Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 7 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunes sea temperature is
23.6° C
0.5° 

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


Dunes surf forecast from 9 Aug 2026:

  • Best quality surf: Sunday 9 Aug, 5PM (local time) - 5ft (1.6m), 17s period, SW swell with offshore winds.
  • Most powerful swell: Sunday 9 Aug, 5PM (local time) - 5ft (1.6m), 17s period, SW swell with 1,383 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 5PM (local time) - 5ft (1.6m), 17s 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 09) at 5PM. The primary swell is predicted to be 1.6m and 17s period with a secondary swell of 0.2m and 11s. 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 17s and forecast to arrive on Sunday (Aug 09) at 5PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Wednesday (Aug 12) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sun 9th Aug)5ft (1.6m) 17s
Best Surf 5PM (Sun 9th Aug)5ft (1.6m) 17s
Most Powerful 5PM (Sun 9th Aug)5ft (1.6m) 17s

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


The Lowdown

Alright, let’s talk about the waves. The long-range outlook for Dunes is a bit of a mixed bag, but there are definitely a couple of windows where it’s going to fire. The water’s sitting about average for this time of year, so no need to dig out the extra rubber just yet.

We start this Sunday the 9th with a solid pulse of southwest groundswell. Morning sees 5ft of swell with a fresh offshore breeze, but it’s a bit average. The afternoon is where it’s at though – 5ft with the wind easing to a gentle offshore and the period stretching out to 17 seconds. That’s a proper long-period groundswell, bringing in some real energy. It’s going to be clean and lined up, a proper session for the experienced crew. This is one of the standouts.

Monday the 10th backs off a touch. Morning has 4ft with a clean cross-offshore wind, still decent. The afternoon gets a bit wonky with a cross-shore breeze and the swell dropping to 4ft, so it’s not worth rushing out for.

Tuesday the 11th is a write-off. The swell drops right out to under 3ft and that strong offshore wind will make it a battle just to get out back. Not worth the paddle.

We then hit a bit of a flat spell into the middle of the week. Wednesday the 12th has some knee-high dribble, and Thursday the 13th is pretty much the same story. There’s a brief moment on Thursday afternoon when the wind goes glassy, but the swell is only 3ft, so it’ll be small and clean, more of a longboard grovel.

Friday the 14th and Saturday the 15th see a slight bump in energy, but the winds are messy in the afternoons. The mornings are cleaner, but the swell is still only around 3ft. It’s rideable but nothing to get excited about.

Sunday the 16th is similar – a glassy morning with 3ft, but the afternoon gets chopped up by a cross-onshore breeze.

Now, here’s where it gets interesting. Monday the 17th kicks off with a new, longer-period swell. The morning is small at 3ft, but the period is a massive 20 seconds. That’s a very long-period groundswell. It’s clean with a light offshore wind, and while it’s small, it’s going to be super smooth. The afternoon sees the size jump to 5ft, but the wind swings onshore and it gets a bit messy.

The real standouts are Tuesday the 18th and Thursday the 20th. Tuesday morning has a solid 7ft of west-southwest swell with a 16-second period and the wind is dead calm – glassy. This is a big, powerful swell for Dunes. It’s going to be too big for beginners, and at that size, it’s really for the experts – over 8ft is expert territory, and this is right there. The break is a reef, so long-period swell like this will handle well. The afternoon is similar, with 7ft, but the wind comes onshore and adds some chop.

Thursday the 20th is the other big one. Fresh offshore winds in the morning with a 7ft west-southwest swell, 15-second period. Again, this is big and powerful, not for the faint-hearted. The afternoon backs off slightly but still has a cross-shore wind.

After that, it settles down a bit. Friday the 21st drops back to a cleaner 6ft, but the winds are stronger. The following weekend and into the next week, the size fades back to the 4ft to 5ft range with a lot of cross-offshore winds and some rain on Monday the 24th. It’s not looking great for the second week, to be honest.

So, if you’re an experienced surfer, lock in Tuesday the 18th or Thursday the 20th. Glassy, big, and powerful. Monday the 17th morning is also a sneaky one for the clean, long-period lines. Otherwise, it’s a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Sun night, min 13°C on Sun morning). Winds increasing (light winds from the SW on Mon afternoon, strong winds from the SE by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 23°C on Fri afternoon, min 15°C on Wed morning). Winds decreasing (strong winds from the ESE on Wed morning, calm by Thu afternoon).

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
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
4
2
3
1
1
0
0
0
1
2
1
0
2
2
2
0
1
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)
1.5
SW
14
1.6
SW
17
1.5
SW
17
1.3
SW
15
1.2
SW
15
1
SW
14
0.7
SW
13
0.6
SW
13
0.8
SW
16
1.1
SW
16
1.1
SW
16
1
SW
15
0.8
SW
14
0.8
SW
14
0.7
SW
14
0.9
SW
17
0.9
SW
16
0.9
SW
16
0.9
SW
16
0.9
SW
15
0.9
SW
14
Wave Graph
Metric surfscale
Energy kJ
911
1383
1194
842
631
393
176
144
299
643
553
444
297
293
192
493
454
416
406
355
341
Wind (km/h)
35
SE
15
SSE
30
SSE
15
S
15
WSW
35
S
40
SSE
35
SSE
45
SE
25
ESE
5
NNW
15
WSW
25
ENE
5
NE
25
SSE
20
SE
20
WSW
20
S
10
SSE
15
WSW
15
SW
Wind State
off
off
cross-off
cross-off
cross
cross-off
off
cross-off
off
cross-off
cross-on
cross
cross-off
glassy
off
off
cross-on
cross-off
cross-off
cross-on
cross
High Tide
9:36PM1.05m
7:59AM1.64m
10:47PM1.23m
9:40AM1.73m
11:24PM1.41m
10:47AM1.86m
11:57PM1.57m
11:38AM1.96m
00:28AM1.71m
12:21PM1.99m
00:58AM1.82m
1:00PM1.97m
1:27AM1.88m
Low Tide
2:24PM0.58m
00:45AM1.01m
3:54PM0.44m
3:15AM0.94m
4:51PM0.30m
4:32AM0.77m
5:34PM0.18m
5:26AM0.59m
6:11PM0.12m
6:11AM0.43m
6:45PM0.11m
6:51AM0.33m
7:14PM0.15m
clear
clear
clear
clear
clear
clear
clear
clear
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>
6:50
6:50
6:50
6:48
6:48
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:06
6:06
6:07
6:07
6:07
6:07
6:07
 mm
Temp °C
14
21
22
18
20
20
18
21
20
16
19
20
20
21
22
21
23
22
22
23
22
Feels °C
5
16
17
14
16
14
10
13
11
9
17
17
15
19
19
16
20
17
19
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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