Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
18.4°C
1.1° 

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


Cobblestones surf forecast from 3 Sep 2026:

  • Best quality surf: Monday 7 Sep, 2AM (local time) - 13ft (4.0m), 17s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 6 Sep, 8PM (local time) - 15ft (4.5m), 17s period, SW swell with 12,124 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 2AM (local time) - 13ft (4.0m), 17s 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 Monday (Sep 07) at 2AM. The primary swell is predicted to be 4.0m and 17s period with a secondary swell of 1.0m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 4.5m 17s and forecast to arrive on Sunday (Sep 06) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Tuesday (Sep 08) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 7th Sep)13ft (4.0m) 17s
Best Surf 2AM (Mon 7th Sep)13ft (4.0m) 17s
Most Powerful 8PM (Sun 6th Sep)15ft (4.5m) 17s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cooking for Cobblestones over the next couple of weeks. This is a solid, exposed reef setup that demands respect, and I’m telling you now, the first few days are a write-off. We don’t get anything worth paddling out for until Monday the 7th.

We kick off with a bit of a wait. Friday the 4th through Sunday the 6th is just messy – strong winds, lumpy cross-chop, and poor conditions. The swell is there, pushing 16ft on Friday with a serious 8981 combined energy, but it’s all junk. Not worth your time.

Monday the 7th morning is where the window starts to crack open. We’ve got a clean 13ft SW groundswell rolling in with a 16-second period. The wind is a light cross-shore, just a light breeze, leaving it with small ripples. The water temp is feeling about average for this time of year, so no surprises there. It’s a solid, consistent option for the advanced crew, with crowds only showing up *sometimes*. This is a good, honest session.

But the real standout—the one to circle on the calendar—is Tuesday the 8th. The morning is clean with a moderate cross-offshore breeze and a 13ft SW swell at 17 seconds. 9358 combined energy tells you there’s plenty of power. By the afternoon, it cleans right up with a gentle breeze, still holding that 13ft SW swell at 17 seconds, and the energy jumps to 9585. The report calls it exceptional for experts. This is the pick of the week, no question. If you’re an experienced surfer, that Tuesday afternoon is going to be magic.

We get another nice window on Wednesday the 9th. The morning has a moderate offshore breeze from the NE, keeping it clean, with an 12ft SW groundswell at 16 seconds. A little less energy at 5394, but still a very worthwhile paddle for the advanced surfers.

After that, things get smaller and trickier. We’ve got a few marginal days around the 10th and 11th, but the wind and swell don’t line up for anything special. Then the weekend of the 12th and 13th gets blown out again with strong onshores and rain—total mess, just forget about it.

Looking further out, there’s a promising blip on Monday the 14th morning. A clean 13ft SW swell at 16 seconds, light cross-onshore breeze, 7731 energy. It’s marginal, but there’s potential for a sneaky session. And then, another big standout appears on the horizon: Wednesday the 16th morning. A clean, gentle offshore breeze from the ENE, a solid 16ft SW groundswell with a 16-second period, and the combined energy is a massive 12452. That’s exceptional for experts, but remember, it’s a long-range call, so keep your fingers crossed.

Don’t expect much after that, the swell drops off into the 7ft range for the end of the week. The long-period groundswell on the 8th and 16th is best suited to a reef like this, so you’ll get proper, well-shaped waves, but be patient for the sets—they’ll have longer gaps between them.

Rusty out.

Short Range Forecast

Light rain (total 8mm), mostly falling on Sat afternoon. Very mild (max 16°C on Sat morning, min 11°C on Sun night). Winds increasing (light winds from the W on Fri night, strong winds from the SSE by Sat night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Tue afternoon, min 10°C on Tue night). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
6
7
3
2
0
4
5
9
7
4
6
8
9
7
5
4
5
2
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5
SW
13
5
SW
14
4.5
SW
14
3.5
SW
14
3
WSW
13
5.5
SSW
11
3.5
SW
13
2.5
SW
17
4
SW
17
4
SW
16
3.5
SW
16
4
SW
15
4
SW
16
4
SW
16
3.5
SW
16
3.5
SW
15
3
SW
15
2.5
SW
15
2.2
SW
14
2.1
WSW
14
2.2
WSW
14
Wave Graph
Metric surfscale
Energy kJ
8831
9925
8233
4581
2750
6880
4364
3863
9731
7263
6427
6589
8778
8568
6444
5256
4299
3004
2004
1748
1840
Wind (km/h)
30
SW
15
WSW
20
NW
30
NW
20
WNW
40
SSE
35
SSE
30
SSE
15
ESE
15
SSE
25
SSE
20
ESE
20
SE
10
SSE
20
E
25
NE
5
NW
20
ENE
25
NNE
10
N
15
NE
Wind State
cross-on
on
cross
cross
cross-on
cross
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
off
cross-off
cross
off
cross-off
cross-off
off
High Tide
2:47AM0.85m
5:24AM0.86m
6:53AM0.88m
7:55AM0.87m
00:50AM0.59m
8:46AM0.83m
11:34PM0.54m
9:30AM0.77m
10:58PM0.54m
Low Tide
1:59PM0.24m
2:41PM0.19m
3:20PM0.18m
3:55PM0.19m
4:26PM0.23m
1:13AM0.59m
4:50PM0.28m
2:42AM0.51m
5:02PM0.34m
3:34AM0.45m
part cloud
part cloud
part cloud
light rain
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:31
6:31
6:30
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:04
6:04
6:05
6:06
6:06
6:07
 mm
2
3
3
Temp °C
15
13
14
16
16
15
15
15
12
14
16
13
16
20
18
15
19
18
15
19
19
Feels °C
6
7
8
10
10
11
7
7
7
11
11
8
12
17
15
10
18
15
9
17
17
  • 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