Surf Forecasts:
Dunes surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 27 Aug, 5AM (local time) - 7ft (2.1m), 17s period, SW swell with cross-shore winds.
- Most powerful swell: Thursday 27 Aug, 5AM (local time) - 7ft (2.1m), 17s period, SW swell with 2,523 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 4.5ft (1.4m), 16s period with SW swell.
Best Forecast Surf Conditions for Dunes this week:
The surf forecast for Dunes 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 1.4m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Dunes in the next 16 days are 2.1m 17s and forecast to arrive on Thursday (Aug 27) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Friday (Aug 28) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 4.5ft (1.4m) 16s |
| Best Surf | 5AM (Thu 27th Aug) | 7ft (2.1m) 17s |
| Most Powerful | 5AM (Thu 27th Aug) | 7ft (2.1m) 17s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, Rusty here, and I've been staring at the charts for Dunes. This is a classic reef set-up we're looking at, and the next couple of weeks are a proper mixed bag.
The pattern kicks off straight away this Friday the 21st morning. There's some decent energy in the water, with a moderate combined swell energy of (894). We're looking at a clean 5 ft of SW groundswell, a long 16-second period pushing through. The wind is a cross-offshore breeze, so expect some clean, lined-up waves. It's a solid start to the weekend for an intermediate surfer.
Saturday morning the 22nd is the standout of the first week. The wind goes glassy, dead calm. The swell is a touch smaller at 4 ft from the SW, but with that 14-second period, the quality should be pure. If you can get out there early, you'll find quiet, perfect little reef runners. Crowds? Yeah, they'll show up at a spot like this when it's this clean, so get on it early.
Sunday the 23rd is a write-off. The wind is howling, and the quality is gone. Monday the 24th morning looks interesting again with a clean 3 ft and a very long 16-second period, offshore wind. The energy is moderate (620), and it will be peeling well, but it's small. We then hit a rough patch from Tuesday through to the end of the week. A lot of wind and chop spoiling things.
The real, proper stand-out for the whole outlook is Thursday, the 3rd of September, in the morning. The combined swell energy jumps to a strong (1111) – a solid jump in power. Swell comes in at 4 ft from the SW, period a moderate 13 seconds, but the wind is a light cross-offshore breeze, making for silky clean conditions. The report says it’s excellent for experienced surfers, and that’s no lie. That's the session to lock in if you can.
There's a couple of other moments worth a look. The morning of Tuesday the 1st of September has a big 7 ft of WSW swell, but the forecast calls it too big for this break. It's going to be a washing machine for all but the top crew. Keep an eye on the morning of Wednesday the 2nd of September, with a 5 ft SW swell and a glassy offshore wind. It won't have the power of the Thursday session, but it'll be clean and fun.
The water temperature feels pretty average for the time of year, so no surprises diving in at Dunes.
So, to keep it short: Saturday morning for a glassy, clean session. But Thursday the 3rd of September morning is the one that has my head turning. Mark it.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sun afternoon, min 19°C on Sat night). Winds increasing (calm on Sat morning, fresh winds from the S by Sun morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 18°C on Sun night). Winds decreasing (strong winds from the S on Sun night, calm by Wed afternoon). | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 14 | WSW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 16 | SW 15 | SW 18 |
Wave Graph | |||||||||||||||||||
1129 | 894 | 733 | 631 | 529 | 514 | 507 | 519 | 395 | 241 | 447 | 666 | 597 | 406 | 394 | 212 | 477 | 503 | 1952 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross-off | glassy | cross | cross-off | cross-off | cross-off | cross-off | off | cross | cross-off | cross-off | cross-on | cross | off | cross-on | cross-off |
High Tide | 3:33AM1.72m | 3:54PM1.15m | 4:02AM1.62m | 4:34PM1.01m | 4:44AM1.52m | 6:09AM1.41m | 11:42PM1.13m | 8:41AM1.42m | 11:16PM1.26m | 10:00AM1.54m | 11:27PM1.40m | ||||||||
Low Tide | 8:52PM0.63m | 10:20AM0.65m | 9:01PM0.73m | 11:21AM0.75m | 9:00PM0.84m | 1:32PM0.79m | 3:31PM0.69m | 2:15AM1.11m | 4:20PM0.56m | 3:57AM0.97m | 4:53PM0.43m | 4:43AM0.80m | |||||||
— | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | |
6:09 | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 22 | 24 | 24 | 23 | 23 | 22 | 21 | 25 | 23 | 19 | 24 | 22 | 22 | 23 | 22 | 21 | 22 | 21 |
Feels °C | 26 | 21 | 24 | 22 | 25 | 22 | 21 | 17 | 20 | 17 | 15 | 19 | 16 | 18 | 18 | 20 | 22 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 14 | WSW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 16 | SW 15 | SW 18 |
1129 | 894 | 733 | 631 | 529 | 514 | 507 | 519 | 395 | 241 | 447 | 666 | 597 | 406 | 394 | 212 | 477 | 503 | 1952 | |
Swell 2 Height (m) Direction Period (s) | N 8 | NNE 8 | NE 8 | NNE 7 | NNE 7 | SW 19 | SW 18 | NE 7 | WSW 20 | WSW 18 | SW 13 | SSE 3 | SW 7 | SW 7 | — | NE 4 | NE 5 | WSW 21 | NE 6 |
5 | 6 | 9 | 5 | 4 | 127 | 154 | 2 | 37 | 123 | 136 | 1 | 35 | 16 | — | 6 | 4 | 171 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | — | NW 11 | NW 11 | SW 20 | NNE 7 | NNE 7 | NW 11 | NE 7 | N 11 | SW 8 | N 6 | — | — | — | SW 16 | SW 22 | NE 5 | — |
— | — | 5 | 5 | 65 | 5 | 5 | 5 | 2 | 2 | 37 | 1 | — | — | — | 69 | 20 | 1 | — | |
Wind waves Height (m) Direction Period (s) | SSE 2 | ESE 4 | — | — | — | — | SW 3 | S 4 | SW 6 | S 4 | SE 4 | SW 3 | SSE 4 | ESE 3 | NE 4 | — | WSW 2 | SW 4 | SSW 5 |
1 | 5 | — | — | — | — | 5 | 14 | 43 | 59 | 13 | 2 | 12 | 5 | 6 | — | 1 | 12 | 41 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 1128 | 0 | 0 | 1446 | 1288 | 1288 | 1446 | 660 | 0 | 1447 | 660 | 227 | 1446 | 660 | 0 | 1288 | 1288 |
Best forecast wave conditions in North West WA | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Dunes Surf forecast
The above surf forecast table for Dunes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dunes can be found by selecting the local surf guide option on the grey menu. Our Dunes 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 (Dunes) 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 Dunes 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 North West WA? If you are looking for accommodation near Dunes, camping, hotels and holiday cottages in North West WA, consider staying in Exmouth which is 15 km (9 miles) away.











