Cobblestones Surf Break

Lat Long: 33.88° S 114.98° E

Cobblestones Surf Forecast and Surf Report

Issued: 1 am 18 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: Sunday 19 Jul, 11PM (local time) - 10ft (3.0m), 13s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 18 Jul, 2PM (local time) - 18ft (5.5m), 16s period, WSW swell with 13,838 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 11PM (local time) - 10ft (3.0m), 13s 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 Sunday (Jul 19) at 11PM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 1.5m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cobblestones in the next 16 days are 5.5m 16s and forecast to arrive on Saturday (Jul 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Jul 23) at 2PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 19th Jul)10ft (3.0m) 13s
Best Surf11PM (Sun 19th Jul)10ft (3.0m) 13s
Most Powerful 2PM (Sat 18th Jul)18ft (5.5m) 16s

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


The Lowdown

Alright, Rusty here. Let's have a look at the only game in town for the next couple of weeks.

Right off the bat, the first few days are a write-off. We’re dealing with a massive, powerful swell from the WSW, but it’s getting hammered by strong onshore winds. Cobblestones is a reef break, so it needs clean conditions, but we’re seeing a solid 18 ft swell with 25 mph winds from the west on Saturday morning. The combined energy is a massive 8292 (moderate to strong), but the onshore wind is trashing it. Saturday afternoon brings a 16 ft swell at a very long 16-second period, and the energy jumps to 12068 (very strong), but again, poor surf conditions. Sunday is a bit smaller at 12 ft, but the wind is still on it, making it marginal at best. The first few days are a complete washout for a proper surf.

We’ve got a gap of a few days with no real standout until we get to Thursday morning, the 23rd of July. That’s when things start to get interesting. We’ve got an 8 ft SW swell (13-second period) with a nice cross-offshore wind from the north. The combined energy is 2484 (moderate), and the description says “excellent surf conditions for experienced surfers”. This is a clean window, and for a reef, that’s a good sign. The water temp is about average for the time of year, so nothing wild there.

But the real standout, the one you’ve been waiting for, is the end of the month. Friday the 31st of July is absolute gold. The afternoon session looks exceptional. We’re looking at a 10 ft WSW swell with a very long 18-second period, combined energy of 6331 (very strong), and light offshore winds from the northeast. The description says “exceptional surf conditions for expert surfers”. This is a proper groundswell, and for a reef like Cobblestones, that long period will wrap in beautifully. The 18-second period means the sets will be spaced out, making the paddle out feel easier, but at 10 ft, this is strictly for experts. It’s too big for beginners.

A couple of other days are worth a mention. The morning of Monday the 27th of July has an 8 ft SW swell (15-second period) with offshore wind from the northeast. That’s clean, good for experienced surfers. And then Saturday the 29th of July is pumping again with a 16 ft SW swell, but the cross-shore wind will make it a bit lumpy, so it’s marginal. Still, that’s a lot of energy (13874 on the Wednesday morning) for someone who knows what they’re doing.

Overall, the first week is a bust. The second week, especially the 31st, is the one to circle. Get ready for some big, clean, powerful waves at Cobblestones. The crowds are listed as “sometimes”, so you might get a few others out there, but with that size, it’ll thin out quick.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Sat morning. Very mild (max 16°C on Sun afternoon, min 13°C on Sun night). Winds decreasing (strong winds from the W on Sat morning, calm by Sun night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Tue night, min 13°C on Wed night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
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
3
3
4
2
0
0
1
1
4
5
5
5
4
4
3
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5.5
WSW
12
5
WSW
16
4
WSW
15
3.5
WSW
14
3
WSW
13
2.5
SW
12
2.5
SW
13
2.4
SW
14
3
SW
13
3
SW
14
3
SW
13
3
SW
13
3.5
SW
14
3.5
SW
14
3
SW
14
2.5
SW
14
2.1
SW
13
2.1
SW
13
2.1
SW
13
2.2
SW
12
1.8
WSW
11
Wave Graph
Metric surfscale
Energy kJ
8948
12531
6976
4097
2964
1952
2049
2317
2570
2967
2522
3174
4207
4586
3569
2557
1474
1541
1387
1344
859
Wind (km/h)
40
W
30
W
25
W
15
SW
15
SW
5
NNE
15
WNW
25
W
20
SSW
15
SSW
15
SSW
10
SSE
5
ENE
0
NE
15
NE
20
NNE
10
NNE
15
NNE
25
NW
20
NW
20
W
Wind State
on
on
on
on
cross-on
glassy
cross-on
on
cross-on
cross-on
cross-on
cross
off
glassy
off
cross-off
cross-off
cross-off
cross
cross-on
on
High Tide
10:50AM0.82m
10:19AM0.72m
7:20AM0.67m
3:33AM0.72m
4:03AM0.78m
4:52AM0.84m
5:39AM0.90m
Low Tide
7:43PM0.50m
6:40PM0.52m
5:16PM0.50m
4:28PM0.44m
4:18PM0.38m
4:25PM0.34m
4:37PM0.32m
light rain
rain showers
part cloud
rain showers
part cloud
part cloud
light rain
rain showers
rain showers
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
rain showers
<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
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:31
5:31
5:32
5:32
5:34
 mm
3
1
3
2
1
2
1
Temp °C
14
15
15
15
16
15
15
16
16
14
14
15
14
15
15
13
14
15
18
18
17
Feels °C
4
8
8
11
12
13
12
10
11
10
9
12
11
14
13
10
11
12
13
14
13
  • 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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