Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
18.8°C
1.5° 

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: Saturday 29 Aug, 11PM (local time) - 11ft (3.5m), 19s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 26 Aug, 5PM (local time) - 16ft (5.0m), 17s period, WSW swell with 14,571 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 2PM (local time) - 10ft (3.0m), 17s 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 29) at 2PM. The primary swell is predicted to be 3.0m and 17s period with a secondary swell of 0.6m and 5s. The wind is predicted to be glassy 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 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Tuesday (Aug 25) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Sat 29th Aug)10ft (3.0m) 17s
Best Surf11PM (Sat 29th Aug)11ft (3.5m) 19s
Most Powerful 5PM (Wed 26th Aug)16ft (5.0m) 17s

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


The Lowdown

Alright, folks, Rusty here. Let's break this down. The forecast for Cobblestones over the next couple of weeks is a real mixed bag. We've got some big, powerful groundswell coming, but you've got to be sharp and pick your windows.

This is a reef break for advanced surfers only. It's consistent, and it loves a solid SSW swell. The water temp right now is about 66°, which is a touch warmer than normal for the season, so you might be alright with a slightly lighter suit.

Don't bother paddling out on Tuesday the 25th. It's a total loss. Rain, a 22 mph cross-on breeze, and junky surf. Stay on the beach.

Things fire up from Wednesday the 26th. We're looking at a massive, long-period groundswell from the WSW. We're talking 16-foot waves with a 17 to 18-second period. The combined energy is enormous, reading well over 14,000. This is deep-ocean power. The catch? The wind blows cross-shore or cross-on from Wednesday through Friday, keeping things lumpy and rough. It's doable for the hard core, but it won't win any beauty contests. And at over 8 feet, this is strictly big-wave territory for experts only.

Your absolute standout window is Saturday the 29th. That's the one to circle. The swell drops to a still-very-serious 10 feet from the SW, with a 16 to 17-second period. But the big win is the wind. Saturday afternoon goes glassy, with a light 3 mph offshore breeze keeping the surface *clean*. The combined swell energy is a powerful 5,568. This is the session to target – a proper, clean, heavy groundswell for the seasoned crew. Sunday morning is also looking clean with a light 6 mph offshore, but the wind shifts that afternoon and things get a little bumpy.

After that, it's a messy week. From Sunday the 31st right through the first few days of September, we've got onshore and cross-on winds mixing with a solid 8 to 13-foot swell. It's not great for a clean paddle session.

Keep a note for around the 7th of September. Monday and Tuesday of that week show another big pulse of long-period SSW groundswell, with energy readings over 10,000 and wave heights back up to 15 feet on Tuesday the 7th. The winds look lighter, with a gentle breeze and cleaner conditions on Monday afternoon. That's a promising long-range look – something to keep in the back of your mind.

The rest of that second week looks mostly small, messy, or blown out. It’s going to be all about waiting for the right moment.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed afternoon. Very mild (max 18°C on Tue afternoon, min 13°C on Wed afternoon). Winds decreasing (strong winds from the NW on Tue afternoon, light winds from the SSW by Wed morning).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Sat afternoon, min 10°C on Fri night). Wind will be generally light.

Tue
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
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
6
6
7
5
3
3
2
1
3
4
6
8
6
3
4
2
2
6
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
4
WSW
15
5
WSW
18
5
WSW
17
4.5
WSW
16
4
SW
15
3.5
SW
14
3
SW
13
2.1
SW
12
1.7
SW
12
1.7
SSW
11
2
SW
16
3
SW
17
3.5
SW
18
3
SW
16
3
WSW
16
2.5
WSW
15
2.4
WSW
17
2.5
WSW
16
4
WSW
15
Wave Graph
Metric surfscale
Energy kJ
3499
6930
14437
14571
10127
7031
5421
2873
1264
822
681
1871
5562
7610
5419
4312
3246
3354
2997
7947
Wind (km/h)
35
NW
25
WNW
15
SSW
25
SSE
25
SSE
30
SSE
30
SSE
15
SE
25
SSE
25
SSE
20
SE
20
ESE
5
NNE
15
E
10
NNE
10
NW
5
WSW
20
WSW
15
SSW
15
SSE
Wind State
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
off
cross-off
cross-on
on
on
cross-on
cross
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
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
5
1
5
3
Temp °C
18
17
15
13
13
15
14
13
14
15
12
15
19
16
17
17
16
17
17
13
Feels °C
13
12
12
9
8
8
7
7
8
9
7
11
17
14
16
15
16
14
13
8
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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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