Dunes Surf Break

Lat Long: 21.80° S 114.14° E

Dunes Surf Forecast and Surf Report

Issued: 7 pm 13 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 13 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 8PM (local time) - 7ft (2.1m), 17s period, WSW swell with cross-onshore winds.
  • Most powerful swell: Tuesday 18 Aug, 11PM (local time) - 7ft (2.2m), 17s period, WSW swell with 2,764 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 8AM (local time) - 3.5ft (1.0m), 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 Friday (Aug 14) at 8AM. The primary swell is predicted to be 1.0m and 17s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Dunes in the next 16 days are 2.2m 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 0.8m 4s period and expected on Thursday (Aug 20) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 14th Aug)3.5ft (1.0m) 17s
Best Surf 8PM (Tue 18th Aug)7ft (2.1m) 17s
Most Powerful11PM (Tue 18th Aug)7ft (2.2m) 17s

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


The Lowdown

G’day, I’m Rusty. Let’s talk about what’s cooking at Dunes for the next couple of weeks. The start is slow, but there’s a ripper window in the middle of next week if you’ve got the patience. Don’t bother padding up too early – it gets good, then it gets great.

Thursday 13th August kicks off small and weak: 3ft SW swell with a short 14-second period, combined energy at 266, and a light cross-on breeze. The water’s about 74°, dead average for the season. Leave it alone. Friday 14th August shows improvement: the morning gives you 3ft SW, 17-second period, clean with a cross-off wind, energy at 568. That’s a decent small window. The arvo goes messy with a moderate cross-shore. Saturday 15th has a glassy morning at 3ft SW (468 energy), but it’s gone by afternoon as the wind turns cross-on. Sunday is a write-off.

There’s a lull until Monday 17th, when the swell bumps to 4ft SW (861 energy), but it’s cloudy and cross-shore – marginal at best. The arvo is similar at 5ft (1036 energy), still not clean enough for a solid session.

Now, here’s the good stuff. Tuesday 18th August is the first real standout. The morning delivers 5ft SW at 17 seconds, energy roaring to 1421, with a light cross-off breeze – clean and excellent for experienced surfers. But the afternoon is the money: glassy conditions, 6ft WSW, still 17 seconds, and energy hitting 2065. That’s big, clean, and powerful. Wednesday 19th August keeps the fire going. The morning is 7ft WSW (2262 energy) but the guidance says it’s too big for this break – experts only. The afternoon is the prize: 7ft WSW, offshore wind from the ESE, and energy at 1904. Clean, strong, and well-shaped.

Thursday 20th drops a bit: 5ft SW in the morning with fresh offshore wind (857 energy), clean but a little blowy. The arvo gets raggedy. Friday 21st offers 6ft WSW in the morning (1809 energy), clean but marginal due to wind. Saturday 22nd and Sunday 23rd fade to 4ft and 4ft, with only the mornings looking clean. Monday 24th through Wednesday 26th stay small, around 2ft to 5ft, with clean mornings but weak energy in the 400-900 range.

Thursday 27th August shows a rebound: morning has 5ft SW at 15 seconds, clean with a light cross-off, energy at 966 – a very good session. Friday 28th finishes with a clean morning of 6ft SW at 17 seconds, energy 1778, but the wind is a fresh 18 mph cross-off – clean but breezy.

The absolute highlights are Tuesday 18th August (glassy afternoon) and Wednesday 19th August (offshore afternoon). That’s the window to circle on the calendar. Everything else is just filler or a morning session. Dunes is consistent, so it’ll keep offering, but those two windows are the real deal. Water temp is about average – no surprises there.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Mon morning. Warm (max 22°C on Sun night, min 19°C on Mon night). Wind will be generally light.

Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
1
2
1
0
2
0
0
2
3
4
4
3
!
!
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
14
0.9
SW
17
1
SW
17
0.9
SW
16
1
SW
16
1
SW
15
1
SW
14
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
1.9
WSW
17
2.2
WSW
17
2.2
WSW
16
2
WSW
16
1.8
SW
15
Wave Graph
Metric surfscale
Energy kJ
198
493
549
416
468
415
407
327
257
249
770
1031
1031
1417
2041
2636
2419
1880
1396
Wind (km/h)
20
S
15
S
20
WSW
15
SW
0
ESE
10
WNW
15
W
0
NW
15
WNW
15
W
15
SW
20
SSW
15
S
15
SSE
5
WNW
15
SW
5
S
5
WNW
20
SSE
Wind State
cross-off
cross-off
cross
cross
glassy
on
cross-on
glassy
cross-on
cross-on
cross
cross-off
cross-off
off
cross-on
cross-off
cross-off
cross-on
off
High Tide
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
3:01PM1.45m
3:09AM1.80m
Low Tide
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
9:08AM0.43m
8:40PM0.53m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
part cloud
part cloud
part cloud
part cloud
light rain
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
6:47
6:46
6:45
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:07
6:08
6:08
6:08
 mm
1
1
Temp °C
20
20
21
20
20
22
21
21
22
22
20
20
20
20
21
21
21
22
22
Feels °C
19
16
18
15
18
20
19
20
20
20
19
18
19
19
21
20
21
22
22
  • 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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