
Surf Forecasts:
Cobblestones surf forecast from 20 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 5AM (local time) - 10ft (3.0m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 8PM (local time) - 11ft (3.5m), 15s period, SW swell with 5,622 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 2AM (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 Wednesday (Jul 22) at 2AM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-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 Monday (Jul 27) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Friday (Jul 24) at 2PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 22nd Jul) | 10ft (3.0m) 13s |
| Best Surf | 5AM (Wed 22nd Jul) | 10ft (3.0m) 13s |
| Most Powerful | 8PM (Mon 27th Jul) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what Cobblestones has in store for the next couple of weeks. We’re looking at an advanced reef break that’s exposed to the open ocean swell, and with the water temp sitting at 67°, that’s about a touch warmer than normal for this time of year, so you can leave the thickest rubber at home.
The next week is a proper mixed bag. We don’t have any surf on offer right now, so the first real chance to paddle out will be Tuesday the 22nd of July. That Wednesday morning, the 22nd, is the standout from the early part of the forecast. We’ve got a solid 12 ft SW swell rolling in with a period of 14 seconds, and the wind is a light Easterly that’s cross-offshore. That combo is setting up some clean, shapey lines on the reef. It’s big enough that you’ll want some experience under your belt, but the energy is strong, with combined swell energy of 4735 (moderate to strong). Thursday the 23rd also looks good with offshore NE winds in the morning, cleaning up a 8 ft SW swell.
We hit a bit of a lull in size over the weekend of the 24th and 25th, with swell dropping to around 5-6 ft. The wind stays cross-offshore, so it’s still rideable, but it lacks the punch of the mid-week days.
Then things turn nasty. From Sunday the 26th through Monday the 27th, a strong SW swell pushes in with heights from 10 ft to 12 ft, but the wind goes onshore and howling. It’s a windy, choppy mess, with combined energy values over 5000 (strong to very strong), but you wouldn’t want to be out there. This same poor pattern with onshore wind and rain showers continues into the start of the week of the 28th and 29th, making it unsurfable.
Now, if you can wait, the second week looks absolutely banger. The first week of August is where the magic happens. Sunday the 2nd of August shows an exceptional morning with a 13 ft WSW groundswell, a very long period of 16 seconds, and glassy, clean conditions with a light NNE cross-offshore breeze. The combined swell energy rockets up to 7605, telling you there’s a heap of power in the water. This is expert territory for sure. That afternoon the swell jumps to 16 ft with a 19-second period (very long period), and while it’s clean, it’s simply too big for most folks. Monday the 3rd of August holds a 13 ft swell with a 17-second period and a clean offshore NE wind, keeping the quality sky-high for the experts.
There’s a downside again on the 4th and 5th of August as strong southerly winds ruin the quality of another big 10-12 ft swell, but if you time it right, that Sunday to Monday window in early August is as good as it gets.
So, for the best on offer: lock in Wednesday the 22nd of July for a solid session in the 12 ft SW swell with clean winds snaking off the reef. But the true standout, the one to circle on your calendar, is the morning of Sunday the 2nd of August. The combination of massive, long-period groundswell and absolute glass is a rare treat for those who can handle it. Crowds are possible at a spot like this when it’s pumping, so get there early.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed afternoon, min 12°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sun afternoon. Very mild (max 18°C on Sat night, min 12°C on Fri morning). Winds increasing (light winds from the NE on Fri night, strong winds from the NW by Sun afternoon). | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
AM | PM | 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) | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
2775 | 2114 | 2574 | 4735 | 4932 | 3810 | 2886 | 2125 | 1346 | 798 | 833 | 1144 | 1028 | 486 | 607 | 3580 | 4135 | 3199 | 2931 | 5318 | 4631 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross | off | off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 4:03AM0.78m | 4:52AM0.84m | 5:39AM0.90m | 6:21AM0.96m | 6:59AM1.00m | 7:34AM1.04m | |||||||||||||||
Low Tide | 4:28PM0.44m | 4:18PM0.38m | 4:25PM0.34m | 4:37PM0.32m | 4:52PM0.31m | 5:06PM0.31m | 5:20PM0.32m | ||||||||||||||
7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | |
— | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | — | 2 | 1 |
Temp °C | 15 | 14 | 14 | 13 | 16 | 14 | 12 | 14 | 14 | 13 | 15 | 14 | 13 | 15 | 18 | 18 | 18 | 16 | 15 | 15 | 15 |
Feels °C | 10 | 9 | 10 | 10 | 13 | 10 | 8 | 11 | 12 | 9 | 12 | 12 | 9 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SSW 15 |
2775 | 2114 | 2574 | 4735 | 4932 | 3810 | 2886 | 2125 | 1346 | 798 | 833 | 1144 | 1028 | 486 | 607 | 3580 | 4135 | 3199 | 2931 | 5318 | 4631 | |
Swell 2 Height (m) Direction Period (s) | S 17 | WSW 18 | S 16 | — | — | — | W 19 | WSW 18 | WSW 17 | WSW 16 | W 16 | SW 19 | SW 17 | WSW 11 | SW 15 | — | — | — | — | — | SW 24 |
6 | 31 | 5 | — | — | — | 7 | 31 | 59 | 86 | 124 | 14 | 103 | 281 | 453 | — | — | — | — | — | 22 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | NNW 5 | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 219 | 8 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 5 | N 4 | N 5 | N 6 | NNW 5 | NW 5 | WSW 8 | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 5 | 17 | 35 | 30 | 40 | 55 | 306 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 53 | 44 | 53 | 1689 | 474 | 201 | 251 | 201 | 251 |
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.










