Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 1 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunes sea temperature is
23.6°C
0.7° 

Dunes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Dunes surf forecast from 30 Aug 2026:

  • Best quality surf: Monday 31 Aug, 11AM (local time) - 3.5ft (1.1m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 11PM (local time) - 5ft (1.5m), 17s period, WSW swell with 1,279 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 11AM (local time) - 3.5ft (1.1m), 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 Monday (Aug 31) at 11AM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.9m and 19s. 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 1.5m 17s and forecast to arrive on Monday (Aug 31) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Sep 04) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Mon 31st Aug)3.5ft (1.1m) 16s
Best Surf11AM (Mon 31st Aug)3.5ft (1.1m) 16s
Most Powerful11PM (Mon 31st Aug)5ft (1.5m) 17s

Table - best surf conditions forecast for Dunes over the next 16 days.


The Lowdown

Alright, let’s get into it.

The next couple of weeks are a bit of a mixed bag, to be honest. We’ve got some clean windows, but also some proper wind that’s going to chop things up. The first few days are pretty average, so don’t get too excited about paddling out just yet. The real standouts, the mornings you want to circle on the calendar, are the 10th and 11th of September. Those look seriously good. Everything after that is a bit more of a lottery, but there are still some chances if you’re keen.

The only spot that's really showing any promise is Dunes. It’s a reef break, so it holds the swell way better than a beach break would. It’s a consistent spot, which is a plus, but it’s not super easy—you’ll want to be comfortable on a proper reef break. The crowds can be a factor here too, so you might want to get out early if you can.

Let's start with the opening. Sunday afternoon the 30th is a write-off. Cross-on breeze, 12 mph, it’s going to be choppy as anything with 4ft of lackluster swell. The energy is weak at 894, so don't bother. Monday the 31st has a much better morning. The wind swings to a light cross-off, and the clean-up is on. You’ve got 4ft of SW swell at 16 seconds, and that feels like a proper groundswell. The energy reading is up at 1216, which is moderate, but the quality is there for experienced surfers. Afternoon, though, the wind dies and goes cross-on again, killing the vibe.

Tuesday the 1st of September keeps the pattern. Morning is clean with a cross-off breeze, and the swell has bumped up a touch to 5ft, still from the WSW at 16 seconds. It’s good, but not epic. The afternoon those onshore winds pick up again and it’s over. The rest of the week rolls by with similar stories—mornings are your only real hope, but the swell is a bit inconsistent and the winds aren't all that reliable. It's all a bit average.

Now, let’s talk about the good stuff. The forecast for Sunday the 7th is interesting. Early, we have a strong offshore wind, a 22 mph ESE blow, with the swell at 4ft but the period has jumped to 19 seconds. That is a very long period groundswell and while it might be a bit straight for a beach break, here at a reef it could be something special. The energy is up at 1548, so there’s some serious power moving. But the afternoon that wind swings onshore at 9 mph from the NW, and the swell bumps to 6ft. That’s on the bigger side, definitely for experienced folks only.

But the real standout, the one to set your alarm for, is Thursday the 10th. The morning is glassy with a gentle offshore from the ESE. You’ve got 6ft of SW swell at a solid 16 seconds. This is clean, powerful, and has some serious push behind it with the energy at 1580. This is the best quality surf of the whole run. The next morning, Friday the 11th, is nearly as good. Another offshore, this time a moderate SSE at 12 mph. The swell is a touch smaller at 5ft, still from the WSW with a 16-second period. Energy is at 1294, but it’s still going to be an excellent, clean session.

After that, the run fades. The mornings are clean-ish, but the swell drops off. The 12th and 13th have some smaller waves in the 4ft to 4ft range, and it’s just not the same level. The water temp is 75°, which is pretty much average for this time of year, so a decent summer suit is all you need.

The week after that, starting from the 14th, the swell picks back up but the wind turns onshore and blows hard. It’s going to be lumpy, messy, and not a whole lot of fun for paddling. A 6ft swell with a fresh cross-off wind on the 14th might be more interesting for the kite crew than us on our surfboards.

So to sum it up: it’s a waiting game. If you can hold out for those two mornings on the 10th and 11th of September, you’ll be rewarded. The rest is mostly about grabbing a clean morning when you can. It's not a classic stretch, but when it’s on, it will be worth it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Tue afternoon, min 20°C on Mon morning). Winds increasing (light winds from the WSW on Mon afternoon, fresh winds from the SW by Tue night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Wed afternoon, min 17°C on Thu night). Winds increasing (light winds from the SW on Wed afternoon, strong winds from the SSW by Fri night).

Sun
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
4
1
3
3
0
1
2
0
1
1
0
0
0
1
0
2
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SW
17
1.1
SW
18
1.1
SW
16
1.2
WSW
16
1.5
WSW
17
1.5
WSW
16
1.4
WSW
16
1.3
WSW
16
1.2
WSW
15
1
WSW
14
1
WSW
14
1.3
SW
13
1
SW
13
1
SW
13
1.1
SW
13
1.3
SW
14
1.1
SW
14
0.9
SW
16
1.4
SW
16
1.3
SW
14
Wave Graph
Metric surfscale
Energy kJ
885
711
644
674
1279
1136
957
759
624
437
419
637
342
331
451
604
422
437
964
676
Wind (km/h)
20
WSW
15
SW
15
S
20
WSW
25
S
20
SSE
25
SW
25
SSW
20
S
25
WSW
30
SSW
25
S
35
SW
35
S
30
SSE
25
SW
35
S
20
SSW
35
WSW
40
SW
Wind State
cross-on
cross
cross-off
cross-on
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
00:51AM1.87m
1:05PM1.87m
1:16AM1.94m
1:36PM1.80m
1:42AM1.99m
2:09PM1.69m
2:10AM2.00m
2:42PM1.54m
2:43AM1.95m
3:20PM1.36m
3:20AM1.86m
4:09PM1.17m
4:10AM1.71m
Low Tide
6:40PM0.23m
6:55AM0.23m
7:05PM0.26m
7:27AM0.18m
7:29PM0.32m
8:01AM0.18m
7:52PM0.39m
8:39AM0.23m
8:16PM0.49m
9:22AM0.35m
8:41PM0.61m
10:17AM0.50m
9:07PM0.75m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:33
6:31
6:31
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:13
6:13
6:13
6:13
6:14
6:14
6:14
 mm
Temp °C
22
22
21
22
21
22
25
23
23
25
22
22
23
20
19
24
21
20
20
21
Feels °C
19
20
20
20
18
19
23
19
20
22
18
18
19
14
13
19
15
17
16
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Dunes:

join our community of surf reporters

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 locationNearest