Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
18.4°C
1.2° 

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


Cobblestones surf forecast from 5 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 2PM (local time) - 13ft (4.0m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 6 Sep, 8PM (local time) - 15ft (4.5m), 17s period, SW swell with 11,855 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 11AM (local time) - 11ft (3.5m), 16s 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 Monday (Sep 07) at 11AM. The primary swell is predicted to be 3.5m and 16s 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 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 1.4m 5s period and expected on Monday (Sep 07) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Mon 7th Sep)11ft (3.5m) 16s
Best Surf 2PM (Tue 8th Sep)13ft (4.0m) 16s
Most Powerful 8PM (Sun 6th Sep)15ft (4.5m) 17s

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


The Lowdown

G’day, Rusty here. Let's get into it. The ocean’s got some pulse over the next couple of weeks, but it's a bit of a mixed bag. There's a solid window of proper waves early on, then it gets messy, and then there's a late, big and powerful pulse on the horizon. Patience is key.

We start this Saturday the 5th, but honestly, it’s a write-off. There’s 10ft of WSW swell hitting Cobblestones (South Africa) with a moderate cross-onshore breeze and rain. The water’s a touch warmer than normal at 65°F, but that’s about all. It’s choppy and poor.

Sunday the 6th is still rough. The swell bumps up to 13ft–15ft from the SW, but that fresh cross-shore wind will have it lumpy and messy. Tons of energy in the water (5942 on the morning, jumping to 10964 by afternoon), but it's not doing anyone any favors.

Now, Monday the 7th is where it starts to turn on. The swell holds at 12ft from the SW, but the wind swings to a gentle cross-offshore breeze, and the ocean cleans right up. A shifting, powerful reef break like this is strictly for the experienced crew, but for them, it’s exceptional. The period is a solid 16 seconds, proper groundswell, and it’s going to be stacking up nicely. This is a standout.

Tuesday the 8th is the next real gem. The swell stays at 13ft from the SW, the wind is light and cross-offshore, and it’s clean. The energy readings are strong (9278 in the morning), and it's looking exceptional. Another day for experts only at this size, but if you can handle it, this is the pick of the first week. Tuesday afternoon is just as good, with a gentle breeze and 13ft from the WSW.

Wednesday the 9th eases off to 10ft, but the wind goes offshore. The morning is a moderate offshore, but the afternoon is the one—light NE offshore, clean faces, and solid 15-second period. A great day for experienced surfers.

From Thursday the 10th through Saturday the 12th, we’re in a lull. Swell drops to around 7ft, winds go variable, and quality fades. Thursday is clean-ish but small. Friday is worse, with cross-chop and a shower. Saturday the 12th is back to 10ft but with a fresh cross-onshore, so it’s poor. This stretch is best spent doing something else.

Sunday the 13th is a full-on washout. Onshore winds, rain, and 13ft of lumpy, messy swell. No good for paddling; if anything, the setup looks more interesting for kite surfing than surfboard riding.

Monday the 14th brings a bit of relief. The wind goes light and cross-offshore, the swell settles to a clean 12ft from the SW. A solid day for the advanced crew, though not quite as powerful as the previous Monday.

From Tuesday the 15th through Wednesday the 16th, we’re in a smaller, cleaner patch. Tuesday is average, but Wednesday morning is a standout for conditions, with the wind going completely glassy (0 km/h) and a 8ft WSW swell rolling through. Lovely and clean for those who want a bit less size and some real quality.

Then, from Thursday the 17th through Friday the 18th, we get another stormy mess. Onshore winds, rain, and building, lumpy swell. Poor conditions again.

Now, for the long-range: Saturday the 19th. The model is showing a huge pulse of SW groundswell, 16-second period, and a truly massive energy reading – 16085 in the morning, 15305 in the afternoon. We’re talking 20ft to 18ft of swell. The wind is onshore, which is a problem, but the note says wind and tide are favorable. At this size, it’s far too big for almost everyone, strictly for the most experienced big-wave chargers. It’s a promise, but it’s a long way out, so treat it with caution. Sunday the 20th drops back to 13ft, but it’s still messy.

So, the best of the first week is clearly Tuesday the 8th, with Monday the 7th a close second. The big, late swell on the 19th is the one to circle on the calendar, but it's a week and a half away, so let's see how it firms up.

Stay stoked.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Sat afternoon. Very mild (max 17°C on Mon afternoon, min 10°C on Sun night). Winds decreasing (fresh winds from the S on Sat night, light winds from the SE by Mon morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Tue afternoon, min 9°C on Wed morning). Wind will be generally light.

Sat
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
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
3
6
8
7
4
7
8
8
6
4
5
4
2
3
4
2
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
WSW
13
3
SW
13
4
SW
12
4.5
SW
17
4.5
SW
17
3.5
SW
16
3.5
SW
16
4
SW
16
4
SW
16
4
WSW
16
3.5
SW
16
3
SW
16
3
SW
15
2.5
SW
15
2.1
SW
14
2
SW
14
2
WSW
15
1.9
WSW
14
1.7
WSW
18
3
WSW
17
Wave Graph
Metric surfscale
Energy kJ
2750
3344
4672
10921
9898
6877
6080
7520
9278
7446
6444
4960
4086
2822
1736
1581
1714
1337
1816
4621
Wind (km/h)
25
WNW
35
SSE
30
SSE
30
SSE
15
ESE
15
SE
30
SSE
20
ESE
20
ESE
15
SE
20
E
25
ENE
15
NE
20
ENE
25
NE
10
NNW
5
N
20
NW
35
NW
30
W
Wind State
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross
glassy
cross
cross
cross-on
High Tide
5:24AM0.86m
6:53AM0.88m
7:55AM0.87m
00:50AM0.59m
8:46AM0.83m
11:34PM0.54m
9:30AM0.77m
10:58PM0.54m
10:08AM0.69m
10:34PM0.56m
Low Tide
2:41PM0.19m
3:20PM0.18m
3:55PM0.19m
4:26PM0.23m
1:13AM0.59m
4:50PM0.28m
2:42AM0.51m
5:02PM0.34m
3:34AM0.45m
4:57PM0.40m
4:22AM0.40m
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:30
6:28
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:04
6:04
6:05
6:06
6:06
6:07
6:07
 mm
3
1
3
Temp °C
16
15
15
15
12
14
17
13
15
20
17
15
20
19
16
19
17
18
19
17
Feels °C
10
9
7
7
6
10
12
7
10
16
13
9
17
15
10
15
16
15
14
11
  • 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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