Surf Forecasts:
Cobblestones surf forecast from 28 Jul 2026:
- Best quality surf: Sunday 2 Aug, 2AM (local time) - 13ft (4.0m), 14s period, SW swell with offshore winds.
- Most powerful swell: Saturday 1 Aug, 2PM (local time) - 16ft (5.0m), 15s period, SW swell with 11,292 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 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 29) at 2AM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 1.3m and 18s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cobblestones in the next 16 days are 5.0m 15s and forecast to arrive on Saturday (Aug 01) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Tuesday (Aug 04) at 2PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 29th Jul) | 10ft (3.0m) 13s |
| Best Surf | 2AM (Sun 2nd Aug) | 13ft (4.0m) 14s |
| Most Powerful | 2PM (Sat 1st Aug) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down the waves for Cobblestones.
We've got a solid run of south-west groundswell coming in for this heavy reef. The water's about average temp for this time of year. This spot is for the experienced crew only.
Wednesday the 29th starts with a 8ft SW swell, period 13 seconds. The wind is a cross-off from the NE, and it's clean. The combined energy is strong (2924). There's plenty of power. By the afternoon, the swell drops a bit to 7ft, the wind gets lighter, and it's still clean. That's a good window.
Thursday the 30th, the swell is 6ft, but the morning gets a stiff N wind at 16 mph, making it messy. The afternoon turns cross-on. Not the best call.
Friday the 31st is a bust. The wind cranks onshore, and you've got a 12ft to 13ft swell, but it's all blown out. Skip it.
Now, Saturday the 1st of August is a standout. The swell hits 16ft from the SW, period 15 seconds. The wind is a clean cross-off from the SE all day, with energy readings of 10073 and 10088. That's a massive, powerful groundswell. This is for experts only. Anything over 8ft on this reef is serious business.
Sunday the 2nd is a beauty. The swell holds at 10ft, but the wind turns offshore from the NE in the morning, and then goes glassy in the afternoon. Zero wind. The energy is still strong (3461 and 2707). The waves will be clean and perfect for an advanced session. The glassy afternoon will be a memory maker.
Monday the 3rd keeps it going with a 7ft to 8ft SW swell, 14-16 second period, and light cross-off winds. The energy is moderate to strong (1990-3066). It's a touch smaller, more accessible for a strong intermediate, but still a reef.
Tuesday the 4th is huge again. Swell hits 12ft, period 17 seconds, with a clean offshore wind from the NE in the morning. The energy is exceptional (6787). This is another all-time session for the experts. The afternoon gets a bit cross-shore.
From Wednesday the 5th, the wind gets messy with onshore conditions. The swell stays big, but the quality drops. By the 8th of August, the swell is predicted to be too big for the break, with a 21ft swell and near gale winds. That's a no-go. The following week is full of onshore gales and rain. The swell is there, but the wind is brutal.
The best bets are the morning of Saturday the 1st of August, and the glassy afternoon on Sunday the 2nd. Those are the ones you circle. It's a reef, so crowds are possible, but the size will keep the numbers down.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri afternoon. Very mild (max 18°C on Thu afternoon, min 11°C on Tue night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the NW by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the SW on Fri night, calm by Sun afternoon). | ||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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 13 | SW 13 | SSW 13 | SW 16 | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 2722 | 2310 | 1317 | 1871 | 1318 | 1355 | 3621 | 5827 | 7359 | 7976 | 10073 | 10088 | 5487 | 3461 | 2699 | 2356 | 1983 | 2758 | 2597 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-on | cross | cross-on | on | cross-on | cross-off | cross-off | off | off | glassy | off | cross-off | cross-off | cross-off |
High Tide | 8:45AM1.06m | 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 | |||||||||
Low Tide | 5:50PM0.35m | 6:06PM0.37m | 6:21PM0.40m | 2:31AM0.62m | 6:33PM0.44m | 4:26AM0.61m | 6:39PM0.48m | 6:05AM0.60m | 6:25PM0.52m | ||||||||||
 |  |  | | |  |  | |  | | | | | | | | | |  | |
 | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — |
 | 5:37 | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — |
mm | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 13 | 13 | 15 | 14 | 17 | 18 | 17 | 18 | 18 | 16 | 13 | 14 | 12 | 11 | 14 | 13 | 14 | 17 | 19 |
Feels °C | 10 | 9 | 11 | 11 | 12 | 14 | 15 | 14 | 12 | 9 | 8 | 9 | 6 | 6 | 11 | 10 | 11 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SSW 13 | SW 16 | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | — | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 16 | SW 15 |
| kJ | 2722 | 2310 | 1317 | 1871 | 1318 | 1355 | 3621 | 5827 | 7359 | — | 10073 | 10088 | 5487 | 3461 | 2699 | 2356 | 1983 | 2758 | 2597 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 16 | S 10 | SW 20 | SW 19 | SSE 9 | — | — | — | — | — | SW 14 | — | SE 14 | N 5 | SE 13 | WSW 22 | SW 19 |
| kJ | 1042 | 614 | 989 | 125 | 552 | 738 | 16 | — | — | — | — | — | 2448 | — | 8 | 4 | 7 | 308 | 2073 |
Swell 3 Height (m) Direction Period (s) | — | — | — | NNE 5 | S 9 | N 5 | — | — | — | — | — | — | — | — | — | SE 13 | — | — | — |
| kJ | — | — | — | 8 | 61 | 18 | — | — | — | — | — | — | — | — | — | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NNE 4 | N 5 | N 5 | — | N 5 | NW 4 | W 6 | SW 15 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 6 | 8 | 27 | — | 12 | 22 | 183 | 7976 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 3 | 0 | 0 | 44 | 159 | 53 | 251 | 359 | 89 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 44 |
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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