
Surf Forecasts:
Cobblestones surf forecast from 1 Aug 2026:
- Best quality surf: Saturday 8 Aug, 11AM (local time) - 25ft (7.5m), 13s period, WSW swell with cross-onshore winds.
- Most powerful swell: Saturday 8 Aug, 8PM (local time) - 30ft (9.0m), 16s period, WSW swell with 37,891 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 11PM (local time) - 15ft (4.5m), 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 01) at 11PM. The primary swell is predicted to be 4.5m and 14s 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 9.0m 16s and forecast to arrive on Saturday (Aug 08) 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 2.4m 7s period and expected on Thursday (Aug 06) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 1st Aug) | 15ft (4.5m) 14s |
| Best Surf | 11AM (Sat 8th Aug) | 25ft (7.5m) 13s |
| Most Powerful | 8PM (Sat 8th Aug) | 30ft (9.0m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about Cobblestones.
We’ve got a solid run of swell on the way, but the wind is going to be a major player. The water is sitting at 67°F, which is much warmer than normal for this time of year – a solid 4°F above average, so you might not need the thickest wetsuit.
The first standout is Sunday the 2nd. It’s not the biggest, but it’s the cleanest window we’ve got. Sunday morning delivers a 12ft SW swell with a 13-second period, combined energy of 3936, and a light NE cross-off breeze of 12 mph. Rips clean lines. The afternoon holds a 10ft SW swell, 13-second period, 4148 energy, and a glassy NNE light breeze of 6 mph – still cross-off. That’s your best bet for quality, manageable waves without the chop.
Saturday the 1st has a 16ft SW swell with 15-second period and massive energy of 10621, but it’s a cross-shore breeze with a cross-chop, making it marginal. That’s a lot of water moving but not clean.
From Monday the 3rd onwards, things get tricky. The swell stays up – 6ft to 16ft SW – but the wind turns onshore or cross-onshore, and the chop gets lumpy. By Tuesday the 4th, Wednesday the 5th, and Thursday the 6th, the combination of big swell (13ft to 16ft) and moderate to fresh cross-onshore wind makes for poor surf.
Then we hit a big swell pulse from the 8th to the 10th of August. Saturday the 8th has a 25ft to 28ft WSW swell with periods of 13 to 15 seconds, and energy readings of 17435 to 30464 – that’s massive. It’s too big for this break, even if the tide is right. Sunday the 9th holds 21ft SW swell, still too big. Monday the 10th, 16ft to 18ft SW with strong cross-shore wind of 28 mph – blown out.
The 11th through the 14th stay big – 15ft to 16ft SW – with periods from 15 to 20 seconds, combined energy of 9884 to 19660, and onshore or cross-onshore winds. The 13th and 14th still have too much size for safe paddle surfing. The 15th and 16th drop to 8ft to 10ft SW, but the wind is still onshore, and conditions are choppy.
Overall, the only real window for a clean, surfable wave is Sunday the 2nd. After that, it’s either too big, too windy, or both. If you’re chasing big, unruly water, it’s there – but for paddle surfing, it’s a tough call. This setup might be more interesting for kite surfing than paddle surfing on those bigger, wind-affected days.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Very mild (max 19°C on Mon afternoon, min 10°C on Sun morning). Winds increasing (light winds from the E on Sun night, strong winds from the NW by Mon night). | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Thu night. Very mild (max 17°C on Wed morning, min 14°C on Tue afternoon). Mainly fresh winds. | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 16 | SW 15 | SW 17 | WSW 16 | WSW 16 | SW 16 | WSW 16 | WSW 16 | WSW 16 | SW 16 | SW 15 | WSW 13 | WSW 14 | WSW 11 |
Wave Graph | ||||||||||||||||||||
10621 | 6335 | 3936 | 2923 | 2458 | 1506 | 1664 | 2027 | 9219 | 8525 | 4983 | 11669 | 11141 | 11059 | 8439 | 7344 | 6236 | 11377 | 9139 | 6649 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | cross-off | off | cross-off | cross | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | on | on | on |
High Tide | 1:04AM0.64m | 11:12AM0.81m | 1:08AM0.68m | 11:43AM0.70m | 1:29AM0.72m | 11:27AM0.59m | 2:06AM0.78m | 3:03AM0.84m | 4:24AM0.90m | |||||||||||
Low Tide | 6:33PM0.44m | 4:26AM0.61m | 6:39PM0.48m | 6:05AM0.60m | 6:25PM0.52m | 9:04AM0.58m | 5:15PM0.53m | 2:30PM0.46m | 2:35PM0.36m | 3:09PM0.28m | ||||||||||
— | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | |
5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | |
mm | — | — | — | — | — | — | — | 13 | — | — | 1 | 2 | 2 | 4 | — | — | 8 | 4 | 2 | 8 |
Temp °C | 14 | 14 | 11 | 13 | 12 | 16 | 19 | 15 | 14 | 15 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 14 | 14 |
Feels °C | 9 | 10 | 6 | 9 | 9 | 11 | 14 | 8 | 8 | 10 | 11 | 14 | 13 | 12 | 11 | 11 | 11 | 10 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 16 | SW 15 | SW 17 | WSW 16 | WSW 16 | SW 16 | WSW 16 | WSW 16 | WSW 16 | SW 16 | SW 15 | — | WSW 14 | — |
10621 | 6335 | 3936 | 2923 | 2458 | 1506 | 1664 | 2027 | 9219 | 8525 | 4983 | 11669 | 11141 | 11059 | 8439 | 7344 | 6236 | — | 9139 | — | |
Swell 2 Height (m) Direction Period (s) | — | WSW 15 | — | SW 16 | SE 13 | S 10 | SE 13 | SW 20 | — | — | — | — | — | — | — | — | — | — | — | — |
— | 897 | — | 1225 | 7 | 65 | 7 | 918 | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | N 5 | NNW 5 | W 7 | WNW 7 | — | — | — | — | — | NNW 5 | NW 6 | WNW 8 | WSW 13 | — | WSW 11 |
— | — | — | — | — | 43 | 92 | 338 | 143 | — | — | — | — | — | 93 | 138 | 1325 | 11377 | — | 6649 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 20 | 0 | 2 | 0 | 0 | 53 | 53 | 1689 | 359 | 251 | 201 | 201 | 201 | 86 | 172 | 201 | 220 | 1340 | 1689 | 2169 |
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.











