Surf Forecasts:
Dunes surf forecast from 4 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 5AM (local time) - 4.5ft (1.3m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 5PM (local time) - 5ft (1.6m), 16s period, SW swell with 1,367 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 5PM (local time) - 3ft (0.9m), 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 Tuesday (Aug 04) at 5PM. The primary swell is predicted to be 0.9m 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 1.6m 16s and forecast to arrive on Thursday (Aug 06) 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 1.5m 5s period and expected on Tuesday (Aug 11) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Tue 4th Aug) | 3ft (0.9m) 15s |
| Best Surf | 5AM (Wed 5th Aug) | 4.5ft (1.3m) 18s |
| Most Powerful | 5PM (Thu 6th Aug) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Dunes over the next 16 days.
The Lowdown
Alright, let’s get into it. Dunes is the spot, a reef break that’s consistent and open to the southwest swell. Water temp is 24°, dead average for the season.
We kick off on Tuesday, 4th August. It’s a slow start with 0.9m of southwest groundswell, 15-second period. The wind is offshore from the southeast at 20 km/h, keeping it clean. The combined energy is moderate (374). It’s small, but you can get wet. The afternoon has a bit more juice (522) with the wind from the east-southeast, still offshore.
Wednesday, 5th August is the real deal. Morning brings 1.4m of southwest swell, 17-second period, with a gentle offshore from the southeast at 15 km/h. The combined energy is 1041 – that’s proper power. The afternoon is glassy: wind drops to 5 km/h from the north-northwest, and the swell holds at 1.4m. This is a standout day.
Thursday, 6th August keeps it going. Morning has 1.5m, 16-second swell from the southwest, with a gentle offshore from the south-southeast at 15 km/h. Energy is strong (1158). The afternoon gets a cross-shore wind, but it’s still a solid 1.6m of swell.
Friday, 7th August morning is another winner. 1.5m of southwest swell, 16-second period, with a moderate offshore from the southeast at 20 km/h. Energy is strong (1125). The afternoon is clean with a cross-off breeze.
The weekend gets windier. Saturday, 8th August has a fresh breeze of 35 km/h, making it choppy. The swell is 1.3m, but the wind is too strong. Sunday, 9th August morning has a fresh offshore, but the swell is 1.4m. The afternoon brings a bigger 1.5m, 17-second swell, but it’s cross-off.
Monday, 10th August is similar – fresh offshore winds, dropping swell. The little gem is the afternoon of Wednesday, 12th August, when it goes glassy with a 0.7m, 16-second swell. Small, but clean.
The big show is the end of the forecast. Tuesday, 18th August morning has a massive 1.9m of southwest swell, 16-second period, with a moderate offshore from the south-southeast. The energy is 1785. The afternoon hits 2.1m, 17-second period, but it’s cross-off and flagged as too big for the break. Wednesday, 19th August is also huge, with 2.1m from the west-southwest. That’s experts-only territory.
The best windows are Wednesday, 5th August through Friday, 7th August, and then the big stuff on 18th and 19th August. The gaps are small and windy, but that’s how it goes.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue morning. Warm (max 24°C on Thu afternoon, min 20°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 15°C on Sun morning). Winds increasing (light winds from the SSE on Fri afternoon, strong winds from the SSE by Sat night). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | SW 15 | SW 15 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 355 | 314 | 863 | 1036 | 929 | 917 | 1158 | 1367 | 1255 | 1101 | 883 | 773 | 733 | 695 | 536 | 821 | 1267 | 1238 | 886 | 657 | 387 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | glassy | cross-off | off | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | off |
High Tide | 2:25PM1.72m | 2:44AM1.87m | 3:01PM1.57m | 3:16AM1.87m | 3:41PM1.40m | 3:55AM1.83m | 4:33PM1.21m | 4:46AM1.76m | 6:02PM1.04m | 6:02AM1.67m | 9:36PM1.05m | 7:59AM1.64m | 10:47PM1.23m | ||||||||
Low Tide | 8:21AM0.39m | 8:24PM0.38m | 9:00AM0.41m | 8:49PM0.47m | 9:47AM0.46m | 9:16PM0.59m | 10:47AM0.54m | 9:46PM0.72m | 12:19PM0.62m | 10:26PM0.87m | 2:24PM0.58m | 00:45AM1.01m | 3:54PM0.44m | 3:15AM0.94m | |||||||
 |  |  |  | |  | | |  | | | | |  | | | | | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 22 | 22 | 23 | 23 | 22 | 24 | 23 | 22 | 23 | 23 | 19 | 23 | 21 | 16 | 22 | 22 | 18 | 23 | 22 |
Feels °C | 19 | 17 | 21 | 21 | 23 | 23 | 22 | 24 | 22 | 20 | 20 | 21 | 13 | 17 | 13 | 8 | 16 | 14 | 10 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | SW 15 | SW 14 |
| kJ | 355 | 314 | 863 | 1036 | 929 | 917 | 1158 | 1367 | 1255 | 1101 | 883 | 773 | 733 | 695 | 536 | 821 | 1267 | 1238 | 886 | 657 | 387 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | NNE 7 | NE 7 | NNE 7 | NNE 7 | NNE 7 | NE 7 | NE 7 | NNE 7 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | SW 7 | WNW 10 | WNW 11 | SW 22 | NW 10 | SW 19 | SW 18 |
| kJ | 44 | 43 | 44 | 31 | 21 | 19 | 12 | 8 | 4 | 24 | 36 | 45 | 42 | 29 | 77 | 11 | 11 | 118 | 4 | 184 | 152 |
Swell 3 Height (m) Direction Period (s) | SW 22 | SW 21 | NW 11 | NW 11 | NW 11 | W 10 | — | — | NW 14 | NE 6 | ENE 6 | NE 7 | NE 7 | SE 4 | NW 10 | — | SW 24 | NW 11 | NE 6 | NNE 10 | NE 6 |
| kJ | 19 | 208 | 5 | 5 | 5 | 2 | — | — | 7 | 1 | 4 | 2 | 2 | 1 | 28 | — | 22 | 4 | 2 | 10 | 1 |
Wind waves Height (m) Direction Period (s) | SE 3 | SE 4 | SSE 3 | — | — | — | — | — | SW 5 | ESE 6 | S 3 | SSW 4 | S 4 | SSW 5 | SSE 5 | SE 5 | SE 4 | SSE 5 | SE 5 | SSE 4 | SE 5 |
| kJ | 4 | 10 | 1 | — | — | — | — | — | 14 | 8 | 1 | 11 | 12 | 47 | 63 | 73 | 14 | 52 | 49 | 3 | 91 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 227 | 0 | 0 | 0 | 0 | 251 | 258 | 0 | 227 | 1444 | 1446 | 1446 | 660 | 660 | 1446 | 660 | 659 | 1447 | 772 |
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
FREE! Surf-Forecast.com widget for your website
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.
Nearest