
Surf Forecasts:
Trigg Beach surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 11AM (local time) - 11ft (3.5m), 16s period, WSW swell with cross-shore winds.
- Most powerful swell: Tuesday 11 Aug, 11AM (local time) - 11ft (3.5m), 16s period, WSW swell with 5,631 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 11AM (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 11) at 11AM. The primary swell is predicted to be 3.5m and 16s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-shore 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 11) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Aug 15) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Tue 11th Aug) | 11ft (3.5m) 16s |
| Best Surf | 11AM (Tue 11th Aug) | 11ft (3.5m) 16s |
| Most Powerful | 11AM (Tue 11th Aug) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for Trigg Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a long 16-day window ahead, but don’t get too excited just yet—we’re looking at a solid, powerful groundswell hitting Trigg, but it’s going to be a bumpy ride with some serious size.
Right off the bat, Tuesday the 11th kicks off with a big, meaty 12 ft swell from the WSW, packing a massive punch—combined energy is a whopping 5662 (strong to very strong). That’s a lot of water moving. The wind is a cross-shore from the south at 15 km/h, but honestly, this is more than most can handle. The water is a touch cooler than usual for this time of year, sitting at 64°F, about 2°F colder than average—so you’ll feel that chill.
Wednesday the 12th is a different story. The swell drops to a more manageable 7 ft, still from the SW, with a long 15-second period. The real treat is the wind: glassy in the morning, blowing NNE at just 5 km/h. That’s clean as a whistle. The energy is still moderate (1983), but for experienced surfers, this is a standout morning. The afternoon stays clean but the wind shifts cross-shore, so the morning is your window.
Thursday the 13th morning keeps the goods coming: 7 ft SW swell, 16-second period, and a clean cross-off breeze from the ENE at 10 km/h. The energy is solid (2299), and the waves will have good shape. Again, this is for the experienced crew—anything over 7 ft is pushing it for beginners.
Friday the 14th morning is another clean one, with a cross-off NE breeze at 15 km/h, same 7 ft SW swell. The afternoon gets even better: glassy conditions with a light ESE breeze at 5 km/h, and the waves are still clean. Energy is around 2233. This is a solid day for anyone who knows what they’re doing.
Saturday the 15th sees the swell easing to 6 ft, but the wind picks up. Morning is clean with a cross-off NNE breeze at 20 km/h, but the afternoon turns cross-on and messy. Not the best.
Sunday the 16th shapes up nicely again. Morning has a cross-off NE breeze at 20 km/h, with 7 ft WSW swell, and the afternoon is pristine: light NE breeze at 10 km/h, cross-off, and 7 ft of clean, long-period swell. Energy is 2342. This is another top pick for the week.
Now, Monday the 17th is a write-off. Strong onshore wind from the WSW at 30 km/h, lumpy conditions, and 8 ft of blown-out swell. The surf quality is poor. Tuesday the 18th and Wednesday the 19th see the swell building back to 8 ft and 12 ft, but with onshore and cross-onshore winds, it’s just big and messy. Not for paddle surfing—this looks more like a kite-surfing setup if you’re into that.
Thursday the 20th is still big at 10 ft, but the wind is cross-shore again. Might be worth a look for the brave, but the energy is massive (4769). Friday the 21st drops to 5 ft with a clean cross-off breeze in the morning, but the afternoon is back to big and blown. Saturday the 22nd is pure chaos: 15 ft swell from the WSW, massive energy over 7500. That’s expert-only, and even then, only if the wind plays nice (it won’t).
Sunday the 23rd is a complete write-off: strong winds over 40 km/h, messy, dangerous. Avoid.
The final glimmer comes on Monday the 24th morning: the swell finally drops to 5 ft, with a clean cross-off breeze from the SSE at 10 km/h. Energy is moderate (1414). For a surf after all that chaos, it’s a welcome, gentle option. The afternoon goes to a tiny 3 ft with a very long 20-second period, but it’s cross-on and choppy, so not great.
The best on offer: Wednesday the 12th morning, with glassy conditions and 7 ft of clean, long-period SW groundswell. And Friday the 14th afternoon, with light offshore winds and 7 ft of clean waves. These are the standouts for experienced surfers.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 9°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 12°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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 | SW 16 | SW 15 | SW 14 | SW 15 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 16 | WSW 15 | WSW 15 | WSW 17 | WSW 16 | WSW 16 |
Wave Graph | |||||||||||||||||||||
5631 | 4905 | 3470 | 1983 | 1785 | 1672 | 2299 | 2626 | 2810 | 2413 | 2233 | 1885 | 1351 | 1230 | 987 | 2008 | 2119 | 2474 | 3309 | 3358 | 4001 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | off | glassy | cross | off | cross-off | cross | off | cross-off | cross-off | off | cross-off | cross-on | off | cross-off | cross-off | on | cross-on | on | on |
High Tide | 8:16AM0.75m | 9:03AM0.73m | 9:45AM0.67m | 00:13AM0.30m | 10:21AM0.59m | 00:02AM0.36m | 10:45AM0.50m | 00:07AM0.42m | 10:37AM0.41m | 00:19AM0.48m | 9:30AM0.35m | 00:36AM0.52m | |||||||||
Low Tide | 5:19PM-0.02m | 5:45PM0.04m | 5:57PM0.11m | 2:38AM0.29m | 5:45PM0.18m | 3:59AM0.29m | 5:19PM0.22m | 5:06AM0.30m | 5:00PM0.23m | 6:12AM0.31m | 4:49PM0.21m | ||||||||||
6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | |
— | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 12 | 15 | 15 | 13 | 15 | 15 | 14 | 17 | 14 | 17 | 20 | 19 | 19 | 21 | 20 | 21 | 24 | 21 | 18 | 17 | 17 |
Feels °C | 7 | 11 | 10 | 12 | 13 | 13 | 12 | 15 | 11 | 13 | 17 | 16 | 14 | 18 | 17 | 16 | 20 | 19 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 16 | WSW 15 | WSW 15 | WSW 17 | WSW 16 | WSW 16 |
5631 | 4905 | 3470 | 1983 | 1785 | 1672 | 2299 | 2626 | 2810 | 2413 | 2233 | 1885 | 1351 | 1230 | 987 | 2008 | 2119 | 2474 | 3309 | 3358 | 4001 | |
Swell 2 Height (m) Direction Period (s) | W 10 | W 9 | — | — | SW 24 | SW 21 | — | — | — | — | — | — | — | NNW 5 | — | — | WSW 20 | WSW 18 | — | — | — |
31 | 225 | — | — | 22 | 117 | — | — | — | — | — | — | — | 4 | — | — | 223 | 919 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | ENE 3 | NNE 4 | — | — | NNE 3 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 3 | 11 | — | — | 4 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 2449 | 0 | 0 | 30 | 0 | 0 | 79 | 0 | 7 | 0 | 0 | 112 | 22 | 0 | 27 | 0 | 160 | 1624 | 609 | 108 |
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.











