Trigg Beach Surf Break

Lat Long: 31.87° S 115.74° E

Trigg Beach Surf Forecast and Surf Report

Issued: 1 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trigg Beach sea temperature is
17.5° C
1.3° 

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


Trigg Beach surf forecast from 18 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 8PM (local time) - 11ft (3.5m), 16s period, WSW swell with cross-onshore winds.
  • Most powerful swell: Tuesday 18 Aug, 8PM (local time) - 11ft (3.5m), 16s period, WSW swell with 5,968 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 8PM (local time) - 11ft (3.5m), 16s period with WSW swell.

Best Forecast Surf Conditions for Trigg Beach this week:

The surf forecast for Trigg Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 8PM. The primary swell is predicted to be 3.5m and 16s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Trigg Beach in the next 16 days are 3.5m 16s and forecast to arrive on Tuesday (Aug 18) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Aug 21) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Tue 18th Aug)11ft (3.5m) 16s
Best Surf 8PM (Tue 18th Aug)11ft (3.5m) 16s
Most Powerful 8PM (Tue 18th Aug)11ft (3.5m) 16s

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


The Lowdown

G’day, Rusty here, and I’ve been staring at the charts for Trigg Beach. It’s a bit of a mixed bag over the next couple of weeks, but there are some solid windows for the experienced crew. The water temp is sitting at 64°F, which is a touch colder than we’d usually expect for this time of year—about 2°F below average, so you’ll want a decent spring suit.

The real action kicks off this Thursday morning, the 20th of August. That’s your standout. We’ve got a 10ft west-southwest groundswell rolling in with a long 16-second period, and the wind is glassy—absolute perfection. The combined energy is strong at 4242, so there’s plenty of power. This is for experienced surfers only, as it’s a solid 10ft, and with that long period, it’ll be lining up best on the point. Crowds are often a thing here, but on a Thursday morning like this, you might get lucky.

The next morning, Friday the 21st, is also worth a paddle. Clean offshore easterly wind at 6 mph, with a 8ft west-southwest swell at 15 seconds. Energy is still strong at 2513, and it’s another one for the confident surfer.

Saturday morning the 22nd offers a smaller option at 7ft, but with a very long 17-second period and a light cross-offshore breeze. The energy is still solid at 2492, and it’ll be clean. Again, too big for beginners.

After that, there’s a bit of a lull. Sunday the 23rd through Tuesday the 25th see some messy, windy conditions and dropping swell. Tuesday the 25th is a write-off, with onshore gusts up to 25 mph and rain—best to stay home.

Thursday the 27th of August brings a return to form. Morning session has a nice cross-offshore breeze for a 7ft west-southwest swell, and by the afternoon it turns glassy with a 6ft south-west swell. That afternoon session is a real gem for the experienced surfer—clean, glassy, and manageable.

Looking further ahead, Friday the 28th of August is a good one for the intermediate crowd. Clean offshore easterly wind at 12 mph, dropping to 6 mph in the afternoon, with a smaller 4ft swell. Combined energy is moderate at 594–735, so it’s not punchy, but it’s clean and fun.

The first week of September has some promise, but it’s a long way out. Tuesday the 1st of September shows a 8ft west-southwest swell with a very long 17-second period, but the wind is a bit messy. Still, the energy is very strong at 3995, so keep an eye on it.

The biggest gap in decent surf is from around the 23rd to the 25th of August, then again from the 30th to the 31st, where conditions are marginal or poor. But with Trigg being fairly consistent, it rarely stays flat for long.

The only real standout to point your board at is Thursday morning the 20th of August—glassy, big, powerful, and clean. That’s the one.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Tue night. Very mild (max 17°C on Wed morning, min 12°C on Fri morning). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat afternoon. Very mild (max 19°C on Fri afternoon, min 13°C on Sat night). Mainly fresh winds.

Tue
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
0
3
3
5
5
3
4
4
2
4
4
2
2
3
2
4
3
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
WSW
16
3
WSW
16
2.5
WSW
15
3
WSW
15
3
WSW
16
3
WSW
16
2.5
WSW
16
2.5
WSW
16
2.4
WSW
15
2.4
WSW
14
2.2
WSW
14
2.1
WSW
17
1.9
WSW
16
1.8
SW
14
1.5
WSW
14
1.6
WSW
13
2.3
WSW
16
2
WSW
14
1.8
WSW
14
1.5
WSW
13
Wave Graph
Metric surfscale
Energy kJ
6651
4456
2899
4122
5140
4242
3480
3116
2513
2412
2082
2492
1699
1321
908
875
2583
1624
1265
769
Wind (km/h)
15
WNW
20
WNW
5
NW
15
WSW
10
ESE
5
ESE
15
SSW
10
ESE
10
E
20
S
10
E
5
NNE
20
S
25
S
15
S
15
SW
10
SE
10
N
15
W
20
NW
Wind State
cross-on
on
cross-on
on
cross-off
glassy
cross
cross-off
off
cross
off
cross-off
cross
cross
cross
cross-on
cross-off
cross
on
cross-on
High Tide
1:01AM0.55m
1:44AM0.56m
3:25AM0.56m
4:59AM0.57m
6:06AM0.59m
6:58AM0.61m
Low Tide
4:33PM0.19m
3:39PM0.16m
3:20PM0.13m
3:31PM0.10m
3:47PM0.09m
4:04PM0.08m
4:18PM0.08m
part cloud
light rain
rain showers
clear
rain showers
clear
part cloud
clear
clear
clear
clear
part cloud
rain showers
part cloud
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:47
6:46
6:45
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:52
5:52
5:52
5:53
5:53
5:54
 mm
1
2
1
1
Temp °C
16
16
17
17
16
16
17
16
17
19
18
19
18
16
15
16
16
16
16
16
Feels °C
12
12
16
14
15
15
14
13
15
17
14
17
15
11
12
14
15
14
13
13
  • 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 Trigg Beach Surf forecast

The above surf forecast table for Trigg Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trigg Beach can be found by selecting the local surf guide option on the grey menu. Our Trigg Beach 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 (Trigg Beach) 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 Trigg Beach 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 Perth City Coast? If you are looking for accommodation near Trigg Beach, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 14 km (9 miles) away. Other places in and around Perth City Coast where you can find information about places to rent, and car hire include Fremantle which is 21 km (13 miles) away, Canning Vale, Gosnells and Kwinana.

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