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) - 5.5ft (1.7m), 17s period, WSW swell with 1,644 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 5ft (1.5m), 15s period with WSW 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 5AM. The primary swell is predicted to be 1.5m 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 1.7m 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 1.3m 6s period and expected on Sunday (Aug 23) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 5ft (1.5m) 15s |
| Best Surf | 11AM (Thu 20th Aug) | 4.5ft (1.3m) 14s |
| Most Powerful | 2AM (Thu 27th Aug) | 5.5ft (1.7m) 17s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the next 16 days for Dunes. This is a reef break, exposed to the swell, but it’s not a spot that’s going to be consistently firing. The water is sitting at 75°, which is a touch warmer than normal for this time of year – nothing wild, but it’s a nice little bonus.
The immediate outlook is a bit mixed. It kicks off on Wednesday afternoon, the 19th, with a 7 ft WSW swell, but that’s a long-period 16 second groundswell and the conditions are only marginal. We’ve got a light breeze from the NW, but it’s onshore, so it’s a bit of a wait-and-see situation.
The real standouts come in the next couple of days. Thursday morning, the 20th, is looking crisp. The swell drops to 5 ft from the SW, still a solid 15 second period, but the wind is offshore from the SE at 9 mph. That’s clean, with a moderate offshore breeze. The wave energy is solid at 930. Then Thursday afternoon, it gets even better. The wind goes glassy from the W, the swell pushes up to 5 ft SW at 16 seconds, and the energy jumps to 1148. This is the best of the run – clean, glassy, great shape for the reef. This is the one for experienced surfers.
Friday morning, the 21st, keeps the offshore wind from the SE, but it’s a bit stronger at 12 mph. The swell is 5 ft SW, 15 seconds, and energy at 894. It’s still very good. Friday afternoon, the wind swings to a cross-shore from the WSW, and it gets a bit lumpy. That’s a drop-off.
The weekend is a write-off. Saturday morning, the 22nd, starts clean with a cross-offshore breeze, but the swell is already dropping to 4 ft, and by Saturday afternoon, a fresh 19 mph cross-shore from the WSW kills it. Sunday the 23rd is a total loss – strong winds, small swell, poor conditions. That’s a two-day gap of nothing.
Monday the 24th has a brief window in the morning. The wind is offshore from the SE at 16 mph, with a 3 ft SW swell, but the period is short at 13 seconds. The energy is 661, so it’s small but clean. The afternoons stay poor for the rest of that week.
We’ve got a long gap from Monday afternoon through to the next week. There’s a bit of a tease on Thursday the 27th morning – the swell jumps back to 6 ft WSW at 17 seconds, with a crazy energy of 1833, but the wind is a cross-offshore from the S at 16 mph, and it’s flagged as marginal. The following days are mostly windy or choppy.
Then, looking way out, we get a real promising one. Tuesday morning, the 1st of September. The swell is 5 ft from the WSW, with a 16 second period, and the energy is 1289. The wind is a light cross-offshore from the ESE at 6 mph. That’s flagged as excellent for experienced surfers. That’s the one to circle – it’s far out, but the setup looks solid. Wednesday the 2nd and Thursday the 3rd mornings also have some clean offshore windows, but the swell is smaller at 5 ft.
So, the pick of the bunch is Thursday afternoon, the 20th of August. That glassy, clean 5 ft SW swell on the reef is going to be the best of the month. The distant Tuesday 1st September morning is the long-range standout, but keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Fri afternoon, min 21°C on Thu night). Winds increasing (light winds from the SE on Thu afternoon, fresh winds from the SE by Thu night). | Days 5-7 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 | ||||||||||||||
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 15 | WSW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 14 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 |
Wave Graph | |||||||||||||||||||
1132 | 682 | 1144 | 1129 | 894 | 827 | 631 | 529 | 514 | 440 | 525 | 400 | 241 | 371 | 714 | 521 | 406 | 336 | 212 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | on | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 3:09AM1.80m | 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 | ||||||||
Low Tide | 8:40PM0.53m | 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 | |||||||
— | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | |
6:08 | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 24 | 24 | 23 | 25 | 24 | 22 | 23 | 22 | 21 | 24 | 22 | 20 | 24 | 22 | 22 | 23 | 23 |
Feels °C | 23 | 20 | 24 | 23 | 20 | 24 | 22 | 21 | 22 | 19 | 17 | 19 | 16 | 17 | 23 | 18 | 16 | 19 | 22 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 14 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 |
1132 | 682 | 1144 | 1129 | 894 | 827 | 631 | 529 | 514 | 440 | 525 | 400 | 241 | 371 | 714 | 521 | 406 | 336 | 212 | |
Swell 2 Height (m) Direction Period (s) | N 6 | SW 17 | NE 6 | N 8 | NNE 8 | E 4 | NE 7 | SW 20 | SW 19 | SW 18 | SW 4 | WSW 20 | WSW 18 | SW 13 | SSE 3 | N 6 | SW 7 | — | NE 5 |
1 | 338 | 1 | 1 | 6 | 2 | 12 | 65 | 127 | 154 | 5 | 37 | 123 | 138 | 1 | 1 | 30 | — | 11 | |
Swell 3 Height (m) Direction Period (s) | — | N 7 | W 13 | — | — | NNE 8 | NW 11 | NNE 7 | NE 7 | NNE 7 | NE 7 | NE 7 | NW 11 | SW 8 | N 7 | — | NE 6 | — | WSW 17 |
— | 1 | 4 | — | — | 6 | 5 | 5 | 8 | 5 | 2 | 2 | 5 | 39 | 1 | — | 1 | — | 28 | |
Wind waves Height (m) Direction Period (s) | — | SSE 3 | — | SE 3 | ESE 4 | — | SSE 3 | SE 3 | S 3 | SSW 4 | SSE 4 | SW 5 | SSW 5 | SE 4 | — | SSW 5 | SE 3 | NE 3 | — |
— | 1 | — | 11 | 13 | — | 1 | 2 | 1 | 12 | 5 | 37 | 77 | 9 | — | 44 | 4 | 5 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 227 | 227 | 0 | 227 | 15 | 0 | 1314 | 1288 | 1288 | 1288 | 777 | 0 | 1288 | 660 | 227 | 1446 | 659 |
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.











