Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 7 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
18.2°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 8 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 8AM (local time) - 11ft (3.5m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Monday 14 Sep, 11PM (local time) - 13ft (4.0m), 15s period, SW swell with 6,290 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 8AM (local time) - 11ft (3.5m), 15s 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 Wednesday (Sep 09) at 8AM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 1.2m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 4.0m 15s and forecast to arrive on Monday (Sep 14) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Thursday (Sep 10) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 9th Sep)11ft (3.5m) 15s
Best Surf 8AM (Wed 9th Sep)11ft (3.5m) 15s
Most Powerful11PM (Mon 14th Sep)13ft (4.0m) 15s

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


The Lowdown

Right, let’s have a look at the 16-day picture for Cobblestones. This is a solid, exposed reef break that demands respect. The first few days are on, but only for the crew who know what they’re doing.

We kick off with a beauty. Wednesday the 9th is looking clean and powerful. A solid 10ft south-west swell with a beefy 15 second period is pumping through, and that easterly offshore wind is grooming it to perfection. The energy readings are massive, and it's gonna be a serious session for advanced surfers only. With crowds *sometimes* around, you might get a few out, but the power will keep it thinned out. The water temp is about average for this time of year.

Thursday the 10th drops off a bit. The swell drops to 7ft and the wind swings, making the surf a bit messier. It's not the same quality. Friday morning the 10ft swell is back but with tricky wind, while Friday afternoon brings a bigger 10ft south-west swell, but the wind stays tricky.

Saturday and Sunday are a write-off. Strong cross-onshore wind and lumpy conditions make a mess of the 10ft+ swell. Not good for a paddle.

Now, here’s the standout. Monday the 14th morning. The wind goes glassy light offshore from the north-northeast, and the swell holds at a solid 12ft from the south-west with a long 14 second period. The energy reading is massive. That is your window. Clean, powerful, and for the experts. Tuesday the 15th is a no-go for paddle surfing – strong side-shore wind kills it.

Midweek, Wednesday the 16th morning looks tempting again. Clean surf with 8ft of south-west swell and light wind. Another good option for the experienced crew.

Then the wheels fall off. From Thursday the 17th through Sunday the 21st, it’s a mess. Strong winds, big swell, and poor quality. The surf is either choppy, too big, or blown out. On the 21st, we are looking at a massive 20ft to 21ft south-west swell. That is way over the top for this spot, even with decent wind. Total fringe stuff.

Into the second week, Monday the 22nd calms down a bit with 16ft of south-west swell and light cross-shore wind. It’s still huge, but the energy is dropping.

Then, a proper reward. Wednesday the 24th morning – glassy conditions, light offshore from the east-northeast, and a clean 7ft south-west swell with a solid 13 second period. This is the standout for the whole run. Clean, manageable, and excellent surf for experienced surfers. That’s the one to circle.

The very last day, Thursday the 24th morning, has a nice 7ft south-west swell under light offshore wind. A clean finish.

So, the best of the best? Grab Wednesday the 9th morning for the big, powerful, clean swell, and absolutely lock in Wednesday the 24th morning for the glassy, clean conditions on a slightly smaller swell. That’s the highlight of the 16 days.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Wed afternoon, min 9°C on Wed morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Fri night. Very mild (max 18°C on Fri night, min 12°C on Mon morning). Winds decreasing (fresh winds from the WNW on Fri night, light winds from the NNE by Mon morning).

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
6
5
5
4
3
3
3
3
4
0
0
1
0
0
3
5
5
0
6
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
WSW
16
3
SW
15
3
SW
15
2.4
SW
15
2.1
SW
14
2
WSW
15
2.2
WSW
15
2.1
WSW
15
3
WSW
18
2.5
WSW
16
3
WSW
16
2.2
WSW
15
2.5
WSW
14
3
WSW
14
3.5
WSW
15
3.5
WSW
14
3.5
SW
14
4
SW
15
4
SW
15
Wave Graph
Metric surfscale
Energy kJ
5424
4032
3622
2525
1785
1737
2042
2055
4724
3844
3803
2241
2791
3773
5376
4439
4976
6123
6290
Wind (km/h)
20
E
20
ENE
10
ENE
25
ENE
25
NE
10
WNW
25
NE
25
NNE
25
NNW
30
WNW
20
W
20
WNW
25
WNW
30
W
15
WSW
10
ESE
5
NNE
20
S
20
SE
Wind State
off
off
off
off
cross-off
cross-on
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-off
cross-off
cross-on
cross-off
High Tide
00:50AM0.59m
8:46AM0.83m
11:34PM0.54m
9:30AM0.77m
10:58PM0.54m
10:08AM0.69m
10:34PM0.56m
10:39AM0.60m
10:24PM0.61m
11:00AM0.51m
10:28PM0.67m
10:57AM0.43m
10:43PM0.72m
Low Tide
1:13AM0.59m
4:50PM0.28m
2:42AM0.51m
5:02PM0.34m
3:34AM0.45m
4:57PM0.40m
4:22AM0.40m
4:28PM0.44m
5:12AM0.37m
3:38PM0.43m
6:09AM0.37m
2:41PM0.40m
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
rain showers
part cloud
part cloud
light rain
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:26
6:26
6:24
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:06
6:06
6:07
6:07
6:07
6:08
6:09
 mm
3
1
1
Temp °C
15
14
19
18
15
18
17
17
18
18
16
17
17
17
17
16
17
16
15
Feels °C
10
10
16
14
10
15
14
13
14
15
12
12
12
13
13
14
16
14
11
  • Map Icons:
  • Break
  • 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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