Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
19.5° 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 31 Jul 2026:

  • Best quality surf: Thursday 6 Aug, 5PM (local time) - 18ft (5.5m), 16s period, WSW swell with onshore winds.
  • Most powerful swell: Thursday 6 Aug, 8PM (local time) - 20ft (6.0m), 15s period, WSW swell with 15,480 kJ wave energy.
  • Next surfable swell (1★+): Saturday 1 Aug, 8PM (local time) - 15ft (4.5m), 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 Saturday (Aug 01) at 8PM. The primary swell is predicted to be 4.5m and 15s period. 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 6.0m 15s and forecast to arrive on Thursday (Aug 06) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Thursday (Aug 06) at 8AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 1st Aug)15ft (4.5m) 15s
Best Surf 5PM (Thu 6th Aug)18ft (5.5m) 16s
Most Powerful 8PM (Thu 6th Aug)20ft (6.0m) 15s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into it. We’ve got a solid run of swell on the cards for Cobblestones, but it’s a real mixed bag with the wind. The water is sitting at 66°, which is a touch warmer than normal for this time of year, so you might not need that extra thick wetsuit.

The first real chance to paddle out comes Friday, July 31st, but honestly, it’s a write-off. We’ve got 12ft to 13ft SW groundswell rolling in with a very long 16-second period, but the 30 km/h cross-onshore wind is going to chop it up. The combined energy is already high (6666), but with that wind, it’s just not worth it.

Saturday, August 1st is where it starts getting interesting. The morning still has a messy 13ft SW swell with a 14-second period and cross-onshore wind, but by the afternoon, the wind swings to a gentle cross-shore. The swell jumps to 16ft from the SW, still with a long 15-second period, and the energy is pumping (10760). The surf is marginal, but with that size and cleaner wind, it’s a big, powerful wave. This is one for experienced surfers only – that 16ft is serious.

Now, Sunday, August 2nd is where the magic happens. The morning cleans right up with a NE 20 km/h cross-offshore wind, and the swell settles to a still-chunky 12ft from the SW, with a 13-second period. The energy is strong (3996). But the afternoon is the standout. A slight 5 km/h NNE wind goes cross-offshore, dropping the swell to 10ft but keeping that sweet SW direction. The energy is still strong (4020), and the conditions are described as excellent for experienced surfers. This is your best window in the near term – clean, powerful, and heavy.

Monday, August 3rd morning is a gem for the early birds. The wind goes glassy, just 5 km/h from the west, and the swell is a manageable 7ft with a very long 15-second period from the SW. The energy is moderate (1840), but that glassy surface will make for some of the cleanest, most lined-up waves you’ll see all week. The afternoon turns a bit wonky with a light cross-onshore, so get out there early.

Tuesday, August 4th morning sees the swell back up to 12ft from the SW with a very long 17-second period. The energy is strong (7945), and the wind is light cross-onshore. It’s a solid, powerful groundswell, but watch for the period making it a bit straight at this reef break. The afternoon is a write-off with onshore wind.

Wednesday, August 5th morning is another big one. The swell is 15ft from the SW, period 16 seconds, and the wind is a gentle cross-shore. The energy is massive (10010). This is a huge, powerful swell. The afternoon gets messy with rain and cross-onshore wind, so the morning is the only shot.

After Wednesday, the wind turns nasty. From Thursday, August 6th right through to the 15th, we’re looking at strong cross-onshore, onshore, and even near-gale force winds from the west and southwest. The swell stays big, often over 13ft and peaking at 26ft on the 9th, with energy readings hitting 37177. The swell is too big for the break, and the wind is just blowing it out. This is kite-surfing territory, not paddle surfing. The reef at Cobblestones is exposed, and with that much SW power and onshore wind, it’s a washing machine. After the 13th, the swell drops a bit, but the wind keeps it ugly.

Overall, the standout is the Sunday afternoon session on August 2nd, with the clean, powerful 10ft SW swell and light offshore wind. The Sunday morning and Monday morning are also excellent. After that, it’s a long wait for anything decent, and the forecast is too far out to get excited about the 14th and 15th.

Rusty.

Short Range Forecast

Light rain (total 8mm), mostly falling on Fri afternoon. Very mild (max 18°C on Fri afternoon, min 9°C on Sun morning). Winds decreasing (fresh winds from the WSW on Fri night, calm by Mon morning).

Days 5-7 Weather Summary

Heavy rain (total 20mm), heaviest during Wed night. Very mild (max 17°C on Wed night, min 14°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the NW by Thu morning).

Fri
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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
8
4
5
4
4
4
5
0
0
0
7
0
0
0
!
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
SW
16
4
SW
15
4
SW
14
5
SW
15
4
SW
14
3.5
SW
13
3
SW
13
2.5
SW
14
1.9
SW
15
2.1
SW
16
2.5
SW
15
3.5
SW
17
3.5
SW
16
3.5
WSW
16
4.5
SW
16
4.5
WSW
16
4.5
WSW
16
4.5
WSW
16
5.5
WSW
16
5.5
WSW
15
Wave Graph
Metric surfscale
Energy kJ
7359
7046
6472
10760
6245
3775
2923
2458
1486
2157
2742
7454
5678
6034
10754
9639
10895
10279
15002
13858
Wind (km/h)
30
W
30
SW
25
S
15
SSE
10
E
20
NE
10
NNE
10
ENE
5
NNE
5
WNW
5
E
35
WSW
30
WSW
25
WSW
15
NNW
20
WNW
35
WNW
40
NW
30
SW
30
SSW
Wind State
cross-on
cross-on
cross-on
cross
off
cross-off
cross-off
off
glassy
glassy
glassy
on
on
on
cross
cross-on
cross-on
cross
on
cross-on
High Tide
1:42AM0.62m
10:35AM0.91m
1:04AM0.64m
11:12AM0.81m
1:08AM0.68m
11:43AM0.70m
1:29AM0.72m
11:27AM0.59m
2:06AM0.78m
3:03AM0.84m
4:24AM0.90m
Low Tide
6:21PM0.40m
2:31AM0.62m
6:33PM0.44m
4:26AM0.61m
6:39PM0.48m
6:05AM0.60m
6:25PM0.52m
9:04AM0.58m
5:15PM0.53m
2:30PM0.46m
2:35PM0.36m
thunderstorm
rain showers
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
rain showers
rain showers
light rain
rain showers
part cloud
rain showers
rain showers
thunderstorm
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:11
7:11
7:09
7:09
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:39
5:39
5:40
5:42
5:42
5:43
 mm
6
2
1
3
1
3
1
5
6
8
1
Temp °C
18
16
14
13
13
11
13
13
15
16
15
16
15
16
16
16
17
17
16
14
Feels °C
12
8
7
8
9
6
9
10
14
15
15
13
8
10
13
12
12
11
9
5
  • 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