Surf Forecasts:
Trigg Beach surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 27 Aug, 5AM (local time) - 11ft (3.5m), 16s period, WSW swell with cross-shore winds.
- Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 15ft (4.5m), 18s period, WSW swell with 11,301 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 8ft (2.5m), 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 Friday (Aug 21) at 5AM. The primary swell is predicted to be 2.5m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Trigg Beach in the next 16 days are 4.5m 18s and forecast to arrive on Wednesday (Aug 26) at 2PM. 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 3s period and expected on Friday (Aug 21) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 8ft (2.5m) 15s |
| Best Surf | 5AM (Thu 27th Aug) | 11ft (3.5m) 16s |
| Most Powerful | 2PM (Wed 26th Aug) | 15ft (4.5m) 18s |
Table - best surf conditions forecast for Trigg Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s cut through the noise and get you sorted for the next couple of weeks at Trigg Beach.
The window kicks off this Friday morning with a solid pulse of WSW groundswell at 8ft, with a 15-second period and light offshore easterly breeze. The water’s sitting at 64°F, which is a touch colder than normal for this time of year, so you’ll want the hood or a good chest zip. It’s got plenty of push – the combined energy reading is a strong 2535 – and it’s clean. This is the standout of the early run.
Friday afternoon holds up at 8ft, still from the WSW, with a cross-off breeze keeping the face tidy. Saturday morning offers 7ft but the wind swings to a light cross-shore from the NNW, so it gets a bit textured, and the tide might play games. Saturday afternoon drops off with a bumpy cross-shore chop – not your friend. Sunday is a write-off for quality; the swell backs off and the wind turns cross-onshore and messy.
Now, here’s the gem hiding in the middle of the forecast: Monday the 24th. Monday morning is glassy, with a light WSW breeze, and 7ft of fast, lined-up swell from the west-southwest at 14 seconds. Combined energy is 1960, which is moderate, but the clean face makes it feel like twice the size. This is the one to plan around if you can sneak out before work. Monday afternoon fades a bit and goes onshore, so keep it to the morning.
Tuesday and Wednesday are messy – Tuesday is small and choppy, but Wednesday the 26th gets properly wild. That’s a 13ft swell with a 19-second period, but it’s blowing 25 mph cross-onshore with heavy rain. That’s not a surf day; that’s a watch-from-the-car-park day. The energy reading is a huge 10846, so there’s plenty of ocean moving, but it’ll be a washing machine.
Things settle down slowly after that. Thursday the 27th morning brings 10ft of WSW groundswell with a clean SSE cross-off breeze and a combined energy of 4963. That’s big, powerful, and for experienced surfers only – over 8ft, so if you’re not confident, sit this one out. It’s the second real standout in the run. Afternoon stays big but gets lumpy.
Friday the 28th is a nice rebound: 6ft in the morning, clean with a light SE cross-off, and 5ft in the afternoon with a light offshore. Saturday the 29th is smaller, 4ft, but clean with a moderate ENE offshore – a good day for the log or a mid-length. Sunday the 30th picks back up to 6ft but the wind gets tricky, cross-off in the morning then onshore in the afternoon.
Now, the long-range stuff, the week after that, gets messy. The 31st through the 5th of September is a run of poor surf: strong cross-onshore winds, lumpy conditions, and periods where the swell jumps to 13ft with no quality. There’s a lot of energy in the water – readings in the 4000 to 8000 range – but it’s all windblown and choppy. The last proper day with any real promise is Thursday the 27th, so if you’re chasing waves in the second week, be prepared for a waiting game. The near-term calls are solid, but those late-August and early-September options are more of a “keep an eye on it” situation.
So to wrap it up: Friday morning and Monday morning are your best bets for clean, solid surf. Thursday the 27th is bigger and more serious. The rest is either small, stormy, or just plain messy. Be smart, pick your windows, and I’ll see you out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 13°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Wed morning. Very mild (max 17°C on Tue afternoon, min 12°C on Mon morning). Winds increasing (calm on Mon morning, strong winds from the SW by Wed morning). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 15 | WSW 14 | WSW 15 | WSW 17 | WSW 16 | SW 14 | WSW 14 | WSW 13 | WSW 16 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 15 | WSW 14 | WSW 19 | WSW 17 | WSW 16 | WSW 16 | WSW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
2513 | 2243 | 2111 | 2731 | 1699 | 846 | 663 | 796 | 2864 | 1960 | 1303 | 848 | 458 | 1162 | 2118 | 10846 | 9730 | 7004 | 4963 | 3183 | 1922 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross | cross | cross-off | cross | cross-on | cross-off | glassy | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-off | cross-on | off |
High Tide | 4:59AM0.57m | 6:06AM0.59m | 6:58AM0.61m | 7:40AM0.63m | 8:16AM0.64m | 11:24PM0.31m | 8:49AM0.63m | 11:01PM0.33m | |||||||||||||
Low Tide | 3:31PM0.10m | 3:47PM0.09m | 4:04PM0.08m | 4:18PM0.08m | 4:28PM0.08m | 4:34PM0.10m | 00:54AM0.30m | 4:36PM0.12m | 2:20AM0.29m | ||||||||||||
6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | |
— | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | 3 | 2 | — | — | — |
Temp °C | 17 | 20 | 18 | 18 | 17 | 17 | 15 | 16 | 16 | 14 | 16 | 15 | 16 | 17 | 17 | 14 | 15 | 15 | 14 | 15 | 15 |
Feels °C | 14 | 18 | 14 | 17 | 15 | 13 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 7 | 10 | 8 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 16 | SW 14 | WSW 14 | WSW 13 | WSW 16 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 15 | WSW 14 | — | — | WSW 16 | WSW 16 | WSW 14 | SW 14 |
2513 | 2243 | 2111 | 2731 | 1699 | 846 | 663 | 796 | 2864 | 1960 | 1303 | 848 | 458 | 1162 | 2118 | — | — | 3339 | 4963 | 3183 | 1922 | |
Swell 2 Height (m) Direction Period (s) | SW 24 | WSW 22 | WSW 19 | — | — | WSW 20 | WSW 18 | WSW 18 | — | — | — | WSW 20 | SW 16 | — | — | — | — | — | — | — | — |
22 | 95 | 650 | — | — | 39 | 182 | 443 | — | — | — | 38 | 271 | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | SSE 4 | — | SSW 4 | SSW 6 | SSW 6 | SSW 5 | — | — | — | — | — | — | — | WSW 19 | WSW 17 | WSW 16 | — | — | — |
— | — | 5 | — | 15 | 190 | 111 | 51 | — | — | — | — | — | — | — | 10846 | 9730 | 7004 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 7 | 160 | 160 | 160 | 1624 | 0 | 0 | 397 | 279 | 288 | 197 | 22 | 198 | 409 | 160 | 0 | 233 | 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.











