Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 03 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: Sunday 6 Sep, 11PM (local time) - 15ft (4.5m), 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 12,820 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 11PM (local time) - 15ft (4.5m), 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 Sunday (Sep 06) at 11PM. The primary swell is predicted to be 4.5m and 17s period with a secondary swell of 0.4m and 11s. 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 Thursday (Sep 10) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 6th Sep)15ft (4.5m) 17s
Best Surf11PM (Sun 6th Sep)15ft (4.5m) 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

Righto, Rusty here. Let’s have a look at what’s coming down the line for Cobblestones.

This is a solid reef setup for advanced crew only, and it’s exposed to the swell with a sweet spot for SSW direction. The next couple of days are a write-off – Thursday and Friday are a messy, blown-out mess with strong onshore winds and poor conditions. Don’t even bother looking at it. The wait is worth it though, because from Monday morning (8th September) we get a window that cleans right up.

The real standout is Monday morning (8th September). The water is sitting at a touch warmer than normal for the time of year, about 65°F, with the anomaly just over a degree. The swell is a solid 13ft from the SW with a very long period of 17 seconds – proper groundswell energy. The combined swell energy is cranking at 10206 (strong). That’s an expert-only zone at that size, but the wind is a light, gentle offshore from the ESE. It’s going to be clean. If you’ve got the skills, that’s the session to target.

Another one to circle on the calendar is Wednesday morning (16th September). Another 13ft SW swell with a 17-second period and exceptional surf conditions. The combined energy is even bigger at 10692. Wind is a light cross-off from the NE, so the face should be lined up. Again, this is for the experienced chargers only – over 8ft is big territory.

Through the middle of the week there are some smaller but clean windows, like Tuesday morning (15th September) with 12ft from SW, period 15 seconds, and a light offshore from the ESE. That’s still a good wave, but the real power days are the standouts mentioned.

The second week drops off a bit in size and quality. Thursday and Friday (17th-18th September) see smaller 7ft to 8ft SW swells with clean offshore winds, but the energy is way down. Still rideable for the advanced crew, but nothing compared to the 8th and 16th.

Crowds at Cobblestones can be an issue sometimes, so get there early for the best of it.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Sat night. Very mild (max 16°C on Thu afternoon, min 12°C on Sat night). Winds increasing (light winds from the WSW on Fri night, strong winds from the S by Sat night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Tue afternoon, min 11°C on Sun night). Winds decreasing (fresh winds from the S on Sun afternoon, light winds from the SSW by Tue afternoon).

Thu
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
7
6
0
0
0
4
6
9
7
4
5
9
8
8
5
4
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
WSW
14
5
WSW
10
5
SW
13
4.5
SW
15
4.5
SW
14
3.5
WSW
14
4
WSW
13
5.5
SW
12
4
WSW
13
4.5
SW
17
4.5
SW
16
4
SW
16
3.5
SW
16
3.5
SW
15
4
SW
17
4
SW
16
4
SW
16
3.5
SW
16
3
SW
15
2.5
SW
15
Wave Graph
Metric surfscale
Energy kJ
5956
5416
8058
9795
7811
4390
5027
7454
4915
11826
10431
7173
6128
5351
10206
8886
7664
5464
4471
3004
Wind (km/h)
35
NW
45
WSW
30
SW
15
SW
20
NW
35
NW
30
WNW
45
S
30
SSE
25
SSE
15
E
15
S
25
SSE
15
ESE
15
ESE
10
SSE
25
ENE
25
NE
10
NNW
20
ENE
Wind State
cross-on
on
cross-on
on
cross
cross-on
cross-on
cross
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross
off
cross-off
cross
off
High Tide
1:15AM0.84m
2:47AM0.85m
5:24AM0.86m
6:53AM0.88m
7:55AM0.87m
00:50AM0.59m
8:46AM0.83m
11:34PM0.54m
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
part cloud
rain showers
part cloud
part cloud
part cloud
rain showers
rain showers
rain showers
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>
6:35
6:33
6:31
6:31
6:30
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:04
6:04
6:05
6:06
6:06
 mm
2
2
2
5
Temp °C
16
16
15
14
14
16
16
13
14
15
12
13
15
13
16
19
17
14
18
18
Feels °C
9
9
8
9
10
9
10
5
6
7
8
10
10
8
13
16
14
9
15
15
  • 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 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.

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