Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 7 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
19.0°C
1.7° 

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


Cobblestones surf forecast from 25 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 2PM (local time) - 16ft (5.0m), 17s period, WSW swell with cross-shore winds.
  • Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 16ft (5.0m), 17s period, WSW swell with 15,162 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 2PM (local time) - 16ft (5.0m), 17s 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 2PM. The primary swell is predicted to be 5.0m and 17s period. The wind is predicted to be cross-shore 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-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Tuesday (Aug 25) at 5PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Wed 26th Aug)16ft (5.0m) 17s
Best Surf 2PM (Wed 26th Aug)16ft (5.0m) 17s
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, mate, Rusty here, looking at the waves on the horizon. Let's break it down.

The next 2 weeks are a bit of a mixed bag at Cobblestones. We've got some serious size rolling in, but the wind is going to be the main character, and it’s not always our friend. The early days are pretty rough, but hang in there because the end of the week and into the start of September is looking like the real deal.

Tuesday (25th August) is a write-off. We’ve got a solid 8ft to 10ft swell, but it’s coming with a strong, howling cross-wind that’s just going to turn it into a mess. Not worth paddling out for. The combined swell energy is pretty hefty (3166-3328), but it’s all for nothing with that wind.

Wednesday (26th August) the size jumps up to a proper 16ft! This is big, heavy water – definitely only for experts. The combined energy is absolutely pumping (14437-14571), but the wind is cross-onshore, keeping it choppy and lumpy. It’s "marginal" at best, not the clean conditions you’d want for that sort of size.

Thursday (27th) is still big, dropping from 13ft to 12ft, but the wind stays cross and strong. The energy is still impressive (5020-6812), but the surface is chopped up. The swell direction is shifting around to a SW, which is a good sign for this spot's optimum.

Friday (28th) we start to see some improvements. The swell drops to a more manageable 8ft in the morning, and the wind goes cross-offshore. The combined energy (1774) is moderate, but the *clean* conditions are what make it worth a look. The afternoon gets a bit lumpy again, but the morning session is the pick.

Now, Saturday the 29th of August is a standout. We’ve got a clean 10ft SW groundswell with a long 18-second period. This is proper groundswell energy, and with a gentle offshore breeze, it’s going to be glassy and perfect. The combined energy is strong at 5861, and the conditions are described as "exceptional" for experts. This is your session. The crowds are only "sometimes" an issue, but for waves like this, I’d expect a few other locals to be keen. This is a top-shelf day for experienced surfers.

Sunday (30th) morning is still excellent, with another 10ft swell and clean conditions. The wind is light and cross-offshore, so the lines will be good. The energy is a bit lower, but still solid (4250).

The run continues into the start of September. Monday the 7th of September is looking like another absolute belter. A clean 7ft swell with a *very* long 21-second period and light offshore wind. That’s a dream combo. The energy (6054) is moderate, but the period that long means real power and nice, clean lines. Conditions are "exceptional" for experts. That is far off, so keep watching the charts, but it has all the ingredients to be the best of the run.

Tuesday (8th September) keeps the good form going. Another 13ft morning with clean offshore wind, and the afternoon looks even better: 12ft with *glass-like* conditions (Slight air) and a score that's the highest on the board. That afternoon session might be the pick of the entire forecast if you're looking at that window.

So, to sum it up: slog through the first few days. The big winner is Saturday the 29th of August and keep your eye on Monday the 7th of September. Both offer that magic combo of size, direction, and clean conditions.

Stay safe out there.

Rusty.

Short Range Forecast

Moderate rain (total 17mm), heaviest on Tue morning. Very mild (max 17°C on Tue morning, min 12°C on Thu night). Winds decreasing (strong winds from the NW on Tue afternoon, light winds from the S by Wed morning).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Sat afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the SSE on Fri afternoon, light winds from the SW by Sun night).

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
AM
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
7
6
4
3
3
3
1
3
4
6
7
5
4
4
3
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
WSW
14
3
WSW
13
4
WSW
15
5
WSW
18
5
WSW
17
4.5
WSW
16
4
SW
15
3.5
SW
14
3
SW
13
2.4
SW
12
1.7
SW
12
1.4
SW
11
2.2
SW
16
3
SW
18
3.5
SW
17
3
SW
15
2.5
WSW
15
2.5
WSW
16
2.4
WSW
17
2.4
WSW
16
3
WSW
16
Wave Graph
Metric surfscale
Energy kJ
2981
3314
6930
14437
14571
9888
6812
5020
2873
1710
822
497
2354
5861
6625
4250
3416
3156
3199
2936
4724
Wind (km/h)
40
NW
35
NW
20
WNW
15
S
20
SSE
25
SSE
25
SSE
30
SSE
20
SE
25
SE
30
SSE
20
ESE
20
ESE
15
ENE
15
ESE
10
NNE
10
WNW
10
SSE
15
WSW
20
W
15
SSW
Wind State
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
off
cross-off
cross-off
cross-on
cross
on
on
cross-on
High Tide
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
11:39AM0.61m
11:33PM0.73m
Low Tide
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
5:41AM0.44m
4:55PM0.49m
rain showers
rain showers
rain showers
light rain
light rain
light rain
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
6:45
6:43
6:43
6:41
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:57
5:58
5:58
5:59
6:00
6:00
 mm
2
3
5
1
2
4
Temp °C
17
17
17
15
15
13
14
15
14
15
16
12
16
19
17
19
18
17
16
17
17
Feels °C
12
10
11
13
11
8
8
8
9
9
10
6
13
17
16
18
16
17
14
13
14
  • 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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