Surf Forecasts:
Dunes surf forecast from 15 Sep 2026:
- Best quality surf: Saturday 19 Sep, 5PM (local time) - 7ft (2.1m), 16s period, WSW swell with cross-shore winds.
- Most powerful swell: Saturday 19 Sep, 5PM (local time) - 7ft (2.1m), 16s period, WSW swell with 2,200 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 11AM (local time) - 4ft (1.2m), 14s 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 Wednesday (Sep 16) at 11AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.2m and 18s. Another secondary swell of 0.7m and 7s is also forecast. 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 2.1m 16s and forecast to arrive on Saturday (Sep 19) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Saturday (Sep 19) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Wed 16th Sep) | 4ft (1.2m) 14s |
| Best Surf | 5PM (Sat 19th Sep) | 7ft (2.1m) 16s |
| Most Powerful | 5PM (Sat 19th Sep) | 7ft (2.1m) 16s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, let’s switch to feet and Fahrenheit. Dunes is the only game in town, and there’s no surf at the very start, so we kick off Wednesday, September 16th.
Wednesday morning, we have swell at 4ft from the SW with a 14-second period. That’s a nice groundswell. Combined energy is moderate at 656. Wind is light from the south at 9 mph, cross-off, so the faces are clean. Water temp is about normal for this time of year. Crowds are “sometimes,” so expect a few heads. This is a consistent reef break that’s good for intermediates.
By Wednesday afternoon, the wind swings to the WSW at 16 mph, going cross. Swell bumps to 5ft, but the wind chops it up. Pass.
Thursday the 17th of September morning is a standout. Glassy conditions with SE wind at just 3 mph. Swell is 3ft, 13-second groundswell. That’s clean, lined-up, and perfect for a log or a fun shape. Energy is 378. This is your best bet.
Thursday afternoon is onshore and poor.
Friday the 18th of September morning is glassy again – 2ft of 14-second swell, ESE wind at 3 mph. Small but clean. Energy is low at 270.
Saturday the 19th of September morning is a beast – 6ft from the WSW, 16 seconds, with combined energy at 1857 – that’s strong. Wind is S at 12 mph, cross-off, so it’s clean but solid. Afternoon looks even bigger: 7ft, energy at 2208, but the model says it’s too big for this break and the wind is 19 mph cross-shore. Experts only, and even then, it’s a mission.
Sunday the 20th of September morning is still big at 6ft, 14 seconds, with energy at 1272 and clean cross-off wind. Strong but surfable for capable surfers.
Monday the 21st of September morning is a nice reset: 4ft, 13 seconds, light SSW cross-off at 6 mph, energy 473. Clean and fun.
Tuesday the 22nd of September morning: 5ft, 16-second groundswell, S wind at 9 mph cross-off, energy 933. Another clean morning.
Wednesday the 23rd of September morning is a gem: 4ft SW groundswell, 14 seconds, light cross-off at 9 mph, energy 597. Really nice, clean wave.
The pattern holds – mornings are clean, afternoons are blown out, until Saturday the 26th of September morning. That morning, we get 6ft SW groundswell at 18 seconds (very long period), energy 1975. Wind is S at 12 mph, cross-off and clean. That’s a serious, heavy swell for experienced surfers only.
Sunday the 27th of September morning: 5ft, 16 seconds, and SSE offshore wind at 16 mph. Energy is strong at 1119. That offshore wind makes for perfect, clean peaks.
Monday the 28th of September morning: 4ft SW groundswell, 14 seconds, with SE offshore wind at just 6 mph. Energy 654. Clean and fun, last good window.
After that, it’s onshore winds and small, poor surf until the end.
If I had to pick the best? Thursday the 17th and Wednesday the 23rd of September mornings. Glassy or clean cross-off, perfect mellow groundswell. Saturday the 19th is a big-wave session for the brave.
This is Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 20°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Thu morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 20°C on Fri night). Winds decreasing (fresh winds from the S on Sat night, light winds from the SSW by Mon morning). | ||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 13 | WSW 17 | WSW 16 | WSW 16 | SW 15 | SW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 597 | 581 | 691 | 511 | 347 | 170 | 293 | 186 | 178 | 475 | 1857 | 2200 | 1835 | 1267 | 768 | 669 | 459 | 479 | 653 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | glassy | on | cross-off | glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off |
High Tide | 1:41AM1.99m | 2:09PM1.60m | 2:03AM1.94m | 2:33PM1.47m | 2:24AM1.86m | 2:56PM1.33m | 2:46AM1.76m | 3:22PM1.21m | 3:10AM1.64m | 3:59PM1.09m | 3:42AM1.51m | 6:09PM1.00m | 4:53AM1.36m | ||||||
Low Tide | 8:05AM0.24m | 7:45PM0.50m | 8:32AM0.34m | 8:00PM0.59m | 9:00AM0.46m | 8:13PM0.69m | 9:31AM0.59m | 8:22PM0.79m | 10:13AM0.72m | 8:25PM0.89m | 11:48AM0.82m | 7:14PM0.99m | |||||||
 |  |  |  | | | | | | | | | | | | | | | | |
 | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — |
 | 6:16 | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 24 | 24 | 26 | 27 | 25 | 25 | 24 | 23 | 22 | 25 | 23 | 25 | 27 | 24 | 25 | 24 | 22 |
Feels °C | 18 | 21 | 23 | 21 | 26 | 26 | 26 | 26 | 22 | 20 | 19 | 22 | 19 | 21 | 23 | 21 | 24 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 13 | WSW 17 | WSW 16 | WSW 16 | SW 15 | SW 14 | WSW 13 | SW 13 | SW 13 | SW 18 | SW 16 |
| kJ | 597 | 581 | 691 | 511 | 347 | 170 | 293 | 186 | 178 | 475 | 1857 | 2200 | 1835 | 1267 | 768 | 669 | 459 | 79 | 653 |
Swell 2 Height (m) Direction Period (s) | SW 19 | WSW 18 | W 18 | — | WSW 16 | SW 16 | SW 20 | SW 18 | WSW 18 | SW 13 | — | — | — | NW 11 | N 10 | N 10 | SW 19 | NNE 7 | NNE 7 |
| kJ | 15 | 31 | 6 | — | 26 | 119 | 15 | 84 | 128 | 164 | — | — | — | 5 | 2 | 2 | 14 | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | N 7 | W 18 | — | — | W 16 | SW 5 | W 20 | ENE 4 | NE 4 | WSW 5 | — | — | — | — | — | — | NE 7 | W 9 | — |
| kJ | 1 | 6 | — | — | 5 | 4 | 8 | 2 | 1 | 3 | — | — | — | — | — | — | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 7 | SW 3 | SSW 4 | — | — | — | — | SW 4 | SSW 6 | SSE 4 | SW 3 | S 4 | S 4 | SW 4 | S 4 | S 4 | SW 13 | SW 7 |
| kJ | 103 | 38 | 4 | 7 | — | — | — | — | 29 | 55 | 11 | 8 | 36 | 19 | 25 | 21 | 16 | 479 | 67 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 733 | 0 | 777 | 227 | 0 | 1447 | 15 | 0 | 1446 | 1444 | 15 | 1446 | 660 | 659 | 1207 | 660 | 0 | 1309 | 660 |
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.
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