Surf Forecasts:
Cobblestones surf forecast from 7 Aug 2026:
- Best quality surf: Saturday 8 Aug, 8AM (local time) - 21ft (6.5m), 14s period, SW swell with onshore winds.
- Most powerful swell: Saturday 8 Aug, 5PM (local time) - 25ft (7.5m), 16s period, SW swell with 26,930 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 8AM (local time) - 21ft (6.5m), 14s 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 08) at 8AM. The primary swell is predicted to be 6.5m and 14s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Cobblestones in the next 16 days are 7.5m 16s and forecast to arrive on Saturday (Aug 08) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 8th Aug) | 21ft (6.5m) 14s |
| Best Surf | 8AM (Sat 8th Aug) | 21ft (6.5m) 14s |
| Most Powerful | 5PM (Sat 8th Aug) | 25ft (7.5m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Cobblestones. This is a reef break that needs a specific approach, and we’ve got a long window ahead.
Right off the bat, the first week is a write-off. The swell is absolutely pumping, but it’s way too much for this spot. We’re talking 23-foot to 25-foot of SW swell on Saturday the 8th, with howling 28 to 31 mph cross-onshore winds. The wave energy is bonkers – (21895) on Saturday morning, (26930) in the afternoon. This isn’t surfable for anyone; it’s a washing machine. This continues through Sunday, Monday, and Tuesday with massive swell and strong onshore winds. The water temp is sitting at 68°, which is much warmer than normal for this time of year, but you won’t feel it through the wind chill.
The real standout, and the only window I’d get excited about, is Friday the 14th. That morning, we’ve got a clean 12-foot swell from the SW, with a long period of 16 seconds. The wind is a light 6 mph cross-offshore from the NNE. That’s prime. The energy is still strong at (6461), but the conditions are clean. This is expert territory with that size and that long period, so it’s for the experienced crew only. The afternoon holds up too, with an 12-foot swell and a light cross-off from the North, though the energy drops a bit (4763). After that, the quality drops back into marginal territory.
The following week is a mixed bag. Saturday the 15th and Sunday the 16th offer some clean but smaller waves in the 10-foot to 12-foot range, with light offshore winds. Then it gets blown out again from Monday the 17th on, with rain, strong winds, and more oversized swell, peaking at 20-foot on the 23rd with fresh cross-onshore winds. This is a long stretch of poor quality.
So, for the whole 16 days, there’s really only one standout: Friday the 14th. It’s the only day where the stars align for a clean, powerful session at Cobblestones. Be patient, wait for that Friday window, and you’ll be rewarded.
Rusty out.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sat morning. Very mild (max 16°C on Sun afternoon, min 10°C on Mon morning). Winds decreasing (near gales from the SW on Sat morning, moderate winds from the SW by Sun morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Tue night, min 13°C on Tue morning). Winds decreasing (fresh winds from the SSW on Tue morning, light winds from the ESE by Thu night). | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 14 | SW 11 | SW 13 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21895 | 26930 | 21209 | 12517 | 9064 | 5153 | 6615 | 11340 | 23814 | 22256 | 17709 | 12907 | 10007 | 8754 | 7063 | 7495 | 11139 | 9890 | 6461 | 4763 | 3810 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | off | cross-off | cross-off | off |
High Tide | 6:51AM1.00m | 7:46AM1.03m | 8:35AM1.02m | 9:17AM0.98m | 9:55AM0.92m | 10:26AM0.82m | 00:30AM0.56m | ||||||||||||||
Low Tide | 3:46PM0.22m | 4:24PM0.20m | 5:00PM0.20m | 5:34PM0.24m | 6:03PM0.29m | 6:23PM0.35m | 6:25PM0.42m | 3:53AM0.53m | |||||||||||||
 | |  |  |  |  | | |  | |  |  | | | | |  |  | | | | |
 | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — |
mm | 4 | 1 | — | — | 1 | 3 | 4 | 3 | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 13 | 14 | 15 | 16 | 16 | 15 | 10 | 11 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 16 | 15 |
Feels °C | -1 | 2 | 8 | 9 | 11 | 8 | 4 | -2 | 0 | 6 | 8 | 11 | 12 | 12 | 13 | 13 | 12 | 13 | 12 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 16 | SW 16 | SW 16 | SW 14 | — | — | — | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 |
| kJ | — | — | 21209 | 12517 | 9064 | 5153 | — | — | — | 22256 | 17709 | 12907 | 10007 | 8754 | 7063 | 7495 | 11139 | 9890 | 6461 | 4763 | 3810 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 21 | — | — | — | — | — | — | — | — | — | — | SW 20 | — | — | — | — | — | — |
| kJ | — | — | — | 548 | — | — | — | — | — | — | — | — | — | — | 312 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 15 | SW 16 | — | — | — | W 7 | SW 11 | SW 13 | SW 16 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 21895 | 26930 | — | — | — | 284 | 6615 | 11340 | 23814 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2004 | 1900 | 234 | 2 | 325 | 251 | 875 | 2684 | 2017 | 221 | 593 | 2 | 86 | 38 | 2 | 2 | 2 | 0 | 0 | 0 | 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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