
Surf Forecasts:
Cobblestones surf forecast from 20 Jul 2026:
- Best quality surf: Monday 27 Jul, 8AM (local time) - 16ft (5.0m), 14s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 2AM (local time) - 20ft (6.0m), 15s period, WSW swell with 14,386 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 11PM (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 Tuesday (Jul 21) at 11PM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.1m and 16s. 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 6.0m 15s and forecast to arrive on Monday (Jul 27) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Sunday (Jul 26) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 21st Jul) | 8ft (2.5m) 13s |
| Best Surf | 8AM (Mon 27th Jul) | 16ft (5.0m) 14s |
| Most Powerful | 2AM (Mon 27th Jul) | 20ft (6.0m) 15s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s coming up for Cobblestones.
We’ve got a solid run of swell on the way, but it’s not all going to be clean. The first few days are a bit of a write-off with onshore winds and poor conditions, so you’ll want to hold out for Wednesday the 22nd. That’s when the magic kicks in. The water’s sitting at 67°F, which is a touch warmer than usual for this time of year – nice for a longer session.
Wednesday morning (22nd July) is a standout. The swell is 8ft from the SW with a long 16-second period, and the wind is light and cross-offshore from the ESE. That’s going to set up some clean, powerful lines at this exposed reef break. The combined energy is strong (4931), and the conditions are dialed for experienced surfers. Wednesday afternoon gets even bigger – 12ft from the SW, 14-second period, still cross-off, and the energy jumps to 5050. This is expert territory, but if you’ve got the skills, that afternoon session is the pick of the whole forecast.
Thursday the 23rd keeps it going. Morning has 8ft SW swell with offshore NE wind at 9 mph, nice and clean. Then Thursday afternoon goes glassy – NE wind drops to 3 mph, the swell holds at 8ft, and it’s dead calm. That’s a rare treat, and the waves will be smooth as butter.
Friday and Saturday (24th-25th) are smaller – around 5ft to 6ft – but still clean enough for a fun paddle. The crowd situation at Cobblestones can be an issue, as it’s sometimes busy, so get in early.
Sunday the 26th sees a jump in size again, but the period drops to 8 seconds on the morning – that’s short-period windswell, not as nice. The afternoon gets a better 12ft from the WSW with a 12-second period and cross-off wind, but the energy is huge (4490). Still, the wind is moderate, so it’s not the top pick.
Monday the 27th is for the brave only – 15ft SW swell with 13-second period, massive energy (7200), but the wind is a fresh 22 mph cross-off. That’s big, raw, and only for experts. After that, Tuesday and Wednesday the 28th-29th get messy with onshore winds and rain.
The end of the month and start of August is a mixed bag. Thursday the 30th through Friday the 31st is a total loss – strong onshore winds, storms, and poor conditions. But then Saturday the 1st of August swings back with a glassy morning – 10ft SW swell, 15-second period, no wind, and excellent conditions. That’s a late-game gem, but it’s far out, so keep an eye on it.
The best overall? Wednesday the 22nd afternoon and Thursday the 23rd afternoon. That’s your window for the best, cleanest, most powerful waves. Don’t sleep on it.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Very mild (max 16°C on Mon afternoon, min 11°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sat afternoon, min 10°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 | SW 14 | SW 12 | SW 14 | SW 13 | SW 13 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 13 | SW 13 | WSW 12 | WSW 12 | W 8 | WSW 12 | WSW 15 |
Wave Graph | |||||||||||||||||||||
2114 | 2155 | 2149 | 2775 | 2235 | 2574 | 2653 | 5050 | 4009 | 2756 | 1831 | 1164 | 772 | 700 | 838 | 1028 | 795 | 443 | 588 | 3253 | 14386 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off | off | glassy | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:33AM0.72m | 4:03AM0.78m | 4:52AM0.84m | 5:39AM0.90m | 6:21AM0.96m | 6:59AM1.00m | |||||||||||||||
Low Tide | 5:16PM0.50m | 4:28PM0.44m | 4:18PM0.38m | 4:25PM0.34m | 4:37PM0.32m | 4:52PM0.31m | 5:06PM0.31m | ||||||||||||||
7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | |
— | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | |
mm | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 15 | 14 | 14 | 14 | 16 | 14 | 11 | 14 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 16 |
Feels °C | 10 | 10 | 10 | 11 | 9 | 10 | 11 | 13 | 10 | 7 | 12 | 10 | 9 | 11 | 11 | 10 | 10 | 12 | 10 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 14 | SW 12 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 13 | SW 13 | WSW 12 | WSW 12 | NNW 7 | SW 15 | — |
2114 | 2155 | 2149 | 2775 | 2235 | 2574 | 2278 | 5050 | 4009 | 2756 | 1831 | 1164 | 772 | 700 | 838 | 1028 | 795 | 443 | 176 | 1237 | — | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | S 18 | — | S 17 | WSW 18 | S 16 | SW 16 | — | — | W 20 | NNE 5 | WSW 17 | WSW 16 | W 16 | WSW 15 | SW 18 | SW 17 | SW 15 | SW 15 | N 6 | — |
40 | 6 | — | 6 | 31 | 5 | 2653 | — | — | 7 | 8 | 57 | 87 | 126 | 167 | 108 | 175 | 344 | 551 | 39 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 18 | — | — | — | — | — | WSW 13 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 31 | — | — | — | — | — | 186 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNE 5 | N 5 | N 5 | N 5 | N 4 | N 6 | NNW 6 | W 8 | WSW 12 | WSW 15 |
— | — | — | — | — | — | — | — | — | — | — | 5 | 22 | 27 | 21 | 32 | 103 | 305 | 588 | 3253 | 14386 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 35 | 89 | 20 | 1 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 44 | 0 | 0 | 44 | 44 | 44 | 44 | 86 | 86 |
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.










