Surf Forecasts:
Dunes surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11AM (local time) - 4.5ft (1.3m), 14s period, WSW swell with offshore winds.
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 6ft (1.9m), 17s period, SW swell with 1,984 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 8AM (local time) - 4.5ft (1.4m), 15s 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 Thursday (Aug 20) at 8AM. The primary swell is predicted to be 1.4m and 15s 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 1.9m 17s and forecast to arrive on Thursday (Aug 27) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 20th Aug) | 4.5ft (1.4m) 15s |
| Best Surf | 11AM (Thu 20th Aug) | 4.5ft (1.3m) 14s |
| Most Powerful | 2AM (Thu 27th Aug) | 6ft (1.9m) 17s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's coming up for Dunes.
We’ve got a solid run of surf on the cards starting this Thursday morning, August 20th. The water is sitting at 75°, which is a touch warmer than normal for this time of year, so you might not need the thickest wetsuit.
The opening salvo is Thursday morning with a clean 4ft swell from the WSW, a period of 14 seconds, and a light offshore breeze from the SE. The combined energy is moderate at 1020. This is excellent for experienced surfers. Thursday afternoon gets a bit questionable with an onshore breeze, but the real standout is Friday afternoon, August 21st. We’ve got glassy conditions with zero wind, a 5ft SW groundswell with a 15-second period, and moderate energy at 832. The waves will be clean and well-shaped, making it a great session for anyone.
After that, conditions get a bit mixed. We have some clean mornings early next week, but the winds tend to get messy in the afternoons. The second week brings a period of clean, glassy mornings around the 30th of August and 1st of September. The swell holds at 5ft to 6ft from the WSW, with very long period energy (18-19 seconds) and strong combined energy readings over 1300. These are prime conditions for the reef break, but the long period will make it break best at Dunes, and the size means it’s for experienced surfers only. The 30th of August morning, with a moderate offshore and 4ft WSW swell, and the 1st of September morning with a glassy 6ft WSW swell, are the real standouts in the extended period. Keep in mind that long-range forecasts are less certain.
There is a notable gap in quality surf around the 22nd and 25th of August, so plan around those.
This is Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 25°C on Fri afternoon, min 20°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 18°C on Sun night). Winds decreasing (strong winds from the S on Sun night, light winds from the W by Mon afternoon). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 14 | WSW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 15 | WSW 19 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 682 | 1144 | 1129 | 894 | 827 | 631 | 529 | 514 | 440 | 525 | 400 | 241 | 447 | 871 | 597 | 406 | 336 | 212 | 465 | 450 | 1984 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | on | off | off | glassy | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 3:26PM1.30m | 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 | 9:41AM0.53m | 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 | — | — | 6:43 | — | — | 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 | 22 | 23 | 24 | 22 | 25 | 25 | 22 | 23 | 22 | 21 | 24 | 22 | 20 | 23 | 22 | 23 | 23 | 23 | 21 | 23 | 21 |
Feels °C | 22 | 25 | 24 | 18 | 24 | 24 | 21 | 23 | 19 | 17 | 19 | 16 | 18 | 22 | 18 | 19 | 18 | 22 | 23 | 21 | 17 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 14 | WSW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 15 | SW 14 | SW 17 |
| kJ | 682 | 1144 | 1129 | 894 | 827 | 631 | 529 | 514 | 440 | 525 | 400 | 241 | 447 | 871 | 597 | 406 | 336 | 212 | 465 | 395 | 1984 |
Swell 2 Height (m) Direction Period (s) | SW 17 | N 6 | N 8 | NNE 8 | NE 8 | NNE 7 | SW 20 | SW 19 | SW 18 | SW 4 | WSW 20 | WSW 18 | SW 13 | SSE 3 | N 7 | SW 7 | — | NE 5 | ENE 5 | WSW 19 | W 18 |
| kJ | 338 | 1 | 1 | 6 | 9 | 5 | 65 | 127 | 154 | 3 | 37 | 123 | 286 | 1 | 1 | 16 | — | 8 | 2 | 450 | 6 |
Swell 3 Height (m) Direction Period (s) | N 7 | — | — | — | NW 11 | NW 11 | NNE 7 | NE 7 | NE 7 | NE 7 | NE 6 | N 11 | — | N 7 | — | W 13 | — | WSW 17 | WSW 22 | NE 4 | — |
| kJ | 1 | — | — | — | 5 | 5 | 5 | 8 | 2 | 2 | 2 | 2 | — | 1 | — | 4 | — | 29 | 48 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 3 | ESE 4 | — | — | SE 3 | — | SSW 3 | SSE 3 | SW 4 | S 4 | SE 4 | — | SSW 5 | ESE 3 | NE 4 | — | — | — | S 3 |
| kJ | — | — | 4 | 14 | — | — | 2 | — | 7 | 5 | 29 | 47 | 4 | — | 54 | 8 | 8 | — | — | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 15 | 227 | 493 | 0 | 227 | 15 | 1326 | 1288 | 1288 | 1447 | 772 | 0 | 1207 | 766 | 251 | 1397 | 0 | 0 | 1288 | 1444 |
Best forecast wave conditions in North West WA | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dunes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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