Surf Forecasts:
Dunes surf forecast from 16 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 5PM (local time) - 7ft (2.1m), 17s period, WSW swell with onshore winds.
- Most powerful swell: Tuesday 18 Aug, 11PM (local time) - 7.5ft (2.3m), 17s period, WSW swell with 2,952 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8AM (local time) - 4ft (1.2m), 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 Monday (Aug 17) at 8AM. The primary swell is predicted to be 1.2m and 16s period with a secondary swell of 0.2m and 20s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dunes in the next 16 days are 2.3m 17s and forecast to arrive on Tuesday (Aug 18) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Mon 17th Aug) | 4ft (1.2m) 16s |
| Best Surf | 5PM (Tue 18th Aug) | 7ft (2.1m) 17s |
| Most Powerful | 11PM (Tue 18th Aug) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
G'day, Rusty here. Let's have a look at what's coming down the line for Dunes.
Alright, we're looking at a 16-day run, and honestly, Dunes is a reef set-up that needs a bit of love from the elements to get good. There's nothing rideable for the first day or so – Sunday the 16th is pretty average that we'll skip that. The real story starts to build from Monday the 17th.
Monday the 17th morning is where it starts to get interesting. We've got a clean 4ft swell coming from the WSW with a 15-second period – that's proper groundswell. The energy is sitting at a moderate 811, and with S winds blowing cross-offshore, it looks real clean. That's a standout window. The water temp is sitting at a normal 74°, nothing unusual for this time of year. Monday afternoon stays clean but the swell bumps up slightly to 5ft and the energy jumps to a strong 1050. This is a reef break, so that longer period means the waves will have some push and shape. Crowds are a possibility here, so keep an eye out.
Now, Tuesday the 18th morning is the pick of the entire outlook. It's going to be magic. We have an offshore SE breeze at 9 mph, and the swell is a solid 5ft from the SW with a 17-second period and strong energy at 1472. Conditions will be glassy clean. This is good for experienced surfers – the size is over 5ft, so it's not a beginner's day. For the crew who know the reef, lock this one in.
Wednesday the 19th morning keeps the quality high, with a 7ft SW swell and 16-second period, but the swell is getting big. At over 7ft, it’s getting into expert-only territory. The energy is very strong at 2419. Offshore SE wind at 6 mph will keep it clean, but you need to know what you're doing.
The weekend of the 23rd and 24th sees the swell drop right back to around 3ft, with messy winds and moderate energy. It's not the best.
By the 30th of August Sunday morning, the swell builds again to 5ft from the WSW, with a 16-second period and strong energy at 1257. The cross-off wind is moderate, so it's clean but on the bigger side.
And finally, Monday the 31st of August morning is one to circle. It's the last real standout. We've got a 6ft WSW swell, a very long 16-second period, and very strong energy at 1684. The wind is a light cross-off from the SSW, meaning clean faces. This is for experienced surfers again due to the size.
Best bets: Tuesday 18th August morning and Monday 31st August morning. Both offer clean, strong groundswell with offshore winds.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 23°C on Sun afternoon, min 20°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Fri afternoon, min 20°C on Wed night). Winds increasing (calm on Wed afternoon, fresh winds from the SE by Thu morning). | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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) | SW 13 | SW 13 | WSW 15 | SW 16 | SW 16 | SW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | SW 15 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
257 | 249 | 770 | 1044 | 1031 | 1467 | 2460 | 2781 | 2419 | 1982 | 1117 | 1118 | 1506 | 1384 | 1101 | 849 | 623 | 597 | 507 | 379 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | cross-off | off | on | cross-off | off | cross-on | off | off | cross-off | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 1:55AM1.91m | 2:06PM1.76m | 2:20AM1.90m | 2:35PM1.61m | 2:45AM1.86m | 3:01PM1.45m | 3:09AM1.80m | 3:26PM1.30m | 3:33AM1.72m | 3:54PM1.15m | 4:02AM1.62m | 4:34PM1.01m | 4:44AM1.52m | |||||||
Low Tide | 7:41PM0.23m | 8:03AM0.29m | 8:05PM0.32m | 8:35AM0.34m | 8:24PM0.43m | 9:08AM0.43m | 8:40PM0.53m | 9:41AM0.53m | 8:52PM0.63m | 10:20AM0.65m | 9:01PM0.73m | 11:21AM0.75m | 9:00PM0.84m | |||||||
— | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 23 | 22 | 23 | 25 | 23 | 23 | 23 | 22 |
Feels °C | 22 | 22 | 20 | 20 | 19 | 19 | 21 | 22 | 19 | 23 | 20 | 17 | 21 | 19 | 22 | 25 | 21 | 23 | 23 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | WSW 15 | SW 16 | SW 16 | SW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | SW 15 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
257 | 249 | 770 | 1044 | 1031 | 1467 | 2460 | 2781 | 2419 | 1982 | 1117 | 1118 | 1506 | 1384 | 1101 | 849 | 623 | 597 | 507 | 379 | |
Swell 2 Height (m) Direction Period (s) | NW 12 | SW 16 | WSW 20 | NW 12 | NW 12 | N 5 | NNE 5 | N 6 | N 6 | N 6 | N 6 | N 7 | SSE 3 | NE 7 | NNE 8 | NNE 8 | NNE 7 | NNE 8 | WSW 20 | SW 18 |
6 | 211 | 41 | 6 | 5 | 2 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 6 | 5 | 6 | 39 | 197 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 7 | — | — | — | NW 11 | SW 22 | NNE 7 | NE 7 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 5 | 19 | 5 | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 5 | — | — | SSE 3 | S 3 | SSE 4 | SE 3 | — | — | SSE 3 | — | SW 3 | — | — | SSW 4 |
— | — | — | — | — | 5 | — | — | 2 | 7 | 8 | 2 | — | — | 2 | — | 2 | — | — | 10 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 733 | 733 | 0 | 1446 | 0 | 0 | 1446 | 15 | 15 | 787 | 227 | 227 | 1446 | 772 | 0 | 1288 | 753 | 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.











