Surf Forecasts:
Cobblestones surf forecast from 16 Jul 2026:
- Best quality surf: Saturday 18 Jul, 8PM (local time) - 15ft (4.5m), 16s period, WSW swell with onshore winds.
- Most powerful swell: Saturday 18 Jul, 2PM (local time) - 18ft (5.5m), 16s period, WSW swell with 13,518 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 8PM (local time) - 15ft (4.5m), 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 8PM. The primary swell is predicted to be 4.5m 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. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Friday (Jul 17) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 18th Jul) | 15ft (4.5m) 16s |
| Best Surf | 8PM (Sat 18th Jul) | 15ft (4.5m) 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
Alright folks, Rusty here. Let’s have a look at what’s on the menu for the next couple of weeks.
We’re starting off with a bit of a rough patch, if I’m honest. The first couple of days are a write-off thanks to some nasty onshore winds and a huge, unsurfable swell. That’s the 18th and 19th of July – just forget those days. The wait is worth it, though, because once the wind cleans up, this spot comes alive.
The real action kicks off on the morning of Monday, the 20th of July. Cobblestones (reef) is looking at a solid 7ft swell from the SW, with a light offshore breeze from the north. The water is sitting about average for the time of year, nothing crazy. The combined energy is pumping at (1393) – that’s proper wave energy. This is a window for experienced surfers only, as the swell is over 5ft and the reef is no joke. Crowds are only an issue *sometimes*, so you might get a few sets to yourself.
Now, hold on, because the real standout is further out. The afternoon of Sunday, the 26th of July, is the one you circle on the calendar. We’ve got an 8ft SW groundswell rolling in with a 15-second period, and the wind switches to a light offshore breeze from the NE. Glassy conditions and clean lines. The combined energy is a beefy (3068). This is a top-tier call for advanced surfers. Stick to the reef, because a long-period swell like this will set up perfectly.
Don’t sleep on the 29th of July, either. The afternoon session delivers a 8ft SW swell with a very long 17-second period and light offshore winds. The energy is massive at (4457). Again, this is a reef setup, so it’ll handle that long period beautifully.
The last real gem is the morning of Thursday, the 30th of July. You’re looking at a 6ft SW swell with a 20-second period – that’s about as long as it gets – and the wind is completely glassy. Zero wind. The water will be like a mirror. The energy is still strong at (4735). This is a dream session for anyone who knows what they’re doing.
After that, into the first of August, there’s a bit of a drop-off with a cross-onshore wind creeping back in, so the window closes.
Rusty out.
Short Range ForecastModerate rain (total 16mm), heaviest on Fri night. Very mild (max 18°C on Fri morning, min 14°C on Sat morning). Winds increasing (light winds from the SSW on Thu night, strong winds from the WNW by Fri night). | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Mon night. Very mild (max 16°C on Mon night, min 12°C on Mon morning). Winds increasing (calm on Sun night, fresh winds from the S by Tue night). | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 12 | W 13 | WSW 12 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | SW 13 | SW 11 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 2036 | 1390 | 1151 | 6276 | 8176 | 12068 | 6855 | 4324 | 3198 | 3305 | 1141 | 2285 | 2223 | 3094 | 3305 | 4823 | 5411 | 4762 | 3805 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-on | on | on | cross-on | on | cross-on | glassy | cross-off | cross-on | cross-on | cross-on | on | cross-on | cross | cross-off | off |
High Tide | 10:42AM0.93m | 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 | |||||||||||||
 |  |  |  | |  | | | |  | | | | | | | | |  | |
 | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — |
 | 5:29 | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — |
mm | — | — | 1 | 8 | 2 | — | 1 | 3 | 1 | — | — | 2 | 3 | — | — | 2 | — | — | — |
Temp °C | 16 | 18 | 18 | 17 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 16 | 14 | 15 | 15 | 12 | 12 | 11 |
Feels °C | 13 | 12 | 12 | 11 | 7 | 7 | 8 | 10 | 10 | 12 | 11 | 12 | 11 | 8 | 9 | 8 | 5 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 12 | — | — | WSW 16 | WSW 15 | WSW 14 | WSW 13 | SW 13 | SW 11 | SW 14 | S 17 | SW 14 | — | SW 13 | SW 13 | SW 14 | SW 14 |
| kJ | 2036 | 1390 | 1151 | — | — | 12068 | 6855 | 4324 | 3198 | 3305 | 1141 | 2285 | 6 | 3094 | — | 4823 | 5411 | 4762 | 3805 |
Swell 2 Height (m) Direction Period (s) | NW 7 | NW 12 | WNW 12 | — | — | — | — | — | SSW 17 | — | SW 14 | S 18 | — | — | — | — | — | — | — |
| kJ | 143 | 6 | 14 | — | — | — | — | — | 112 | — | 865 | 6 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | WNW 12 | S 11 | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 14 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 7 | NNW 6 | W 13 | WSW 12 | — | — | — | — | — | — | — | SW 14 | — | SW 14 | — | — | — | — |
| kJ | — | 167 | 178 | 6276 | 8176 | — | — | — | — | — | — | — | 2223 | — | 3305 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 53 | 143 | 251 | 688 | 359 | 201 | 2 | 2 | 0 | 0 | 201 | 2 | 2 | 38 | 86 | 1 | 1 | 0 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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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