Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 7 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
19.1°C
1.8° 

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


Cobblestones surf forecast from 24 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 11AM (local time) - 16ft (5.0m), 18s period, WSW swell with cross-onshore winds.
  • Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 16ft (5.0m), 17s period, WSW swell with 15,981 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 11AM (local time) - 16ft (5.0m), 18s 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 Wednesday (Aug 26) at 11AM. The primary swell is predicted to be 5.0m and 18s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 5.0m 17s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Tuesday (Aug 25) at 2PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 26th Aug)16ft (5.0m) 18s
Best Surf11AM (Wed 26th Aug)16ft (5.0m) 18s
Most Powerful 2PM (Wed 26th Aug)16ft (5.0m) 17s

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


The Lowdown

Alright, cobber, Rusty here. Let’s have a look at the bones of this forecast for the next couple of weeks.

The first week is a bit of a write-off, to be honest. We’ve got swell, but the wind gods are against us for most of it. There’s a big, clean window that pops up later, but you’ll need to be patient and pick your moments. This is a reef break, so when it’s on, it’s proper, but it’s not going to be a long, clean run of days.

Monday the 24th kicks off with some waist-to-shoulder high swell from the southwest, with a 13-second period. There’s a bit of energy in the water (3045). But the northwesterly breeze is messing it up – it's cross-shore and making things choppy. The morning is marginal, the afternoon is a full-on choppy mess. Not worth paddling out.

Tuesday the 25th is a washout. The wind is howling from the northwest at 25 mph in the morning, and it's not much better in the afternoon. The swell is up a touch, but it’s lumpy and cross-chopped. Forget it.

Wednesday the 26th is a big red flag. We’ve got a massive pulse of swell coming in – 16.4ft! The energy reading is through the roof (15512). The wind is cross-onshore from the south. This is a case of way, way too much water for this break. Even if the tide was perfect, this is a beast only for the crazies, and honestly, it’s not even that. It’s just too big and messy. This is a day to sit on the headland and watch the ocean flex its muscles. A 16.4ft swell with a 17-18 second period is a lot of moving water.

Thursday the 27th is still blown out, with the swell dropping from 13.1ft to 11.5ft. The south wind is still ruining any chance of clean surf. The energy is still strong (6580 in the morning), but it’s all for nothing with that onshore breeze.

Friday the 28th sees the swell ease a bit, down to the 6.9ft-7.5ft range. The wind is lighter, but it’s still cross-shore, leaving a bit of a chop on the face. The period is down to 12 seconds, so it’s losing its punch. Both sessions are marginal at best. We're just waiting for the bad weather to clear out.

Then we get the standout.

Saturday the 29th is the one to circle on the calendar. The morning is looking *crisp*. The wind goes light and offshore from the east-northeast, grooming the swell. We’ve got a solid 7.5ft of southwest groundswell with a long 16-second period rolling in. The energy is decent (3660). The water is a touch warmer than normal for this time of year. This is the day. The conditions are going to be clean, the reef will be working, and the lines will be proper. This is the standout of the whole run. The afternoon stays clean-ish with a light cross-onshore, and the swell bumps up to 9.8ft, so the morning will be the pick for the best shape and size.

Sunday the 30th is still fun. The swell is a bit bigger, 9.8ft to 11.5ft, with a long 17-second period. The wind is cross-offshore from the north, which will keep the face fairly clean. It’s a step down from Saturday but still worth a session. The energy is still strong (6205), but the wind isn't quite as perfect as the day before.

Monday the 31st – the swell is easing to a still-chunky 8.2ft, with that long period hanging in there. The wind is cross-offshore again, so the surf should be decent, but it’s not as clean as Saturday. This marks the end of the good run, as the wind starts to get fresh again.

And then it goes pear-shaped again.

Tuesday the 1st of September kicks off with a strong nor-northwest wind at 22-25 mph, blowing the surf out. There’s a risk of thunderstorms in the afternoon too. It’s a mess.

Wednesday the 2nd – we've got a new pulse of big swell, back up to 16.4ft, but it's coming with onshore winds. The period has dropped to 11-12 seconds, so it’s a shorter-period, wind-driven mess. The wind is howling and it’s all over the place. This is no good for the reef; it would be a washing machine. You’d be better off with a kiteboard.

From Thursday the 3rd all the way through to the 8th, the outlook is

Short Range Forecast

Moderate rain (total 19mm), heaviest on Wed afternoon. Very mild (max 17°C on Tue morning, min 13°C on Wed afternoon). Winds increasing (light winds from the W on Mon morning, strong winds from the NW by Tue morning).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Fri afternoon, min 10°C on Fri night). Winds decreasing (fresh winds from the S on Thu morning, light winds from the ENE by Sat morning).

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
0
1
0
0
0
!
!
0
0
2
3
2
1
3
5
5
9
5
3
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SW
13
2.5
SW
13
2.5
WSW
12
3
WSW
14
3
WSW
13
4
WSW
14
5
WSW
18
5
WSW
17
4.5
WSW
16
4
SW
15
3.5
SW
14
3
SW
13
2.3
SW
12
2.1
SW
12
1.6
SW
11
2.3
SW
16
3
SW
17
4
SW
19
3.5
WSW
17
3
WSW
16
2.5
WSW
15
Wave Graph
Metric surfscale
Energy kJ
3045
2490
2206
3052
3264
5978
15512
15668
10265
6580
4912
2914
1576
1149
640
2687
6015
10014
6205
4678
3241
Wind (km/h)
15
NW
20
NW
30
NW
40
NW
35
NW
25
WNW
20
S
30
S
35
S
30
S
25
S
15
SE
15
SSE
25
SSE
20
E
10
ENE
10
SW
20
ENE
25
N
15
NNW
10
NNE
Wind State
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross
cross
cross-off
off
cross-on
off
cross-off
cross
cross-off
High Tide
7:24AM0.91m
8:07AM0.91m
8:49AM0.90m
11:28PM0.59m
9:30AM0.85m
11:07PM0.60m
10:11AM0.79m
11:06PM0.63m
10:54AM0.71m
11:15PM0.67m
Low Tide
4:17PM0.29m
4:29PM0.31m
4:41PM0.32m
4:53PM0.34m
2:29AM0.56m
5:05PM0.37m
3:35AM0.51m
5:13PM0.41m
4:35AM0.46m
5:13PM0.46m
part cloud
clear
part cloud
rain showers
rain showers
rain showers
light rain
light rain
light rain
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:47
6:45
6:43
6:43
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:55
5:57
5:58
5:58
5:59
6:00
 mm
1
3
4
3
5
3
Temp °C
15
15
16
17
17
17
14
13
14
13
14
14
14
16
12
13
14
14
15
16
16
Feels °C
11
10
10
10
10
12
11
9
7
6
7
10
10
12
7
11
12
12
11
12
14
  • 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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