Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
17.8°C
0.8° 

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


Cobblestones surf forecast from 14 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 2AM (local time) - 11ft (3.5m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Saturday 19 Sep, 5AM (local time) - 11ft (3.5m), 15s period, WSW swell with 5,669 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 2AM (local time) - 11ft (3.5m), 14s 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 Tuesday (Sep 15) at 2AM. The primary swell is predicted to be 3.5m and 14s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 3.5m 15s and forecast to arrive on Saturday (Sep 19) at 5AM. Winds are predicted to be 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 Friday (Sep 18) at 2AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 15th Sep)11ft (3.5m) 14s
Best Surf 2AM (Tue 15th Sep)11ft (3.5m) 14s
Most Powerful 5AM (Sat 19th Sep)11ft (3.5m) 15s

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


The Lowdown

G’day, Rusty here. Only Cobblestones is in the mix, and it’s a heavy reef for the advanced crew. Water temp is about 64°, pretty normal for the season.

Starting Monday the 14th, you’ve got a solid 13-foot SW groundswell (14 seconds) with SE wind at 16 mph cross-off, keeping it clean. Combined energy is 5602 – that’s a lot of power. Tuesday the 15th morning is cleaner: 10-foot SW swell (14 seconds), east wind at 6 mph offshore, glassy. Good for the experienced. Energy 4216. Tuesday afternoon gets a bit choppy, so hit it early.

Wednesday the 16th morning is 7-foot SW swell (13 seconds) with NE cross-off wind, clean enough. Energy 1865. That afternoon though – dead calm, NW wind at 0 mph, and 5-foot SW swell (13 seconds). Glassy, perfect, energy 1250. A quiet standout.

Thursday the 17th and Friday the 18th turn rough. Friday morning has a 10-foot WSW groundswell (17 seconds – very long period) with N wind at 19 mph cross-off, clean but big. Energy 5508. But the arvo brings a gale, onshore, and it’s blown out. Saturday the 19th through to the 22nd is mostly poor – onshore winds, rain, messy. Tuesday the 22nd arvo has a massive 13-foot WSW swell (14 seconds) with onshore wind, energy 12222, but it’s a no-go for surfing.

Then a gap of nasty days until Wednesday the 23rd morning: 16-foot WSW swell (13 seconds), cross-shore wind, energy 7542 – big and lumpy, experts only. The true standout is Saturday the 26th: 12-foot SW swell (16 seconds), energy 6451, and glassy with NE wind at 3 mph. That’s exceptional for experts. Sunday the 27th morning is also glassy with 8-foot SW swell (14 seconds), energy 2722, clean and fun. Monday the 28th morning has 8-foot SW swell (16 seconds) with cross-off NNE wind at 9 mph – another good window.

Cobblestones can get crowds sometimes, but with these sizes, the lineup should be for the dedicated crew. Best session: Saturday the 26th morning, hands down.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Wed afternoon, min 10°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 10mm), heaviest on Fri morning. Very mild (max 19°C on Thu afternoon, min 13°C on Fri afternoon). Winds decreasing (gales from the SW on Fri afternoon, light winds from the WNW by Sun morning).

Mon
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
5
5
4
4
3
4
2
2
1
1
4
0
0
0
0
1
0
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)
4
SW
14
3.5
SW
14
3
SW
14
3
SW
14
2.5
SW
14
2
SW
13
1.6
SW
13
1.5
WSW
14
1.6
WSW
14
1.5
WSW
13
1.6
WSW
12
3
WSW
17
2.5
WSW
16
3
WSW
16
3.5
WSW
14
3
WSW
14
2.5
WSW
13
2.4
WSW
12
2.4
WSW
13
3
SW
14
Wave Graph
Metric surfscale
Energy kJ
5602
4691
4216
3619
2534
1380
865
961
957
808
715
4947
3381
4112
4574
3402
2310
1679
1828
4168
Wind (km/h)
25
SE
25
E
10
E
15
SSE
20
E
20
NE
0
NW
25
NE
25
NNW
30
NNW
35
N
30
N
65
SW
35
WSW
30
W
25
W
20
WNW
20
NW
25
WNW
20
WNW
Wind State
cross-off
off
off
cross
off
cross-off
glassy
cross-off
cross
cross
cross-off
cross-off
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
10:43PM0.72m
9:41AM0.38m
11:04PM0.76m
11:28PM0.79m
11:55PM0.81m
00:25AM0.81m
1:03AM0.80m
2:38AM0.77m
Low Tide
2:41PM0.40m
7:39AM0.38m
2:06PM0.35m
2:02PM0.31m
2:13PM0.28m
2:26PM0.27m
2:39PM0.27m
2:51PM0.28m
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
light rain
rain showers
light rain
cloud
part cloud
light rain
cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:18
6:16
6:16
6:15
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:10
6:10
6:12
6:13
6:13
6:14
 mm
4
3
2
1
2
2
Temp °C
17
15
17
20
18
20
23
23
19
19
18
16
16
14
15
16
16
17
17
17
Feels °C
14
11
15
18
15
17
22
21
17
17
14
13
7
6
9
11
12
13
13
13
  • 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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