
Surf Forecasts:
Cobblestones surf forecast from 2 Aug 2026:
- Best quality surf: Sunday 2 Aug, 8PM (local time) - 8ft (2.5m), 13s period, SW swell with offshore winds.
- Most powerful swell: Saturday 8 Aug, 8AM (local time) - 18ft (5.5m), 16s period, SW swell with 14,815 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 8PM (local time) - 8ft (2.5m), 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 Sunday (Aug 02) at 8PM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.9m and 16s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cobblestones in the next 16 days are 5.5m 16s and forecast to arrive on Saturday (Aug 08) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Monday (Aug 03) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 2nd Aug) | 8ft (2.5m) 13s |
| Best Surf | 8PM (Sun 2nd Aug) | 8ft (2.5m) 13s |
| Most Powerful | 8AM (Sat 8th Aug) | 18ft (5.5m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
Cobblestones is the only break on the radar for the whole 16-day run, and it’s a consistent spot. The water is sitting at 68°F, which is much warmer than usual for this time of year – a solid 4°F above the norm. That’s a nice bonus if you’re paddling out.
The first surf worth paddling for hits Sunday afternoon, August 2nd. We’ve got a solid 10 ft SW swell, period around 13 seconds, and a light NNE breeze keeping things cross-off and clean. The combined energy is pumping at 4156, so there’s plenty of power in the water. This is an advanced reef break, so don’t take it lightly. The swell direction is right on the money for what this spot likes.
Monday morning, August 3rd, the swell drops to 6 ft with a very long 15-second period, but a moderate NNE breeze at 25 km/h still gives us cross-off winds. The energy is moderate at 1455. The afternoon is similar, but the wind shifts to N, still cross-off and clean. Worth a session if you’re around.
The middle of the week, from Tuesday the 4th through Thursday the 7th, gets messy. Strong onshore W winds, big 13 ft to 16 ft SW swells, and dropping quality. The energy is huge – up to 11256 on Wednesday morning – but the waves are choppy and cross-onshore. This is more interesting for kite surfing than paddle surfing. Not recommended for a clean wave.
We finally get a break in the wind on Sunday morning, August 9th, but it’s onshore again with WSW winds. The swell is 13 ft, energy at 6743, but the conditions are marginal at best. The afternoon is similar.
Now, here’s the standout. Monday, August 10th, things start to clean up. Morning has a 13 ft SW swell with a very long 18-second period, and a fresh ESE breeze at 30 km/h gives us cross-off, clean conditions. The energy is 9594. This is a powerful, clean groundswell. The afternoon is also clean with a 13 ft swell and SE cross-off winds. Excellent.
The best of the lot is Tuesday, August 11th. Morning brings a 26 ft SW swell with a 17-second period, and a light ENE breeze at 10 km/h blowing directly offshore. The energy is massive at 67581. The wave comment says it’s too big for this break, and at 26 ft, that’s no joke. This is a solid, expert-only situation. The afternoon is similar with 28 ft, but the wind goes cross-on. Still, the morning window is a monster.
Wednesday, August 12th, is also a top pick. Morning has an 18 ft SSW swell, 13-second period, and glassy conditions with an E breeze at 5 km/h. The energy is 14657, and the wave comment says it’s exceptional for experts. That’s a clean, powerful groundswell. The afternoon drops to 10 ft but still has a light cross-on wind.
The rest of the second week keeps pumping. Thursday 13th has a clean 8 ft swell in the morning, but it’s small. Friday 14th morning has a 13 ft SW swell with a clean cross-off N breeze. Saturday 15th morning has a 6 ft SW swell with a very long 19-second period and clean cross-off SE winds. Sunday 16th morning has a clean 13 ft SW swell with offshore NE winds. Monday 17th morning has an 12 ft WSW swell, 15-second period, and a slight air, clean conditions.
The second week is a consistent run of solid, clean surf, but the standout is Tuesday August 11th for the truly big, clean, offshore session. Keep your eyes on the forecast, because that one is a promise but a bit far out. The rest of the week is a solid bet for experienced surfers.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Very mild (max 18°C on Mon afternoon, min 10°C on Sun night). Winds increasing (light winds from the ENE on Sun night, fresh winds from the W by Mon night). | Days 5-7 Weather SummaryModerate rain (total 16mm), heaviest on Thu night. Very mild (max 17°C on Wed afternoon, min 12°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 13 | SW 14 | SW 15 | SW 16 | SW 15 | WSW 17 | WSW 16 | WSW 16 | SW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | SW 15 | WSW 15 | SW 15 | SW 16 | SW 16 | SW 15 |
Wave Graph | ||||||||||||||||||||
2923 | 2458 | 1380 | 1664 | 1801 | 8839 | 7510 | 5492 | 11256 | 11282 | 11197 | 8422 | 7873 | 8956 | 8369 | 9175 | 12965 | 14045 | 12399 | 9533 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | on | on | on | cross-on | cross-on | cross-on | on |
High Tide | 1:08AM0.68m | 11:43AM0.70m | 1:29AM0.72m | 11:27AM0.59m | 2:06AM0.78m | 3:03AM0.84m | 4:24AM0.90m | 5:45AM0.95m | ||||||||||||
Low Tide | 6:39PM0.48m | 6:05AM0.60m | 6:25PM0.52m | 9:04AM0.58m | 5:15PM0.53m | 2:30PM0.46m | 2:35PM0.36m | 3:09PM0.28m | 3:46PM0.22m | |||||||||||
— | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | |
5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | |
mm | — | — | — | — | 13 | — | — | 1 | 1 | 1 | 4 | — | — | 8 | 2 | — | 1 | — | — | — |
Temp °C | 13 | 12 | 15 | 18 | 16 | 14 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 15 | 14 | 15 | 13 | 14 | 14 |
Feels °C | 8 | 9 | 11 | 14 | 9 | 9 | 10 | 11 | 12 | 14 | 14 | 12 | 11 | 13 | 10 | 7 | 8 | 7 | 9 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 14 | SW 15 | SW 16 | SW 15 | WSW 17 | WSW 16 | WSW 16 | SW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | SW 15 | — | SW 15 | SW 16 | SW 16 | SW 15 |
2923 | 2458 | 1380 | 1664 | 1801 | 8839 | 7510 | 5492 | 11256 | 11282 | 11197 | 8422 | 7873 | 8956 | 8369 | — | 12965 | 14045 | 12399 | 9533 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SE 13 | S 8 | SE 13 | SW 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 26 | SW 24 |
1225 | 7 | 68 | 7 | 1145 | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | 142 | |
Swell 3 Height (m) Direction Period (s) | SE 14 | — | SE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8 | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | NNE 4 | N 5 | W 7 | — | — | — | — | — | — | NW 5 | NW 6 | — | — | WSW 15 | — | — | — | — |
— | — | 31 | 44 | 371 | — | — | — | — | — | — | 102 | 184 | — | — | 9175 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 143 | 53 | 512 | 630 | 569 | 201 | 2 | 201 | 86 | 172 | 201 | 251 | 89 | 2004 | 688 | 2 | 20 | 2 |
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.











