
Surf Forecasts:
Cobblestones surf forecast from 28 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: Saturday 1 Aug, 2PM (local time) - 16ft (5.0m), 16s period, SW swell with 12,030 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 8AM (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 Wednesday (Jul 29) at 8AM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 1.4m and 17s. 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 16s 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 0.8m 4s period and expected on Thursday (Jul 30) at 11AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 29th Jul) | 8ft (2.5m) 13s |
| Best Surf | 8PM (Sat 1st Aug) | 15ft (4.5m) 15s |
| Most Powerful | 2PM (Sat 1st Aug) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright, let’s break down the goods for Cobblestones. This is a proper advanced reef break, exposed to the open ocean, so when it lights up, you know about it. The water is sitting at 66°, which is a touch warmer than the norm for this time of year, so that’s a nice little bonus.
The first surfable window opens up on Wednesday, the 29th of July. We’ve got a solid 8ft SW swell rolling in with a 13-second period, and the wind is a gentle cross-off from the NE. The combined energy is pumping at 3068, so there’s plenty of grunt. The morning session is looking clean, but the call is marginal, so you’ll want to be on top of your tides. The afternoon improves a bit with the swell dropping to 7ft from the SSW, still 13 seconds, and the wind goes lighter. For the experienced crew, this is a good warm-up.
Thursday the 30th sees the swell hanging around 6ft to 6ft from the SW, with a longer period of 14 seconds. The wind is a bit of a mixed bag though – a moderate cross-off in the morning, shifting to a cross-shore in the afternoon, which brings a slight chop. The energy is still decent, mid-2000s, but it’s not the cleanest. Still, there’s a ride to be had.
Now, the standout for the first week is without a doubt Saturday, the 1st of August. The morning is a bit messy with a 13ft SW swell and cross-shore wind, but the afternoon is where it’s at. The swell jumps to 16ft from the SW, 15-second period, and the wind goes cross-off from the SSE, making it clean. The energy is massive at 11906. This is a proper big-wave session for experienced surfers only. You’ll be looking at a serious groundswell with long lulls between sets, but the shape will be there on this reef. This is the one to circle.
The rest of the first week has some good moments, like Sunday the 2nd where the swell drops to 10ft to 12ft but the wind goes glassy on the afternoon – that’s a rare treat and will be buttery smooth. The energy is still strong at 2851.
Looking further out, the second week gets a bit wild. There’s a massive run of swell starting from the 5th of August, with size consistently above 13ft and often hitting 16ft to 20ft. The combined energy is off the charts, regularly hitting four or five-digit numbers right up to 31584. The problem is the wind. For days on end, it’s a cross-on or onshore mess, with strong breezes making it choppy and blown out. The swell is too big for this break on many days, especially for the 5th afternoon, the 8th, the 10th, and the 12th and 13th. The 12th of August morning has a 20ft WSW swell, 17 seconds, with a light cross-off breeze from the SE, but even then, the forecast says it’s too big for the break. Only the most experienced chargers should even think about it. There’s a lot of power, but it’s going to be a washing machine for most.
So, the pick of the entire 16-day window is that Saturday afternoon, the 1st of August. Big, clean, powerful SW groundswell. After that, the 2nd afternoon with glassy conditions is a beauty for a slightly smaller day. The rest of the second week is mainly for the hardcore, and even then, the wind is the enemy.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri night. Very mild (max 18°C on Thu afternoon, min 11°C on Wed morning). Winds increasing (light winds from the NNW on Thu night, fresh winds from the SW by Fri night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Mon afternoon, min 8°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 13 | SSW 13 | SW 16 | 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 19 | SW 17 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
2454 | 1317 | 1871 | 1318 | 1463 | 3850 | 6086 | 8694 | 7456 | 6623 | 11906 | 6516 | 3677 | 2843 | 2293 | 1825 | 2453 | 7824 | 8028 | 4941 | 9171 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross | cross | cross | on | cross-on | cross | cross-off | off | cross-off | glassy | cross | on | cross-on | glassy | cross-on | on | on |
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 | 11:27AM0.59m | 2:06AM0.78m | |||||||||
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 | 9:04AM0.58m | 5:15PM0.53m | ||||||||||
7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | |
— | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | |
mm | — | — | — | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | 2 | 1 | 2 |
Temp °C | 13 | 14 | 14 | 16 | 18 | 17 | 18 | 18 | 16 | 13 | 14 | 13 | 11 | 14 | 13 | 15 | 16 | 16 | 16 | 16 | 15 |
Feels °C | 9 | 10 | 11 | 11 | 14 | 16 | 13 | 12 | 8 | 7 | 8 | 9 | 7 | 12 | 11 | 13 | 13 | 14 | 12 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SSW 13 | SW 16 | SW 14 | SW 14 | SW 17 | SW 16 | SW 16 | — | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 16 | SW 19 | SW 17 | SW 16 | SW 16 |
2454 | 1317 | 1871 | 1318 | 1463 | 3850 | 6086 | 8694 | — | 6623 | 11906 | 6516 | 3677 | 2843 | 2293 | 1825 | 2453 | 7824 | 8028 | 4941 | 9171 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 16 | S 10 | SW 20 | SW 19 | SSE 9 | — | — | — | SW 18 | — | — | — | SE 14 | NNE 5 | SW 24 | SW 22 | SW 14 | — | — | — |
614 | 989 | 125 | 552 | 738 | 16 | — | — | — | 1077 | — | — | — | 8 | 5 | 87 | 471 | 2032 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | NNE 5 | S 10 | N 5 | — | — | — | — | — | — | — | — | — | SE 13 | SE 13 | SSE 11 | — | — | — | — |
— | — | 8 | 67 | 17 | — | — | — | — | — | — | — | — | — | 7 | 7 | 13 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNE 4 | N 5 | N 4 | — | — | NW 4 | WNW 6 | SW 15 | — | — | — | — | NNE 5 | — | — | — | — | WSW 5 | WSW 7 | — |
— | 6 | 8 | 22 | — | — | 22 | 180 | 7456 | — | — | — | — | 8 | — | — | — | — | 39 | 352 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 0 | 0 | 44 | 143 | 53 | 251 | 251 | 89 | 20 | 1 | 0 | 10 | 0 | 0 | 2 | 1 | 0 | 201 | 359 | 251 |
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.










