Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 7 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunes sea temperature is
23.7° C
0.8° 

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


Dunes surf forecast from 19 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 2PM (local time) - 7ft (2.1m), 16s period, WSW swell with glassy winds.
  • Most powerful swell: Wednesday 19 Aug, 2PM (local time) - 7ft (2.1m), 16s period, WSW swell with 2,075 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 2PM (local time) - 7ft (2.1m), 16s 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 Wednesday (Aug 19) at 2PM. The primary swell is predicted to be 2.1m 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 2.1m 16s and forecast to arrive on Wednesday (Aug 19) at 2PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Aug 25) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Wed 19th Aug)7ft (2.1m) 16s
Best Surf 2PM (Wed 19th Aug)7ft (2.1m) 16s
Most Powerful 2PM (Wed 19th Aug)7ft (2.1m) 16s

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 on the cards for the coming weeks. We’re focusing on one spot, and it’s a reef setup that’s going to give us a fair bit to work with, but we gotta be patient.

The opening offer is a big one, but it comes with a serious caveat. On Wednesday morning, August 19th, we’ve got a solid pulse of swell hitting the coast. The waves are going to be a hefty 6.9 ft, pushed in from the WSW with a very long period of 16 seconds. That’s a lot of water moving, and the combined energy is absolutely pumping (2234). The wind is offshore from the SE at 9 mph, so the surface will be clean. But look, this is a reef break and at that size, it’s going to be a handful. The water’s sitting at 74.7°, which is pretty much bang on average for this time of year so no surprises there. This is expert territory only; if you’re not on your game, it’s going to be a long swim.

The standout session, and the one I’d be circling on the calendar, is Thursday morning, August 20th. The swell drops back to a much more manageable 4.3 ft from the WSW, still with a solid 14-second period. The combined energy is still strong (1020), but the wind is a dream – light offshore from the SE at 9 mph. This is going to be clean, glassy, and the reef will be working beautifully. The quality is excellent for experienced surfers, and with the swell direction matching the break’s sweet spot, you’re looking at the best wave of the whole forecast.

Friday morning the 21st keeps the good form going. The swell is 4.6 ft from the SW, period at 16 seconds, and the offshore wind is a bit stronger at 12 mph. It’ll be a bit more powerful but still clean. The swell energy drops a touch (894), but it’s still a very good morning. The afternoons, though, are a write-off for the rest of this week, turning choppy and messy.

We have a bit of a lull through the weekend. Saturday morning the 22nd has some 3.9 ft swell, but it’s a smaller window. Sunday is flat and windy. The break picks up again on Monday morning the 24th with 4.3 ft from the SW and offshore winds, offering another clean session. This pattern of clean mornings and blown-out afternoons holds true through the middle of the week.

Now, looking further out, things get interesting again. On Thursday morning, August 27th, we see a new pulse of longer-period WSW swell, hitting 5.6 ft with a 16-second period. The combined energy jumps right back up (1576). The wind is cross-offshore, so it’s clean, but at that size and with the long period, it’s a proper reef wave. It’s a good option for the experienced crew, but it’s not the top pick of the entire forecast.

The big standout for the second week is actually Sunday morning, August 30th. That’s seven days away, so keep an eye on the forecast, but it looks promising. The swell is only 2.6 ft from the WSW, but the period is a staggering 22 seconds. That is a very long period groundswell. The combined energy is moderate (1061), but that long period will wrap beautifully into the reef. The wind is light and cross-off from the ENE at 9 mph. If this holds, it’ll be a glassy, rippable day with long, clean lines. It’s a sleeper pick.

Then on Monday, August 31st, we get a bigger push of 5.9 ft from the WSW with a 17-18 second period. The energy is massive (1989-2022). The mornings here are clean with cross-offshore winds, but this is back to that big-wave territory. For the experts, it’s a goer, but it’s a step up from the previous week.

The last real highlight is Wednesday morning, September 2nd. The swell is 3.9 ft from the WSW, 14-second period, with a light offshore wind from the SE. It’s another clean, friendly-sized day at the reef, and the combined energy (834) is solid. This is a great mellow option to close out the run.

The gaps between the really good sessions are short, mostly just a day of poor afternoon winds. The consistent nature of the reef means we’ll get waves most days, you just have to pick the morning window. The water remains at a comfortable average temp for the season.

That’s the long picture from here. Get on it when the wind is right, and don’t be a hero on the biggest days unless you’ve got the skills.

Short Range Forecast

Mostly dry. Warm (max 25°C on Fri afternoon, min 20°C on Wed morning). Winds increasing (calm on Wed afternoon, fresh winds from the SSE by Thu night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sun afternoon, min 19°C on Sat night). Winds decreasing (strong winds from the S on Sun night, light winds from the SSW by Mon afternoon).

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
3
3
4
3
2
3
1
2
3
0
1
0
0
0
3
0
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)
2.1
WSW
16
1.8
WSW
16
1.6
WSW
15
1.3
WSW
14
1.5
SW
16
1.5
SW
16
1.4
SW
16
1.4
SW
15
1.2
SW
15
1.2
SW
14
1.1
SW
14
1.1
SW
14
1
SW
15
0.9
SW
16
0.8
SW
14
1.3
SW
16
1.2
SW
15
1.1
SW
14
1.1
SW
13
1
SW
13
0.9
SW
12
Wave Graph
Metric surfscale
Energy kJ
2234
1629
1132
682
1144
1129
894
827
631
606
514
434
465
400
241
813
631
463
444
336
212
Wind (km/h)
15
SE
10
NW
20
SSE
15
SE
10
W
30
SSE
20
SE
20
SW
20
S
15
SSE
30
SW
35
S
30
S
25
SSW
35
S
20
SE
30
WSW
35
S
25
SSE
15
WNW
25
S
Wind State
off
on
cross-off
off
cross-on
cross-off
off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
off
cross
cross-off
off
on
cross-off
High Tide
3:01PM1.45m
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
9:08AM0.43m
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
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
6:43
6:41
6:41
6:39
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:08
6:09
6:09
6:09
6:10
6:10
6:10
 mm
Temp °C
21
22
22
22
24
23
22
25
25
22
24
22
20
25
24
21
24
22
22
26
23
Feels °C
20
23
23
21
24
21
20
24
23
22
21
19
15
20
19
17
22
17
17
23
21
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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