Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 7 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunes sea temperature is
23.8° 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 9 Aug 2026:

  • Best quality surf: Monday 10 Aug, 11AM (local time) - 4.5ft (1.3m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 2AM (local time) - 5ft (1.5m), 17s period, SW swell with 1,194 kJ wave energy.
  • Next surfable swell (1★+): Monday 10 Aug, 11AM (local time) - 4.5ft (1.3m), 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 Monday (Aug 10) at 11AM. The primary swell is predicted to be 1.3m 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 1.5m 17s and forecast to arrive on Monday (Aug 10) 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 1.4m 5s period and expected on Wednesday (Aug 12) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Mon 10th Aug)4.5ft (1.3m) 15s
Best Surf11AM (Mon 10th Aug)4.5ft (1.3m) 15s
Most Powerful 2AM (Mon 10th Aug)5ft (1.5m) 17s

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


The Lowdown

Alright, let’s get into this one. The only real game in town for the next two and a half weeks is Dunes, and it’s a reef setup that loves a solid SW swell. The first few days are a bit quiet, but there’s a proper pulse coming through later on that has me pretty amped.

Right now, Monday the 10th is a bit of a teaser. We’ve got a clean 4ft SW groundswell with a 15-second period, and the wind is a light cross-off from the SSE. The combined energy is sitting at a solid 842 (moderate energy). It’s not huge, but those long-period lines will be groomed nicely. The water temp is about average for this time of year, so no surprises there.

Tuesday the 11th though… the swell drops to 2ft, and while the wind is offshore, it’s blowing a strong 25 mph. That makes paddling out a real mission. You’d want to be a strong paddler to even bother. Wednesday the 12th sees a little bump back up to 4ft, and while the morning is clean with a cross-off, the real highlight is Wednesday afternoon. Glassy conditions, light air, a 3ft SW groundswell with a 16-second period – that’s the kind of session where you’ll be sliding into long, clean walls. The energy is moderate (484).

Thursday the 13th and Friday the 14th offer small, glassy windows with 3-3ft swell and long periods (14-17 seconds). Clean, but small. Saturday the 15th morning is clean with light winds, but the afternoon gets chopped out.

Now, the standout period. Sunday the 17th morning kicks off with glassy 3ft swell and a 13-second period, but the energy is already ramping up to 616 (moderate). Then Monday the 18th morning – this is the one. 6ft of SW groundswell rolling in with a 17-second period, glassy conditions, and the combined energy hits 1801 (strong to very strong). This is expert territory; the wave size and power will be too much for beginners. This is a true groundswell, and on a reef like Dunes, it should be offering up some serious, well-shaped lines. Expect longer lulls between sets, but the waves you do get will be worth the wait.

Tuesday the 19th morning stays solid with 7ft from the WSW, offshore wind from the SSE, and energy at 1880. Another excellent session for experienced surfers. Wednesday the 20th keeps the run going with 6ft and offshore winds in the morning. The energy stays strong at 1551.

The second week (from the 21st onward) shows the swell backing off a little, down to 5ft and then smaller, with stronger winds making it less appealing. There’s a chance of a clean glassy morning on the 25th with 4ft and a 14-second period (energy 543), but it’s a long way out and less certain.

Overall, the absolute best bet is Monday the 18th of August at Dunes. The combination of a solid 6ft SW groundswell, a very long 17-second period, and glassy conditions is about as good as it gets here. Just be aware, crowds are possible here sometimes. This is the one to circle on your calendar.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Sun night, min 15°C on Wed morning). Winds decreasing (strong winds from the SSE on Tue night, calm by Wed afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Fri afternoon, min 19°C on Wed night). Winds decreasing (fresh winds from the E on Thu morning, calm by Fri afternoon).

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
1
1
0
0
0
1
2
1
0
2
1
2
1
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
17
1.3
SW
15
1.2
SW
15
1
SW
14
0.7
SW
13
0.8
SW
16
0.8
SW
16
1.1
SW
16
1
SW
16
0.9
SW
15
0.8
SW
14
0.8
SW
14
0.7
SW
14
0.9
SW
17
0.9
SW
17
0.9
SW
16
0.9
SW
16
0.9
SW
15
0.9
SW
14
Wave Graph
Metric surfscale
Energy kJ
1194
842
631
393
176
306
299
643
480
385
297
293
192
493
470
421
406
360
346
Wind (km/h)
25
SSE
10
SSE
15
WSW
30
S
40
SE
35
SSE
45
SE
30
E
5
NNW
5
SW
25
E
5
E
20
S
15
ESE
10
WSW
25
SSW
10
SSW
25
WSW
20
SW
Wind State
cross-off
cross-off
cross
cross-off
off
off
off
cross-off
glassy
cross
cross-off
glassy
cross-off
off
cross
cross-off
cross-off
cross
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
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
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
22
18
20
20
18
21
20
16
19
20
19
20
22
20
23
23
22
23
22
Feels °C
16
14
16
14
10
13
10
8
17
16
12
18
18
16
19
18
19
19
18
  • Map Icons:
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  • 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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