Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
19.2° C
1.8° 

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


Cobblestones surf forecast from 16 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 8AM (local time) - 13ft (4.0m), 14s period, WSW swell with glassy winds.
  • Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 16ft (5.0m), 16s period, WSW swell with 11,654 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 8PM (local time) - 11ft (3.5m), 14s period with SW swell.

Best Forecast Surf Conditions for Cobblestones this week:

The surf forecast for Cobblestones over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 8PM. The primary swell is predicted to be 3.5m and 14s period with a secondary swell of 0.6m and 22s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 5.0m 16s and forecast to arrive on Wednesday (Aug 19) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Monday (Aug 17) at 8AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 21st Aug)11ft (3.5m) 14s
Best Surf 8AM (Sun 23rd Aug)13ft (4.0m) 14s
Most Powerful11PM (Wed 19th Aug)16ft (5.0m) 16s

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


The Lowdown

Alright folks, Rusty here. Let's break down what's coming our way for Cobblestones. We've got a solid run of swell on the cards, but the wind is going to be the main character in this story for a good stretch. The water is sitting at 67° which is a touch warmer than normal for this time of year, so that's a nice little bonus.

We kick things off on Sunday the 16th of August with a bit of a tease. The swell is a solid 10 feet from the WSW, carrying a massive 3946 units of energy, but it's a cross-off shore breeze and the call is marginal. It's not the cleanest start, but it's a sign of things to come. Then Monday and Tuesday get messy with strong onshore winds and heavy rain, pushing the swell up to 18 feet with over 10,000 units of energy but blowing it all out. That's a write-off for paddle surfing – that kind of power and wind is more suited to kites than a surfboard.

We start to see a glimmer of hope on Thursday the 20th. The swell drops to a still hefty 13 feet from the WSW with a long 16-second period and 7954 units of energy. The wind is onshore, but light, and the commentary says it's marginal. The real action starts to build for the weekend. Friday the 21st sees the swell drop to 12 feet from the SW (14s), and the wind is light, but the call is still marginal.

Now, here's the standout. Saturday morning, the 22nd of August. The conditions set up perfectly for Cobblestones. We've got a 12-foot swell from the SW with a very long 16-second period, packing 5334 units of energy. But the real magic is the wind – it's glassy, dead calm. For a reef break like this, that's a dream. The commentary calls it exceptional for expert surfers, and that's exactly what it is. An 12-foot groundswell with that period and no wind will be a sight to see. Expect some serious power and long, waiting sets. This is the one to circle.

After that, the wind starts to play up again on Sunday the 23rd with a cross-shore, but the swell holds in the 13 to 15-foot range. Things clean up again for the start of the following week. Monday the 24th of August offers up a solid 8 to 10-foot swell from the WSW with a 12-second period and a clean cross-off breeze. The commentary says excellent for experienced surfers, which is a solid call.

We then get a bit of a lull into the second week. Tuesday the 25th sees a 6 to 8-foot swell from the WSW with a long 17-second period, and the wind is a clean cross-off. It's marginal, but the conditions are clean. The energy drops a bit but is still there. The consistency gets a bit patchy from Wednesday the 26th to Saturday the 30th, with the wind picking up again and making things lumpy and choppy, despite the swell hanging around the 7 to 12-foot range.

The final note on the horizon is Monday the 31st of August. The models are showing a massive 18-foot groundswell from the WSW with a 17-second period, and a colossal 17,033 units of energy. The commentary says the wind is favorable, but the swell is predicted to be too big for this break. We're talking about a serious, serious amount of water moving. That's an experts-only, maybe even a "don't even think about it" day, unless you're towing in. Something to watch, but for now, it's a promise of power that's likely out of reach for a standard paddle session.

So, to sum it up: The first week is a story of waiting for the wind to play nice, with that Saturday morning the 22nd being the absolute gold. The second week is more inconsistent and wind-affected, but the energy is still there. Keep an eye on that final day of the month, but don't hold your breath.

Rusty, signing off.

Short Range Forecast

Heavy rain (total 22mm), heaviest during Mon morning. Very mild (max 19°C on Sun afternoon, min 13°C on Mon afternoon). Winds decreasing (strong winds from the W on Mon afternoon, light winds from the W by Tue morning).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Thu afternoon, min 12°C on Fri night). Wind will be generally light.

Sun
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
0
0
0
6
6
0
0
0
0
6
6
4
5
5
5
7
6
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
WSW
14
3
WSW
15
4.5
W
15
5.5
WSW
12
4.5
WSW
15
4.5
WSW
16
4
WSW
16
4
WSW
15
4.5
WSW
15
5
WSW
16
4.5
WSW
16
4
WSW
16
4
WSW
16
4
SW
15
3.5
SW
14
3.5
SW
14
3.5
SW
14
3.5
SW
16
3
SW
16
2.5
WSW
14
Wave Graph
Metric surfscale
Energy kJ
3388
3530
9045
8448
10193
9897
8680
6655
9114
10802
11513
7954
6991
6460
5050
5050
4605
5334
4070
2987
Wind (km/h)
30
N
35
NNW
40
WSW
45
WSW
20
SSW
15
WNW
25
WNW
35
WNW
20
SW
25
WSW
15
WSW
15
W
15
WSW
15
WSW
5
W
10
WSW
5
ESE
5
SW
15
SSW
10
S
Wind State
cross-off
cross
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
on
cross-off
glassy
cross-on
cross
High Tide
11:55PM0.64m
10:00AM0.54m
00:10AM0.70m
00:37AM0.74m
1:15AM0.78m
2:08AM0.81m
3:39AM0.84m
Low Tide
5:10PM0.47m
6:30AM0.52m
4:12PM0.44m
3:35PM0.38m
3:25PM0.34m
3:31PM0.30m
3:41PM0.29m
3:54PM0.28m
clear
rain showers
heavy rain
rain showers
cloud
cloud
cloud
rain showers
rain showers
cloud
cloud
cloud
part cloud
part cloud
cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:54
6:54
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:51
5:52
5:52
5:52
5:53
5:53
 mm
1
15
2
3
1
Temp °C
19
19
18
13
14
14
15
16
15
15
15
15
16
16
15
15
14
14
14
14
Feels °C
12
14
10
3
6
12
9
9
10
10
10
10
13
13
13
13
13
13
11
11
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Cobblestones:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cobblestones surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Cobblestones Surf forecast

The above surf forecast table for Cobblestones provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cobblestones can be found by selecting the local surf guide option on the grey menu. Our Cobblestones 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 (Cobblestones) 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 Cobblestones 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.

Cobblestones is 85 km (53 miles) from the city of Bunbury. If you plan a holiday in Margaret River, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest