Surf Forecasts:
Trigg Beach surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 2AM (local time) - 13ft (4.0m), 15s period, WSW swell with cross-onshore winds.
- Most powerful swell: Monday 17 Aug, 11PM (local time) - 13ft (4.0m), 16s period, WSW swell with 7,895 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 13ft (4.0m), 15s 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 2AM. The primary swell is predicted to be 4.0m and 15s period with a secondary swell of 0.8m and 18s. 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 4.0m 16s and forecast to arrive on Monday (Aug 17) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Aug 16) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 18th Aug) | 13ft (4.0m) 15s |
| Best Surf | 2AM (Tue 18th Aug) | 13ft (4.0m) 15s |
| Most Powerful | 11PM (Mon 17th Aug) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Trigg Beach over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s cookin’ for Trigg Beach. It’s a beach and point setup, fairly exposed to a WSW swell, and it's been a bit of a mixed bag lately. The water’s sittin’ at 62°F — a bit colder than normal for this time of year, so you’ll want that extra rubber.
We’ve got a fair bit of swell on the cards, but the wind’s gonna be the real story here. The first real window to get amongst it doesn’t open up until Sunday the 23rd. Before that, it’s a whole lot of wind issues and swell that’s either too big or coming in messy. Sunday the 16th and Monday the 17th are a write-off — strong winds and poor conditions. Tuesday the 18th has some solid 12ft WSW swell but it’s too big for this spot, even for the experienced crew. Not worth paddling out.
The standout session looks like Sunday morning the 23rd. We’ve got a clean 6ft swell from the WSW, period around 15 seconds — that’s proper groundswell with plenty of push. The wind is offshore from the east, light, so it’ll be glassy. This is a serious session for experienced surfers. The combined energy is moderate but solid at 1368. Expect long lines and clean walls. The Sunday afternoon is also looking good with 6ft from the SW and offshore east winds, a little lighter, still clean.
Another one to pencil in is Monday the 31st. Morning session with a 5ft WSW swell, 15-second period, and offshore east-southeast winds at 6 mph. That’s a clean, fun-sized morning. Combined energy is a bit lower at 899, but for a smaller day, it’ll be well-shaped and way less crowded.
For the rest of the run, there’s a lot of onshore chop and lumpy conditions, especially from the 24th through to the 30th. The 24th drops right off, and the 25th and 26th are messy with strong cross-onshore winds and big swell that’s out of control. The 28th and 29th are a no-go with onshore gales and rain.
Overall, the best of the lot is Sunday the 23rd morning. Get on it. That’s the one.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 22°C on Sun afternoon, min 14°C on Tue morning). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Tue morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 12°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 15 | WSW 15 | WSW 16 | WSW 10 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1766 | 1847 | 2208 | 2331 | 3380 | 6764 | 6568 | 6384 | 4181 | 2691 | 3929 | 5933 | 5105 | 3812 | 2756 | 2479 | 2243 | 2111 | 1447 | 1227 | 1551 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | on | cross-on | glassy | on | on | cross | on | glassy | cross-on | cross | off | off | cross | off | glassy | cross | off |
High Tide | 10:37AM0.41m | 00:19AM0.48m | 9:30AM0.35m | 00:36AM0.52m | 8:35AM0.33m | 1:01AM0.55m | 1:44AM0.56m | 3:25AM0.56m | 4:59AM0.57m | ||||||||||||
Low Tide | 5:00PM0.23m | 6:12AM0.31m | 4:49PM0.21m | 7:36AM0.33m | 4:33PM0.19m | 3:39PM0.16m | 3:20PM0.13m | 3:31PM0.10m | 3:47PM0.09m | ||||||||||||
 | |  |  |  | | | | |  | |  | | | | | | | | | | |
 | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — |
 | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — |
mm | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 20 | 19 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 18 | 17 | 16 | 17 | 16 |
Feels °C | 13 | 16 | 16 | 13 | 9 | 10 | 13 | 13 | 12 | 14 | 13 | 14 | 14 | 14 | 14 | 13 | 16 | 14 | 15 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 15 | WSW 15 | WSW 16 | — | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | SW 16 |
| kJ | 1766 | 1847 | 2208 | 2331 | — | 6764 | 6568 | 6384 | 4181 | 2691 | 3929 | 5933 | 5105 | 3812 | 2756 | 2479 | 2243 | 2111 | 1447 | 1227 | 1551 |
Swell 2 Height (m) Direction Period (s) | — | W 20 | — | — | — | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | WSW 20 | SW 18 | WSW 16 |
| kJ | — | 202 | — | — | — | 422 | — | — | — | — | — | — | — | — | — | — | — | — | 38 | 81 | 326 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | NNW 5 | NNE 4 | NW 5 | WSW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 12 | 7 | 13 | 82 | 3380 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 340 | 27 | 340 | 1131 | 611 | 160 | 1 | 364 | 299 | 7 | 197 | 1 | 22 | 79 | 0 | 0 | 108 | 0 | 0 | 160 | 0 |
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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