Surf Forecasts:
Trigg Beach surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 27 Aug, 8AM (local time) - 11ft (3.5m), 16s period, WSW swell with cross-shore winds.
- Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 11ft (3.5m), 17s period, WSW swell with 7,541 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 11PM (local time) - 8ft (2.5m), 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 Thursday (Aug 20) at 11PM. The primary swell is predicted to be 2.5m 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 3.5m 17s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 20th Aug) | 8ft (2.5m) 16s |
| Best Surf | 8AM (Thu 27th Aug) | 11ft (3.5m) 16s |
| Most Powerful | 2PM (Wed 26th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Trigg Beach over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s on the menu for Trigg Beach.
We’ve got a solid run of solid, powerful swell lining up, but the wind is going to be the main character in this story. The water temp is sitting at 63°, which is a bit colder than normal for this time of year, so you’ll want a good 4/3 wetsuit.
The standout morning is Thursday, August 20th. We’ve got a clean 10ft swell rolling in from the WSW with a 16-second period. That’s serious groundswell, packing a lot of punch (combined energy of 4242). The wind is glassy from the east, so Trigg Beach will be looking epic. That’s a lot of water moving, though, so this is for experienced surfers only. The wave quality is top-notch, but the crowd is often out there, so get in early.
Friday morning, August 21st, is another good call. The swell drops a touch to 8ft, still from the WSW, and the period is 15 seconds. The wind is light offshore from the east, keeping things clean. This is still a big, powerful wave for intermediates and above.
Saturday morning, August 22nd, is offering a slightly smaller 7ft groundswell (17-second period) with glassy conditions from the NE. The energy is still strong (2731), and it’ll be a well-shaped, clean wave. Get out there early before the wind shifts.
We hit a bit of a lull after that. Sunday and Monday see the wind turning onshore and the quality dropping off. The swell sticks around, but the wind is messy.
Tuesday morning, August 25th, is a bit of a washout with a small, weak 4ft swell and onshore wind. Not worth the paddle.
Then we get a proper blast of winter. From Wednesday, August 26th, through to the end of the month, the swell is pumping big, 10ft to 12ft, but it’s getting hammered by strong onshore winds. The wave energy is massive (over 6500), but it’s going to be a lumpy, blown-out mess. This is more of a kite-surfing setup than a paddle-surfing one.
The next real window of opportunity looks like Friday morning, August 28th. The wind goes glassy from the SSE, and the swell is a clean 7ft from the WSW. The energy is moderate (1551), and the conditions will be excellent for experienced surfers.
Looking further ahead into the first week of September, the pattern is still active. Monday, September 1st, has a moderate 8ft swell, but the wind is onshore. The best bet in that second week looks like Friday, September 4th, with a 10ft swell from the WSW and a light onshore wind. The morning looks cleaner, but it’s a long-range call, so keep an eye on it.
Overall, the best surf is definitely on Thursday, August 20th, and Friday, August 21st. Get on it.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Fri afternoon, min 13°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Sun afternoon, min 11°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
AM | PM | 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 16 | WSW 16 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | SW 13 | WSW 16 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 14 | WSW 14 | WSW 16 | WSW 17 | WSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4242 | 3253 | 2958 | 2513 | 2346 | 2015 | 2731 | 1699 | 947 | 752 | 1083 | 3196 | 1848 | 1283 | 751 | 365 | 908 | 1900 | 4166 | 7159 | 6634 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | off | cross | off | glassy | cross | cross | cross | cross | cross-off | cross-off | cross-on | glassy | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 3:25AM0.56m | 4:59AM0.57m | 6:06AM0.59m | 6:58AM0.61m | 7:40AM0.63m | 8:16AM0.64m | 11:24PM0.31m | ||||||||||||||
Low Tide | 3:20PM0.13m | 3:31PM0.10m | 3:47PM0.09m | 4:04PM0.08m | 4:18PM0.08m | 4:28PM0.08m | 4:34PM0.10m | 00:54AM0.30m | |||||||||||||
 | |  | | | |  | |  | | | | | | | | | | |  |  | |
 | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — |
 | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 |
Temp °C | 16 | 17 | 16 | 17 | 19 | 18 | 18 | 17 | 16 | 15 | 16 | 16 | 15 | 16 | 15 | 14 | 15 | 15 | 17 | 17 | 16 |
Feels °C | 15 | 14 | 13 | 15 | 17 | 15 | 17 | 13 | 12 | 11 | 11 | 12 | 14 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | SW 13 | WSW 16 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 14 | WSW 14 | WSW 19 | WSW 17 | — |
| kJ | 4242 | 3253 | 2958 | 2513 | 2346 | 2015 | 2731 | 1699 | 947 | 752 | 1083 | 3196 | 1848 | 1283 | 751 | 365 | 908 | 1900 | 2392 | 7159 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 24 | WSW 22 | SW 19 | — | — | WSW 20 | WSW 18 | WSW 18 | — | — | — | — | WSW 15 | — | WSW 22 | — | — | — |
| kJ | — | — | — | 22 | 95 | 715 | — | — | 38 | 184 | 553 | — | — | — | — | 152 | — | 92 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 3 | SSW 5 | S 5 | — | — | — | — | — | — | — | — | WSW 16 | W 8 | WSW 16 |
| kJ | — | — | — | — | — | — | — | 9 | 67 | 53 | — | — | — | — | — | — | — | — | 4166 | 326 | 6634 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 79 | 0 | 0 | 160 | 0 | 0 | 1624 | 160 | 160 | 1624 | 0 | 0 | 160 | 0 | 22 | 279 | 288 | 1126 | 1624 | 1624 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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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