
Surf Forecasts:
Dunes surf forecast from 10 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 5PM (local time) - 3.5ft (1.0m), 16s period, SW swell with glassy winds.
- Most powerful swell: Monday 17 Aug, 2PM (local time) - 4.5ft (1.4m), 16s period, SW swell with 1,031 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 5PM (local time) - 3.5ft (1.0m), 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 Wednesday (Aug 12) at 5PM. The primary swell is predicted to be 1.0m and 16s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Dunes in the next 16 days are 1.4m 16s and forecast to arrive on Monday (Aug 17) 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 1.5m 5s period and expected on Wednesday (Aug 12) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 12th Aug) | 3.5ft (1.0m) 16s |
| Best Surf | 5PM (Wed 12th Aug) | 3.5ft (1.0m) 16s |
| Most Powerful | 2PM (Mon 17th Aug) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve been studying the charts for the Dunes in our area. Let’s get into it.
The forecast kicks off Monday, August 10th, and it’s a slow start. The first few days are a bust—Monday afternoon is marginal with a cross-breeze messing up the 4ft SW swell, and Tuesday morning is a no-go despite 25 mph offshore winds because the waves are tiny and the wind is too strong to paddle into. Tuesday afternoon and Wednesday morning are also nothing to get excited about.
The first real chance comes Wednesday afternoon, August 12th. That’s when the wind goes glassy, with a light NW breeze of 3 mph. The waves are 3ft from the SW, with a long 16-second period, and the combined swell energy is moderate at 484. It’s going to be clean and glassy, but it’s a small day.
The standout window, and I mean the one you want to mark on your calendar, is the morning of Tuesday, August 18th. The wind is glassy again, 3 mph from the W, and the swell is a solid 5ft from the SW with a 15-second period. The combined energy is strong at 963, and the conditions are listed as “very good.” This is a beautiful, clean morning for a reef break like Dunes. The water temp is 75°F with a nearly normal anomaly of 0.9°F, so it’s just about average for this time of year. No crowds mentioned, but Dunes is “sometimes” busy, so you might have a few friends out.
If you’ve got the skills, the morning of Wednesday, August 19th, is a big-wave day for experts only. The swell jumps to 7ft from the WSW, with a 16-second period, and the combined energy hits 2285—that’s very strong. The wind is glassy, 3 mph from the WSW, so it’ll be clean, but this is too big for most. Only the experienced crew should be out there.
After that, the swell backs off a bit, but we get another solid morning on Friday, August 21st, with a 5ft SW groundswell, 13-second period, and light offshore winds from the SE at 6 mph. Combined energy is 1305, which is strong, and it’s clean. This is another excellent option for experienced surfers.
The final mention is Sunday, August 23rd, morning. Another 5ft SW swell, 16-second period, with a light cross-offshore breeze from the SSE at 9 mph. The energy is 1401, making it strong, and the conditions are clean. Another good one for the crew who can handle the long-period swell.
The rest of the days are marginal or poor, with onshore winds and chop. The 16-day window has a few decent gaps, but the two true standouts are the Tuesday morning (August 18th) for the glassy, clean conditions, and the Wednesday morning (August 19th) for the big-wave hunters. The long-period swells are best for this reef break, as the waves will shape up nicely.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon afternoon, min 15°C on Wed morning). Winds decreasing (strong winds from the SE on Tue night, calm by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Fri afternoon, min 19°C on Thu afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 15 | SW 14 | SW 13 | SW 10 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 |
Wave Graph | ||||||||||||||||||||
631 | 393 | 176 | 111 | 635 | 567 | 480 | 380 | 297 | 293 | 198 | 493 | 549 | 480 | 539 | 355 | 346 | 390 | 347 | 336 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | cross-off | off | cross-off | glassy | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-on | on | on | on |
High Tide | 10:47PM1.23m | 9:40AM1.73m | 11:24PM1.41m | 10:47AM1.86m | 11:57PM1.57m | 11:38AM1.96m | 00:28AM1.71m | 12:21PM1.99m | 00:58AM1.82m | 1:00PM1.97m | 1:27AM1.88m | 1:35PM1.89m | 1:55AM1.91m | |||||||
Low Tide | 3:54PM0.44m | 3:15AM0.94m | 4:51PM0.30m | 4:32AM0.77m | 5:34PM0.18m | 5:26AM0.59m | 6:11PM0.12m | 6:11AM0.43m | 6:45PM0.11m | 6:51AM0.33m | 7:14PM0.15m | 7:28AM0.28m | 7:41PM0.23m | |||||||
— | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:47 | — | — | |
6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 17 | 20 | 20 | 16 | 19 | 20 | 19 | 20 | 21 | 20 | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 22 |
Feels °C | 16 | 14 | 9 | 12 | 11 | 9 | 17 | 17 | 13 | 17 | 18 | 16 | 17 | 15 | 19 | 19 | 19 | 21 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 13 | SW 10 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 |
631 | 393 | 176 | 108 | 635 | 567 | 480 | 380 | 297 | 293 | 198 | 493 | 549 | 480 | 539 | 355 | 346 | 390 | 347 | 336 | |
Swell 2 Height (m) Direction Period (s) | WSW 19 | SW 18 | SW 7 | SW 13 | NW 11 | NW 11 | NE 6 | NE 6 | NE 8 | NE 5 | SW 19 | NE 6 | NE 6 | NE 6 | N 5 | — | — | NW 12 | SW 22 | SW 16 |
251 | 113 | 39 | 111 | 5 | 5 | 47 | 21 | 3 | 17 | 171 | 6 | 1 | 1 | 1 | — | — | 6 | 19 | 219 | |
Swell 3 Height (m) Direction Period (s) | NNW 10 | NW 11 | SW 17 | SW 16 | NW 11 | — | NW 11 | NE 8 | SW 22 | SW 21 | NE 6 | — | — | — | — | — | — | — | W 13 | — |
10 | 5 | 147 | 95 | 5 | — | 4 | 10 | 18 | 18 | 11 | — | — | — | — | — | — | — | 3 | — | |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | SE 5 | SSE 4 | SE 5 | E 5 | — | — | ENE 4 | — | — | S 3 | — | SW 3 | WSW 3 | W 3 | W 4 | WNW 3 | NW 2 | WNW 3 |
— | 20 | 47 | 21 | 115 | 52 | — | — | 14 | — | — | 1 | — | 2 | 1 | 3 | 4 | 1 | 1 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1447 | 1288 | 1020 | 1020 | 660 | 753 | 0 | 660 | 753 | 15 | 660 | 0 | 660 | 227 | 251 | 1020 | 660 | 227 | 660 | 1444 |
Best forecast wave conditions in North West WA | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











