Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
19.4° C
1.9° 

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


Cobblestones surf forecast from 4 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 5PM (local time) - 15ft (4.5m), 16s period, WSW swell with onshore winds.
  • Most powerful swell: Saturday 8 Aug, 8PM (local time) - 25ft (7.5m), 17s period, SW swell with 33,054 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 5PM (local time) - 15ft (4.5m), 16s period with WSW 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 Thursday (Aug 06) at 5PM. The primary swell is predicted to be 4.5m and 16s period with a secondary swell of 4.0m and 16s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 7.5m 17s and forecast to arrive on Saturday (Aug 08) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 6th Aug)15ft (4.5m) 16s
Best Surf 5PM (Thu 6th Aug)15ft (4.5m) 16s
Most Powerful 8PM (Sat 8th Aug)25ft (7.5m) 17s

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


The Lowdown

Alright, let’s get into it. Cobblestones is the only wave on the menu for this whole stretch, and it’s a heavy, expert-only reef break that’s not about to take it easy on you. The first week is all about size and grunt, but there are a couple of windows where it cleans right up and becomes something special.

The water’s sitting at 67° Fahrenheit, which is a touch warmer than usual for this time of year. You’ll feel that little bit of extra warmth when you’re sitting out there waiting for the sets.

The opening days are all about raw power. Wednesday morning has a solid 16ft SW swell with a 16-second period. The energy is strong, 11762, and the wind is light westerly, which is onshore, but it’s not howling. It’s going to be big and somewhat messy. By Thursday morning, the wind picks up to 19 mph from the northwest, making things lumpy and cross. It’s a beast of a wave, but it's going to be tricky. Thursday afternoon sees the swell nudge up to 15ft, but the energy jumps way up to 18040. It’s pushing hard, but the WSW wind at 19 mph is on it, making it a real battle. The waves are just too big for this set-up right now.

Friday is a write-off. The wind is up to 22 mph from the west, and the swell is still 13ft. It’s going to be a blown-out mess. Don’t even think about it.

The weekend is where it gets properly serious. Saturday morning sees a 23ft SW swell with a near-gale cross-onshore wind at 31 mph. The energy is huge, 21822. This is heavy, dangerous, and ugly. Saturday afternoon pushes it even further: 25ft of swell and 32035 energy. This is a proper storm surf. It’s only for the crazy ones, and even then, it isn't good. This trend continues into Sunday and Monday, with 18ft to 23ft swells and strong cross-onshore winds. The energy is staying in the four-figure range, and it’s just relentless. It’s all just too big and too blown out to be any fun for anyone.

Now, hold on. The middle of the week is where the magic happens. Wednesday the 12th. The swell drops to a more manageable 15ft, but the big news is the wind. Morning brings a light 3 mph cross-offshore breeze from the north, and the afternoon goes totally glassy. The energy is still strong, around 9000, and it’s a clean, lined-up swell. This is the standout of the whole forecast. It’s still a big, serious wave for experts only, but it will be absolutely perfect. Thursday the 13th is also a good one, with a light cross-on wind and a similar 15ft of SW swell, but with a slightly longer 17-second period. It’s going to be a touch ripply but still very, very good.

The following Friday and Saturday, the 14th and 15th, are still good, with clean conditions and a bit less size, around 12ft to 13ft. The wind is a gentle cross-offshore, so it should be fun for the advanced crew. The swell direction is WSW, which is still good for the spot.

Then, the pattern shifts again. Sunday the 16th gets a bit more wind and some lumpy conditions. The following Monday the 17th, the ocean ramps back up. The swell jumps back to 20ft with a 17-second period, and the energy goes back to 21776. It’s another big, powerful swell and the wind is back onshore. It’s another period of too much of a good thing.

The last few days of the window are a mix. Tuesday the 18th has a solid 15ft swell but with a cross-shore breeze, making it a bit bumpy. Then Wednesday the 19th is looking poor again with strong cross-onshore winds and a 16ft swell. It’s all just a bit messy. The final day, Thursday the 20th, settles down but never gets truly clean. It’s just average.

So, the long and short of it is: this is a two-week block of serious, expert-only surf. The standout is clearly Wednesday the 12th, with that glassy, clean, powerful swell. Thursday the 13th is your second-best bet. Everything else is either too big, too windy, or too inconsistent to be a top pick. It’s not for beginners, that’s for sure. If you’re not comfortable in 8ft-plus surf, you’re staying on the beach for most of this run.

Rusty.

Short Range Forecast

Moderate rain (total 15mm), heaviest on Thu afternoon. Very mild (max 17°C on Wed night, min 11°C on Fri night). Winds increasing (light winds from the W on Wed afternoon, near gales from the WSW by Fri night).

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Sat morning. Very mild (max 15°C on Sun afternoon, min 10°C on Sat morning). Winds decreasing (near gales from the SSW on Sat morning, moderate winds from the SSW by Mon night).

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
7
7
6
6
!
6
0
0
0
!
!
!
!
0
0
!
!
!
!
!
7
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
16
5
WSW
16
4.5
WSW
16
4
WSW
16
4.5
WSW
16
4.5
SW
15
4
SW
15
4
WSW
15
6
WSW
12
7
SW
15
7.5
SW
16
7
SW
17
5.5
SW
16
4.5
SW
16
5.5
SW
10
6.5
SW
14
7
SW
16
7
SW
15
6.5
SW
16
6
SW
16
5
SW
16
Wave Graph
Metric surfscale
Energy kJ
11762
11797
10687
8684
9527
9170
7631
6792
9667
21822
32035
26466
15045
9954
5747
17747
22644
20835
20349
17245
11140
Wind (km/h)
15
W
10
NW
25
NNW
30
NW
30
WSW
20
SW
30
W
35
W
55
WSW
50
SSW
45
SW
30
SSW
25
WSW
30
W
45
SW
35
SSW
35
SSW
25
SSW
20
SW
20
SSW
15
S
Wind State
on
cross-on
cross
cross
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
3:03AM0.84m
4:24AM0.90m
5:45AM0.95m
6:51AM1.00m
7:46AM1.03m
8:35AM1.02m
Low Tide
2:30PM0.46m
2:35PM0.36m
3:09PM0.28m
3:46PM0.22m
4:24PM0.20m
5:00PM0.20m
5:34PM0.24m
rain showers
rain showers
rain showers
cloud
light rain
cloud
part cloud
cloud
rain showers
light rain
light rain
cloud
cloud
light rain
rain showers
part cloud
light rain
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:07
7:07
7:07
7:05
7:05
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:43
5:44
5:45
5:45
5:45
5:46
 mm
2
1
2
4
6
4
1
2
6
1
Temp °C
16
16
17
17
17
16
14
15
14
11
12
13
14
15
15
13
13
14
14
15
14
Feels °C
13
14
12
11
11
11
8
7
5
-1
2
4
9
10
8
4
4
7
10
10
10
  • 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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