so you need to know what you’re doing. Crowds are sometimes a thing here, so getting out early is key. The water temp is about average for the time of year.

After that Friday morning, it goes downhill quickly. Saturday the 18th drops off to a smaller 3ft SW swell, and the wind is cross-shore. Sunday through to Wednesday the 23rd is a total write-off with poor conditions and a mix of messy cross-shore and onshore winds. Thursday the 23rd sees a jump in size with a 6ft WSW swell, but the wind is a strong cross-shore at 19 mph, making for lumpy, unappealing surf. The energy is strong (2757), but the quality is just not there for a paddle. This setup looks more interesting for kite surfing than paddle surfing.

The following week isn’t much better. Friday the 24th and Saturday the 25th are still messy with moderate to strong winds. The morning of Sunday the 26th is clean with cross-off winds, but the swell is a modest 4ft, and the energy is weak (336). It’s not a waste of time, but it isn’t a standout.

Now, here’s the real deal. The best surf on offer is at the very end of the forecast. On Monday the 27th, a solid 5ft to 6ft SW groundswell builds in with a 16-second period. The morning has light cross-shore winds and a wave energy of 1433, while the afternoon is a bit lumpier. The energy is strong and the groundswell period means it will have some punch, but it’s a long period swell, so it’s best at this reef. The real gem is Tuesday the 28th of July. The afternoon session looks excellent. The swell holds at 5ft from the SSW with a 15-second period, and the wind is a light, clean cross-off from the SE at only 6 mph. The wave energy is moderate (874), and the conditions are described as clean. This is the one to aim for. It’s not huge, but it will be clean, lined up, and perfect for advanced surfers.

The forecast then fades again into the start of August. Thursday the 30th has a bigger 5ft to 6ft SSW groundswell with a very long 18-second period, but the wind is cross-on, chopping it up. The energy is very strong (1397-1645), but the wind kills it. Friday the 31st and Saturday the 1st of August look to be back to poor conditions.

So, to sum it up: the first week is a bust. The second week has a few clean windows, but the absolute standout is the afternoon of Tuesday the 28th of July. Get in the water then.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sat afternoon, min 12°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Wed morning. Very mild (max 16°C on Sun night, min 13°C on Wed afternoon). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
1
2
1
0
1
0
0
1
0
1
1
0
1
1
0
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)
1.3
SSW
15
1.3
SSW
16
1.2
SSW
16
1
SW
14
0.9
SW
14
0.8
SW
13
0.7
SW
13
0.4
SW
20
0.6
SW
18
1
SW
16
1
SW
15
0.9
SW
14
1.1
SW
14
1.3
SW
13
1.1
SW
13
0.9
SW
12
0.6
SW
12
1.3
WSW
6
1.8
SW
15
Wave Graph
Metric surfscale
Energy kJ
791
853
657
412
313
246
166
120
252
498
432
350
471
569
431
244
108
136
1343
Wind (km/h)
10
NNE
15
NNE
10
N
15
NE
15
NNE
10
N
15
NNE
20
N
15
N
15
N
15
NNW
10
NNW
10
N
15
NNW
15
NNW
15
NNW
25
WNW
25
WSW
25
SSW
Wind State
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
on
on
cross-on
High Tide
4:18AM0.01m
4:58PM0.02m
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
Low Tide
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
10:05AM0.01m
00:47AM0.00m
1:05AM0.00m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:26
7:26
7:26
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
 mm
2
1
2
Temp °C
12
13
13
14
13
15
15
14
15
16
14
15
15
15
16
16
15
13
11
Feels °C
9
10
10
10
9
12
11
10
11
12
10
13
12
11
13
13
10
8
4
  • 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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