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, 11AM (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 Monday (Aug 17) at 11AM. The primary swell is predicted to be 1.4m and 15s 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 0.9m 4s period and expected on Monday (Aug 24) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Mon 17th Aug) | 4.5ft (1.4m) 15s |
| 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
Alright folks, Rusty here. Let's have a look at what's cooking for Dunes over the next couple of weeks.
We’ve got a solid run of surf coming up, starting right away on Monday the 17th of August. The opening session is clean with a 4.6 ft SW swell and a 15-second period, combined energy of 879. It's a consistent reef break with a SE offshore wind, but it is exposed and can get busy, so expect some company in the water. That afternoon the swell keeps up at 4.6 ft with a longer 16-second period.
The real standout kicks off on Tuesday the 18th of August. We see the swell building to 5.2 ft from the SW with a juicy 17-second period, generating 1454 of energy. The wind is light ESE, keeping conditions clean. This is prime stuff. However, by Tuesday afternoon things get a bit spicy – the swell jumps to 6.9 ft but the wind turns onshore, and it's predicted to be too big for this spot. Save your energy for the morning.
Wednesday the 19th of August sees the swell peak a bit more at 7.2 ft from the WSW with a 16-second period. The morning has light offshore SE winds, and the break looks clean, but that wave height is pushing into expert territory for sure. It’s not a day for the faint-hearted. Thursday the 20th drops back to 4.3 ft but with a strong 30 km/h offshore wind, keeping the surface clean despite the fresh breeze.
Friday the 21st of August is another good call. Morning offshore winds from the SSE with a 4.9 ft SW swell and 16-second period, energy at 1087. Clean lines and moderate offshore winds. That’s a session I'd circle.
The weekend of the 23rd and 24th sees a drop in size with swell around 3.3 ft to 3.9 ft, but the wind shifts and makes things a bit choppy later in the day. Not as clean, but the mornings still offer some rideable waves for a relaxed paddle.
There’s a bit of a lull mid-week with smaller 2.3 ft to 3.0 ft swell and messy winds. Not much to write home about. But hang in there.
Come Wednesday the 26th of August, we get a solid pulse back. A 6.6 ft WSW swell with a 13-second period and light SSW winds in the morning. That’s a lot of juice (1503 energy), but again, that size is strictly for experienced surfers. The afternoon gets blown out, so hit it early.
Thursday the 27th still has good 5.2 ft SW swell in the morning with clean cross-off winds. Energy is still strong at 903. After that, it fades into smaller, wind-affected surf through the end of the month.
Towards the end of the window, on Saturday the 29th of August, we see a clean 2.3 ft swell with a long 16-second period and a moderate offshore wind. Low tide, low energy at 664, but the quality is there for a fun session on a longboard. And on Sunday the 30th of August, a glassy morning with a 3.0 ft WSW swell at 17-seconds – super long period – will break cleanly at this reef offering some really nice shape for the patient surfer.
So, the pick of the lot is Tuesday the 18th of August for raw power and quality, and Friday the 21st of August for a sweet, clean session in the chest-to-head-high range.
Short Range ForecastMostly dry. Warm (max 23°C on Sun night, min 20°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 19°C on Thu morning). Winds decreasing (fresh winds from the SSE on Thu morning, calm by Fri afternoon). | ||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 15 | SW 16 | SW 16 | SW 17 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||
249 | 838 | 1044 | 1031 | 1450 | 2581 | 2815 | 2419 | 1880 | 1206 | 682 | 1401 | 1271 | 1087 | 816 | 623 | 606 | 521 | 521 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | cross-off | on | cross-off | off | cross | off | off | cross-off | cross-off | off | cross-on | cross-off | cross-off | cross | 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 | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 21 | 21 | 22 | 22 | 21 | 22 | 22 | 20 | 21 | 22 | 21 | 23 | 23 | 22 | 23 | 22 |
Feels °C | 22 | 21 | 21 | 20 | 20 | 22 | 22 | 20 | 22 | 21 | 17 | 20 | 20 | 19 | 23 | 21 | 21 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 15 | SW 16 | SW 16 | SW 17 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
249 | 838 | 1044 | 1031 | 1450 | 2581 | 2815 | 2419 | 1880 | 1206 | 682 | 1401 | 1271 | 1087 | 816 | 623 | 606 | 521 | 521 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | WSW 20 | NW 12 | N 12 | N 6 | NE 6 | N 6 | N 6 | N 6 | N 6 | SW 17 | N 7 | N 6 | NNE 8 | NNE 8 | NNE 7 | NNE 8 | SW 19 | SW 18 |
211 | 41 | 6 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 338 | 1 | 1 | 6 | 6 | 5 | 6 | 58 | 49 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 14 | — | — | — | — | — | — | — | — | — | — | NW 11 | NW 11 | NNE 8 | NE 7 |
— | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 6 | 2 | |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | SSW 2 | — | SSE 2 | — | — | — | S 2 | SSE 3 | SE 3 | SSE 3 | S 2 | SSE 2 | — | SSW 3 | SSW 3 | SW 2 | SSW 4 |
— | 1 | 1 | — | 1 | — | — | — | 1 | 2 | 2 | 2 | 1 | 1 | — | 3 | 1 | 2 | 14 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 733 | 0 | 0 | 0 | 0 | 1446 | 15 | 15 | 660 | 15 | 227 | 1307 | 772 | 0 | 1288 | 753 | 0 | 1288 | 1020 |
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.











