Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 7 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunes sea temperature is
23.1° C
0.1° 

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


Dunes surf forecast from 12 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 8PM (local time) - 7ft (2.1m), 17s period, WSW swell with cross-shore winds.
  • Most powerful swell: Wednesday 19 Aug, 2AM (local time) - 7.5ft (2.3m), 17s period, WSW swell with 2,939 kJ wave energy.
  • Next surfable swell (1★+): Thursday 13 Aug, 2AM (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 Thursday (Aug 13) at 2AM. The primary swell is predicted to be 0.9m and 15s period. 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 Wednesday (Aug 19) 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 0.6m 6s period and expected on Thursday (Aug 13) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 13th Aug)3ft (0.9m) 15s
Best Surf 8PM (Tue 18th Aug)7ft (2.1m) 17s
Most Powerful 2AM (Wed 19th Aug)7.5ft (2.3m) 17s

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


The Lowdown

Alright, let’s get into it. This is Dunes, and it’s a reef setup that’s consistent and exposed to the southwest swell. The water temperature is about average for the time of year, nothing out of the ordinary.

We’ve got a bit of a slow start here. The first few days are looking pretty marginal. Thursday morning (13th August) you’ll find small 3 ft SW swell with a long 14-second period, but the wind is cross-off and it’s just not enough to get excited about. The combined energy is weak (315), so it’s more of a paddle-around session than anything. Later that afternoon, it goes glassy with the same small swell, but again, it’s small.

Friday morning (14th) sees a bump to 3 ft SW with a 17-second period, and the energy picks up to moderate (494). The wind is cross-off, keeping it clean. This is a decent option for a quiet session. But Friday afternoon, the wind swings cross-on and it gets messy. Saturday morning (15th) is your first real highlight: 3 ft SW, 16-second period, offshore SE wind at 9 mph, clean and glassy. The energy is moderate (468) and the break will be working. This is a good window for a few hours.

Then we hit a dead zone. From Saturday afternoon (15th) through to Monday morning (17th), the wind is onshore or cross-on, the swell is messy, and the conditions are poor. That’s a solid couple of days of nothing.

Tuesday morning (18th August) is where it starts to get interesting. The swell jumps to 5 ft from the WSW, with a 17-second period, and the energy is strong (1345). The wind is offshore SE at 12 mph, and the call is excellent for experienced surfers. This is a standout. The break will be clean, powerful, and the sets will be well-spaced. If you’re intermediate or above, this is your morning.

Tuesday afternoon the wind goes cross-on and the quality drops. Wednesday (19th) sees a big 7 ft WSW swell, but it’s too big for Dunes – the guidance says it’s too much for this break. The energy is very strong (2450), but the break is likely closing out or just too heavy. Thursday morning (20th) drops back to 5 ft SW, but the wind is offshore and it’s clean again. The energy is moderate (834). It’s a solid session for those who want a break from the bigger stuff.

Friday morning (21st) has a 6 ft SW swell with a 15-second period, a fresh offshore SSE wind at 22 mph, and strong energy (1306). The wind is a bit strong, but it’s offshore, so the waves will be clean and lined up. This is another good option for experienced surfers.

There’s a gap of a few days after that, with marginal conditions and cross-off winds, until we hit the next real standout: Tuesday morning (25th August). The swell is 4 ft from the WSW, a very long 19-second period, and the energy is strong (1431). The wind is cross-off from the east, and the conditions are clean. The long period means the waves will be well-shaped and powerful, best at this reef. This is a great session for those who can handle the longer gaps between sets.

Wednesday morning (26th) we see another 7 ft WSW swell, but again, it’s too big for Dunes. The energy is very strong (2736), but it’s a closed-out mess. Not for the faint-hearted.

Thursday morning (27th) brings a 6 ft WSW swell with a 15-second period, gentle cross-off wind, and clean conditions. The energy is strong (1368) and the call is excellent for experienced surfers. This is a strong finish to the window.

Friday morning (28th) drops to 3 ft WSW with a 13-second period, light cross-off wind, and clean conditions. It’s a smaller but fun way to end the run.

The real standouts are Tuesday morning (18th) and Tuesday morning (25th). Both have clean conditions, good swell size, and long-period energy. Tuesday the 18th is the pick of the first week, and Tuesday the 25th is the one to watch for the second week. Keep an eye on the big swells on the 19th and 26th – they’ll be too much for this spot.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Fri afternoon, min 18°C on Thu morning). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Sat night, min 19°C on Mon night). Wind will be generally light.

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
2
0
0
2
0
0
0
0
0
0
2
2
4
2
!
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
15
0.8
SW
14
0.8
SW
14
0.7
SW
14
0.9
SW
17
1
SW
17
1
SW
16
1
SW
16
0.9
SW
15
1
SW
14
1
SW
14
0.9
SW
13
0.7
SW
16
1.4
SW
16
1.4
SW
16
1.4
SW
16
1.5
WSW
17
1.9
WSW
17
2.3
WSW
17
Wave Graph
Metric surfscale
Energy kJ
385
297
248
198
493
549
480
468
360
407
384
295
261
883
1044
1031
1336
2065
2939
Wind (km/h)
5
SSW
20
E
5
NE
25
SSW
10
SSE
20
WSW
25
SW
15
SE
15
WNW
15
W
15
NW
15
WNW
20
WNW
20
W
25
WSW
25
S
20
SE
10
W
20
SSW
Wind State
cross-off
cross-off
glassy
cross-off
cross-off
cross-on
cross-off
off
on
cross-on
on
on
on
cross-on
cross
cross-off
off
cross-on
cross-off
High Tide
11:57PM1.57m
11:38AM1.96m
00:28AM1.71m
12:21PM1.99m
00:58AM1.82m
1:00PM1.97m
1:27AM1.88m
1:35PM1.89m
1:55AM1.91m
2:06PM1.76m
2:20AM1.90m
2:35PM1.61m
2:45AM1.86m
Low Tide
5:26AM0.59m
6:11PM0.12m
6:11AM0.43m
6:45PM0.11m
6:51AM0.33m
7:14PM0.15m
7:28AM0.28m
7:41PM0.23m
8:03AM0.29m
8:05PM0.32m
8:35AM0.34m
8:24PM0.43m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:47
6:47
6:46
6:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:07
6:07
6:08
6:08
 mm
Temp °C
20
19
20
21
20
22
21
20
22
22
22
22
22
22
22
21
20
22
21
Feels °C
18
13
18
18
17
17
16
16
19
19
21
19
19
20
20
17
18
20
18
  • 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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