Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 pm 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cobblestones sea temperature is
19.5° 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 17 Jul 2026:

  • Best quality surf: Saturday 18 Jul, 5PM (local time) - 16ft (5.0m), 16s period, WSW swell with onshore winds.
  • Most powerful swell: Saturday 18 Jul, 2PM (local time) - 18ft (5.5m), 16s period, WSW swell with 13,731 kJ wave energy.
  • Next surfable swell (1★+): Saturday 18 Jul, 5PM (local time) - 16ft (5.0m), 16s 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 Saturday (Jul 18) at 5PM. The primary swell is predicted to be 5.0m and 16s period with a secondary swell of 4.5m and 16s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 5.5m 16s and forecast to arrive on Saturday (Jul 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sat 18th Jul)16ft (5.0m) 16s
Best Surf 5PM (Sat 18th Jul)16ft (5.0m) 16s
Most Powerful 2PM (Sat 18th Jul)18ft (5.5m) 16s

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


The Lowdown

G’day, Rusty here. We’ve got a real mixed bag coming up at Cobblestones. This exposed reef break is about to get hammered by a lot of south-west swell, but conditions are going to be tricky for a while. The ocean’s sitting at 67°F, a touch warmer than usual for this time of year – you won’t need the thickest rubber.

The first window worth paddling out for is Friday the 17th of July, late afternoon. It’s not a classic, but you’ll find 6ft of groundswell out of the WSW with a 12-second period. The wind is a cross-off NNE breeze at 16 mph, keeping the surface clean, but the combined wave energy is only moderate (1063). It’s a solid session for the experienced mob, but don’t expect perfection – the tide might throw a few lumps at you.

The real standout, and I mean the one to circle on your calendar, is Wednesday the 22nd of July, the morning session. The wind drops right out to glass – a complete glass-off – with only 3 mph from the NNE. That’s going to leave the 10ft swell (SW, 13 seconds) looking like a mirror. The energy is up there (3581), so the reef will be working. This is for the advanced crew only – it’s 10ft, which is proper. You’ll be threading some beautiful lines.

Thursday the 23rd morning is another crisp option with 10ft (SW, 14 seconds) and light cross-off air from the north at 6 mph. Clean again, and the energy is solid (2947). After that, things get messy. Saturday the 25th and Sunday the 26th have swell, but the wind swings onshore or cross-on, and the surface gets chopped. Sunday the 26th afternoon sees a big jump in period – 13ft, 17 seconds, from SW – but it’s cross-shore wind (12 mph) and the energy is massive (8744). It’s a raw, powerful day, but not clean enough for my taste.

Look out for Tuesday the 28th of July. The morning goes glassy again, with 8ft (SW, 13 seconds) and a pure easterly glass-off at 3 mph. That’s another little gem – low combined energy (2417) but perfect conditions for the experienced surfer. The afternoon stays clean with a cross-off breeze.

A heads-up: from Thursday the 30th onwards, we’re looking at a big, blown-out mess. Winds crank up onshore, swells push over 12ft and up to 23ft on the 1st of August, and the wave energy readings are off the charts (up to 22434). That’s serious power, but with the wind and the size, it’s only for the lunatics in the crew – and honestly, the setup looks more interesting for kite surfing than a paddle session. The conditions will be cross-onshore and lumpy.

So, my pick: Wednesday the 22nd of July morning, no question. Glassy offshores, solid 10ft groundswell, and a reef that’ll handle the energy. Get out there before it turns nasty.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Fri night. Very mild (max 17°C on Fri afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the WNW on Fri night, calm by Sun night).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Mon night. Very mild (max 16°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light.

Fri
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
!
0
2
3
4
3
0
0
3
1
5
5
4
5
4
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
WSW
12
4.5
W
13
5.5
WSW
12
5
WSW
16
4
WSW
15
3.5
WSW
14
3
WSW
13
3
SW
13
2.5
SW
13
2.3
SW
14
2.5
SW
11
2.5
SW
14
3
SW
13
3
SW
13
3
SW
13
3
SW
13
3
SW
14
3
SW
14
2.5
SW
14
2.3
SW
13
Wave Graph
Metric surfscale
Energy kJ
1047
6276
7731
12083
6855
4097
3010
2576
2114
2155
1840
2775
2692
3020
3581
3415
3436
2940
2323
1834
Wind (km/h)
25
NNE
50
WNW
40
W
30
W
25
W
20
SW
10
SW
5
WNW
10
NW
20
W
20
SSW
15
SSE
15
S
10
ESE
5
NNE
10
WSW
5
ENE
10
N
5
NW
5
NW
Wind State
cross-off
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
cross
cross-on
cross-off
glassy
on
off
cross-off
cross-on
cross
High Tide
10:50AM0.82m
10:19AM0.72m
7:20AM0.67m
3:33AM0.72m
4:03AM0.78m
4:52AM0.84m
Low Tide
8:00PM0.45m
7:43PM0.50m
6:40PM0.52m
5:16PM0.50m
4:28PM0.44m
4:18PM0.38m
4:25PM0.34m
part cloud
thunderstorm
rain showers
rain showers
rain showers
rain showers
part cloud
cloud
rain showers
light rain
rain showers
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:20
7:20
7:20
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:31
5:31
5:32
5:32
 mm
6
3
1
1
1
2
1
3
Temp °C
17
17
14
15
15
15
15
15
15
16
15
14
15
13
12
13
14
13
15
15
Feels °C
11
11
4
7
8
10
11
12
13
12
10
9
10
9
10
11
12
11
14
14
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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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