Surf Forecasts:
Trigg Beach surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 11PM (local time) - 10ft (3.0m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 10ft (3.0m), 16s period, WSW swell with 5,140 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 11PM (local time) - 10ft (3.0m), 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 Wednesday (Aug 19) at 11PM. The primary swell is predicted to be 3.0m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trigg Beach in the next 16 days are 3.0m 16s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be cross-offshore 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 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 19th Aug) | 10ft (3.0m) 16s |
| Best Surf | 11PM (Wed 19th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 2AM (Thu 20th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Trigg Beach over the next 16 days.
The Lowdown
G’day, Rusty here, looking at the 16-day forecast for Trigg Beach. We’ve got a solid run of swell coming in from the WSW, but it’s not all clean sailing. The water temp is about average for this time of year, nothing too wild.
The first decent window opens up on Thursday, August 20. Thursday morning is the standout of the whole period. The swell is pumping at 10ft from the WSW with a 16-second period, that’s some serious groundswell energy, and the combined energy is sitin’ at 4242. But the magic is the glassy conditions with an easterly breeze. That’s going to be clean, lined-up waves, though with that size, it’s only for experienced surfers – beginners should sit this one out. The 16-second period means long gaps between sets, so paddling out is easier, but at a beach-and-point setup like Trigg, it could be a bit straight. The offshore wind is from the ESE, which is perfect for this spot.
Friday, August 21 morning is also a solid call. Still 8ft from the WSW, 15-second period, and the easterly offshore wind at 6 mph is cleaning it right up. Combined energy is 2525. It’s a bit smaller than Thursday, but still excellent for experienced surfers. Keep in mind, crowds are often an issue here, so get in early.
The weekend has some ups and downs. Saturday, August 22 morning is glassy and calm, with 7ft from the WSW and a long 17-second period. Combined energy is 2522. That’s clean, but the long period might make it a bit straight at the beach section. The wind is dead calm, which is rare. Saturday afternoon gets messy with strong cross-shore winds.
Sunday, August 23 morning has a 5ft SW swell with a 14-second period, and a cross-off SSE breeze at 9 mph. Combined energy is 1477. It’s clean, but the swell is smaller and dropping. The afternoon turns ugly with a strong SSW wind.
We hit a bit of a lull from the 25th to the 26th, with small, wind-affected surf. The swell is too small and the wind is onshore, so you’re better off staying home.
Then, Wednesday, August 26 morning sees a big spike – 12ft from the WSW with a 17-second period, combined energy of 6375. That’s a massive amount of energy, but the wind is light cross-onshore from the SW, and at 12ft, it’s only for experts. The forecast says it might be too big for this break, so be careful.
The rest of the week after that sees smaller, cleaner windows. Thursday, August 27 morning has 8ft from the WSW with a 14-second period, and an offshore ENE wind at 9 mph. That’s clean and glassy, with a combined energy of 2118. Good for experienced surfers again.
The final true standout is Monday, August 31 morning. 6ft from the WSW, 15-second period, with a clean offshore ENE wind at 9 mph. Combined energy is 2420. That’s smaller, but still solid for the experienced crew, and the wind is perfect.
Overall, the best two windows are Thursday, August 20 morning and Friday, August 21 morning. The swell is big, the wind is clean, and the energy is pumping. The long period means you’ll have to pick your takeoff spot, but it’s worth it. After that, there are workable mornings, but the crowds and wind shifts will keep you on your toes.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed morning. Warm (max 20°C on Fri afternoon, min 12°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Fri night, min 10°C on Mon morning). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | WSW 16 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 17 | WSW 16 | WSW 14 | SW 14 | SW 13 | WSW 16 | WSW 14 | WSW 14 | WSW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 4456 | 2899 | 4122 | 5140 | 4242 | 3253 | 3116 | 2513 | 2550 | 2111 | 2522 | 1699 | 961 | 975 | 1261 | 2583 | 1624 | 1314 | 711 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-off | glassy | cross | cross-off | off | cross | off | glassy | cross | cross | cross-off | cross-on | off | cross-off | cross-on | glassy |
High Tide | 1:01AM0.55m | 1:44AM0.56m | 3:25AM0.56m | 4:59AM0.57m | 6:06AM0.59m | 6:58AM0.61m | |||||||||||||
Low Tide | 3:39PM0.16m | 3:20PM0.13m | 3:31PM0.10m | 3:47PM0.09m | 4:04PM0.08m | 4:18PM0.08m | |||||||||||||
 |  |  |  | |  |  | | | | | | | | | | | | | |
 | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — |
 | 5:51 | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — |
mm | — | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 17 | 16 | 17 | 16 | 17 | 20 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 18 | 16 |
Feels °C | 13 | 16 | 14 | 16 | 15 | 14 | 13 | 14 | 18 | 14 | 16 | 13 | 11 | 12 | 12 | 11 | 13 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 17 | WSW 16 | WSW 14 | SW 14 | SW 13 | WSW 16 | WSW 14 | WSW 14 | WSW 13 |
| kJ | 4456 | 2899 | 4122 | 5140 | 4242 | 3253 | 3116 | 2513 | 2550 | 2111 | 2522 | 1699 | 961 | 975 | 1261 | 2583 | 1624 | 1314 | 711 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 24 | — | WSW 19 | — | — | — | WSW 19 | WSW 18 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 12 | — | 650 | — | — | — | 292 | 559 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 4 | — | — | — | WSW 19 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 5 | — | — | — | 210 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 3 | SSW 5 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 5 | 37 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 299 | 22 | 79 | 0 | 0 | 30 | 0 | 0 | 160 | 0 | 0 | 160 | 160 | 30 | 160 | 0 | 0 | 279 | 0 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trigg Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest