
Surf Forecasts:
Cobblestones surf forecast from 30 Jul 2026:
- Best quality surf: Saturday 1 Aug, 8PM (local time) - 15ft (4.5m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 5AM (local time) - 15ft (4.5m), 16s period, SW swell with 10,010 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 8PM (local time) - 15ft (4.5m), 15s 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 Saturday (Aug 01) at 8PM. The primary swell is predicted to be 4.5m and 15s period. 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 4.5m 16s and forecast to arrive on Wednesday (Aug 05) 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 0.6m 4s period and expected on Thursday (Jul 30) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 1st Aug) | 15ft (4.5m) 15s |
| Best Surf | 8PM (Sat 1st Aug) | 15ft (4.5m) 15s |
| Most Powerful | 5AM (Wed 5th Aug) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright folks, Rusty here, looking at the charts for Cobblestones. We've got a solid 16-day window ahead, but it's a tale of two extremes. The water’s sitting at 66° which is a touch warmer than normal for this time of year, so that's a nice little bonus.
First up, Thursday the 30th. It’s a bit of a slow starter. We're seeing a 6ft swell rolling in from the SW with a 14-second period, giving us moderate wave energy (1931). The wind is a light cross-off in the morning, keeping things clean, but the afternoon gets a bit more cross. It’s surfable, but nothing to write home about.
Friday the 31st, the swell really starts to jack up. We're looking at 12ft to 13ft SW groundswell with a long 16-second period. The energy is ramping up big time (6742). The problem? The wind swings onshore and gets fresh, trashing the quality. This is one for the experts only, and even then, it’s going to be a bumpy, blown-out mess. Honestly, with that much wind and that size on a reef, it might be more of a kite-surfing show than a paddle session.
Saturday the 1st of August keeps the big swell going – 13ft to 15ft from the SW – but the wind is still a problem. Cross-onshore and choppy. The afternoon looks a little better with a gentler breeze, but the raw power (8602) and onshore component make it a tough ask.
Now, here's where it gets interesting. Sunday the 2nd of August is the standout of this first week. The swell is still a solid 8ft to 12ft from the SW, but the key is the wind. On Sunday afternoon, it goes glassy. Absolutely dead calm. For an advanced reef break like this, glassy conditions on an 8ft, 13-second SW swell is as good as it gets. The combined energy is strong (2993), but that glassy surface will make it a dream. This is the window you wait for.
The start of the next week (Monday 3rd to Wednesday 5th) sees the swell staying solid between 7ft and 15ft. The wind stays manageable, mostly light and cross, which is a major positive. The real standout in this stretch is Wednesday the 5th of August. We've got a 15ft SW swell with a 16-second period, a massive 8880 combined energy, and light cross-shore winds. The period is long, so expect powerful, well-shaped lines with decent gaps between sets. The morning session looks perfect.
After that, we hit a rough patch. From Thursday the 6th through to Sunday the 9th, the swell stays big (10ft to 16ft) but the wind turns nasty – strong cross-onshore and onshore, and we’ve got rain moving in. The conditions will be poor for surfing. The 16ft, 14-second swell on the 8th packs a staggering 10786 energy, but it’s a total mess.
The second week is a bit more of a mixed bag. The swell drops back to the 8ft to 12ft range. The mornings on the 11th and 12th of August are worth a look. The 11th has a clean 10ft SW swell with offshore winds. The real bright spot is Wednesday the 12th of August. A 12ft swell from the WSW with a very long 18-second period, light cross-shore winds, and 8642 combined energy. That’s a serious groundswell with perfect shape potential for a reef like Cobblestones. It’s over a week out, so keep an eye on it, but it looks promising.
The last few days of the window from the 13th to the 14th are just okay – smaller 8ft to 12ft swell with onshore winds, nothing special.
So, to boil it down: if you want clean, surfable power, Sunday the 2nd of August is your glassy, smaller-window call. For the big, raw power and perfect conditions, Wednesday the 5th of August is your jam. And keep an eye on that Wednesday the 12th of August for a potential second-week sleeper.
Stay safe out there.
- Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Fri afternoon. Very mild (max 19°C on Fri morning, min 10°C on Sat night). Winds increasing (light winds from the NNW on Thu night, fresh winds from the WNW by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Mon afternoon, min 9°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 14 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 16 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
1318 | 1355 | 3850 | 6683 | 7615 | 7046 | 5809 | 8602 | 5778 | 3560 | 2180 | 2391 | 1941 | 2888 | 3822 | 8543 | 6100 | 8690 | 8880 | 7082 | 6339 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-on | on | cross-on | cross-on | cross | off | cross-off | glassy | cross-off | cross | cross-on | cross | on | cross-on | on | cross | cross-on | off |
High Tide | 9:21AM1.03m | 9:58AM0.98m | 1:42AM0.62m | 10:35AM0.91m | 1:04AM0.64m | 11:12AM0.81m | 1:08AM0.68m | 11:43AM0.70m | 1:29AM0.72m | 11:27AM0.59m | 2:06AM0.78m | 3:03AM0.84m | |||||||||
Low Tide | 6:06PM0.37m | 6:21PM0.40m | 2:31AM0.62m | 6:33PM0.44m | 4:26AM0.61m | 6:39PM0.48m | 6:05AM0.60m | 6:25PM0.52m | 9:04AM0.58m | 5:15PM0.53m | 2:30PM0.46m | ||||||||||
7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | |
— | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | |
mm | — | — | — | — | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 17 | 19 | 18 | 16 | 13 | 13 | 13 | 11 | 13 | 13 | 14 | 16 | 15 | 16 | 15 | 15 | 15 | 16 | 15 |
Feels °C | 12 | 16 | 16 | 14 | 11 | 8 | 7 | 8 | 9 | 6 | 9 | 10 | 12 | 12 | 12 | 12 | 11 | 11 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 16 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 |
1318 | 1355 | 3850 | 6683 | 7615 | 7046 | 5809 | 8602 | 5778 | 3560 | 2180 | 2391 | 1941 | 2888 | 3822 | 8543 | 6100 | 8690 | 8880 | 7082 | 6339 | |
Swell 2 Height (m) Direction Period (s) | SW 20 | SW 19 | SSE 9 | — | — | — | — | — | WSW 14 | — | SW 17 | SE 14 | SW 24 | SW 22 | SW 20 | — | — | — | — | — | — |
552 | 738 | 16 | — | — | — | — | — | 1973 | — | 805 | 7 | 22 | 233 | 2207 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | — | — | — | — | — | — | — | — | SE 14 | — | SE 13 | — | — | — | — | — | — | — | — |
61 | 43 | — | — | — | — | — | — | — | — | 8 | — | 7 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | — | WNW 5 | W 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
9 | 9 | — | 59 | 316 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 7 | 53 | 251 | 251 | 89 | 20 | 1 | 0 | 16 | 0 | 0 | 1 | 20 | 0 | 2 | 2 | 2 | 39 | 2 | 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.










