Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 7 am 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunes sea temperature is
23.1° C
0.2° 

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


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★+): Sunday 16 Aug, 2PM (local time) - 3ft (0.9m), 14s 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 Sunday (Aug 16) at 2PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.1m and 12s. 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-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Aug 23) at 5AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Sun 16th Aug)3ft (0.9m) 14s
Best Surf 5PM (Tue 18th Aug)7ft (2.1m) 17s
Most Powerful11PM (Tue 18th Aug)7.5ft (2.3m) 17s

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


The Lowdown

Alright, Rusty here, with a look at what’s coming down the line for the Dunes.

It’s a classic reef break setup that’s exposed to the SW, and we’ve got a run of surf that builds nicely through the first part of the week. The water temp’s sitting at 74°, which is pretty much bang on average for this time of year, so no need to worry about a wetsuit thickness call just yet.

The real standout of the whole 16-day window is Tuesday the 18th. We’ve got a clean morning with SE offshore wind at 9 mph and a solid SW groundswell pushing 5 ft with a long 17-second period. The combined energy is strong at 1451, and it’s set up for excellent, powerful waves. This is the morning to be in the water—just keep in mind that with such a long period groundswell, the sets will be a bit more spaced out, but the shape and drive will be well worth the wait. The afternoon actually jumps to 7 ft, but the guidance flags that as too big for this break, so stick with the morning session.

Monday the 17th is a solid runner-up. The morning has a 4 ft WSW groundswell with a 15-second period and clean conditions under a light southerly cross-off. It’s not the biggest, but the quality is there, and the combined energy of 811 is good moderate stuff. That afternoon the swell holds but the wind picks up, so the morning is your window.

After that peak, things settle back down through the rest of the week. Thursday the 20th and Friday the 21st both have clean mornings with around 5-5 ft SW swell, still good groundswell energy (over 1000), and light offshore winds. These are good, solid intermediate sessions, though nothing as punchy as Tuesday.

There’s a definite lull from Saturday the 22nd all the way through the following week. By the 26th of August we start to see some longer-period WSW pulses reappearing, but they’re small—3 ft—and the energy is moderate (699). The real interest comes back on Thursday the 27th of August, when we get a 4 ft SW swell with a 15-second period and light cross-off winds in the morning. The energy is moderate at 631, and the call is for very good conditions. It’s promising but it’s a week and a half out, so keep an eye on that one.

The very end of the outlook, August 31st, shows a 5 ft WSW swell, but with a strong onshore wind (19 mph) and poor conditions flagged. That’s one to skip.

So in short: Tuesday the 18th morning is your absolute best bet. Monday the 17th morning and Thursday the 27th morning are the next best calls. The crowds at Dunes are just "sometimes" an issue, but on such a good day, expect a few other salty locals to have the same idea.

Stay stoked.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun night, min 19°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Thu morning. Warm (max 26°C on Fri afternoon, min 18°C on Thu morning). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
3
3
4
4
!
!
!
2
3
4
4
2
4
1
1
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
14
0.9
SW
13
0.9
SW
13
1.3
WSW
15
1.4
SW
16
1.4
SW
16
1.6
SW
17
2.1
WSW
17
2.3
WSW
17
2.2
WSW
16
2
WSW
16
1.6
WSW
15
1.4
WSW
15
1.6
SW
17
1.6
SW
16
1.5
SW
16
1.4
SW
15
1.3
SW
15
1.1
SW
14
1.1
SW
14
1.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
327
257
249
770
1044
1031
1450
2581
2815
2419
1880
1132
840
1524
1302
1101
860
685
521
507
440
Wind (km/h)
10
E
10
NNE
10
WSW
10
S
20
S
15
S
15
SE
10
NNW
15
SSW
5
E
10
WSW
25
S
15
SE
10
SSW
25
S
15
SE
15
W
20
SW
15
E
15
NNW
25
S
Wind State
cross-off
cross-on
cross-on
cross-off
cross-off
cross-off
off
on
cross-off
cross-off
cross-on
cross-off
off
cross-off
cross-off
off
cross-on
cross
cross-off
cross-on
cross-off
High Tide
1:35PM1.89m
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
7:41PM0.23m
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
clear
clear
cloud
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
part cloud
light rain
rain showers
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:46
6:45
6:43
6:43
6:43
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:08
6:08
6:08
6:09
6:09
6:09
 mm
4
1
Temp °C
22
22
23
22
21
21
20
22
22
21
22
21
19
22
23
23
26
24
24
24
24
Feels °C
21
20
22
22
19
20
17
21
21
21
22
21
18
22
22
20
26
21
22
24
24
  • 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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