Surf Forecasts:
Cobblestones surf forecast from 13 Jul 2026:
- Best quality surf: Saturday 18 Jul, 11AM (local time) - 18ft (5.5m), 16s period, WSW swell with onshore winds.
- Most powerful swell: Saturday 18 Jul, 11AM (local time) - 18ft (5.5m), 16s period, WSW swell with 15,590 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 8PM (local time) - 11ft (3.5m), 15s 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 Monday (Jul 13) at 8PM. The primary swell is predicted to be 3.5m and 15s period. The wind is predicted to be glassy 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 (Jul 18) at 11AM. 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 Wednesday (Jul 15) at 5PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 13th Jul) | 11ft (3.5m) 15s |
| Best Surf | 11AM (Sat 18th Jul) | 18ft (5.5m) 16s |
| Most Powerful | 11AM (Sat 18th Jul) | 18ft (5.5m) 16s |
Table - best surf conditions forecast for Cobblestones over the next 16 days.
Alright, this is Rusty. Let's get into it.
The outlook ahead is a bit of a mixed bag. We’ve got a serious pulse of SW groundswell on the way, but the wind is going to be the main character in this story – and it’s not always a friendly one. The first real opportunity to get wet doesn't come until the 14th, so don't rush it.
The standout for the whole period is Cobblestones (reef) on Tuesday morning, the 14th of July. Early doors, we’re looking at a clean 10ft SW swell, with a solid 15-second period – that’s proper groundswell, full of energy. The wind is a light cross-offshore breeze from the NE at 6 mph, which is going to have those waves looking like glass. The water is sitting at 66°, which is pretty much bang on average for this time of year. The energy is huge, reading 4309, so this is serious stuff. Over 8ft, so it’s one for the experienced crew only. The crowd factor is listed as "sometimes", so you might get a few out, but with that quality, it’s worth jostling for a wave.
The rest of the week is a lottery. Tuesday afternoon repeats the same 10ft, 14-second swell and clean cross-off wind, so that’s a solid second session. Wednesday the 15th sees a monster 25 mph NNE wind, which is going to be howling. The swell is still 10ft with a 17-second period, but the wind is so strong it’s just not going to be clean fun. That’s a day to stay home.
Thursday the 16th is a write-off, with rain and lumpy cross-onshore winds. Through the weekend, conditions get ugly. Saturday the 18th sees a massive 18ft swell at 16 seconds, but with 19 mph onshore winds, it’s just a washing machine – a heavy, dangerous one at that. By Sunday the 19th, the swell drops to 12ft but the wind is still messy.
The next real glimmer is on Friday the 24th of July. A light, cross-off breeze from the NNE at 9 mph and a 12ft SW swell at 14 seconds. The energy reading is 6846, so it’s going to be powerful. That’s a long way out, so it’s promising but not a sure thing. The period is a touch over 11 seconds, so it’s a good groundswell, but this reef is going to handle it well.
The final week is mostly blown out with strong onshore winds and rain, apart from that Friday window. The 23rd has some potential with a 10ft, 17-second swell, but the wind is directly onshore, so it’s unlikely to be great.
So, to be honest, the 14th and 15th of July are your best bets for a proper session. The 24th is a gamble, but a good one if the forecast holds. A lot of the middle days are just too rugged or messy. But that’s winter for you – when it’s on, it’s on.
- Rusty
Short Range ForecastHeavy rain (total 31mm), heaviest during Thu morning. Very mild (max 19°C on Wed afternoon, min 11°C on Tue morning). Winds increasing (calm on Mon night, strong winds from the NNE by Wed morning). | Days 5-7 Weather SummaryHeavy rain (total 23mm), heaviest during Thu afternoon. Very mild (max 17°C on Fri morning, min 14°C on Fri night). Winds increasing (light winds from the WSW on Thu night, near gales from the W by Fri night). | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 17 | SW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 8 | WSW 12 | WSW 16 | WSW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5731 | 4491 | 4309 | 3777 | 2971 | 4536 | 3784 | 3552 | 6217 | 3516 | 2440 | 1435 | 1905 | 11449 | 15590 | 11244 | 6885 | 4216 | 2937 | 1762 | 1193 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross | cross-on | cross-on | on | on | on | cross-on | cross | cross | on |
High Tide | 9:06AM1.14m | 9:44AM1.10m | 10:17AM1.03m | 10:42AM0.93m | 10:50AM0.82m | 10:19AM0.72m | 7:20AM0.67m | ||||||||||||||
Low Tide | 5:59PM0.24m | 6:39PM0.27m | 7:15PM0.32m | 7:45PM0.38m | 8:00PM0.45m | 7:43PM0.50m | 6:40PM0.52m | ||||||||||||||
 |  |  | | |  | |  |  |  |  | |  |  | | | | | | | | |
 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 |
 | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | 5:31 |
mm | — | — | — | — | — | — | — | 12 | 19 | 10 | — | 1 | 2 | 6 | — | 1 | 3 | — | — | 2 | 18 |
Temp °C | 14 | 15 | 13 | 15 | 15 | 18 | 19 | 19 | 17 | 16 | 16 | 17 | 17 | 16 | 14 | 15 | 15 | 15 | 15 | 16 | 13 |
Feels °C | 12 | 14 | 11 | 12 | 12 | 11 | 12 | 15 | 12 | 14 | 14 | 11 | 9 | 4 | 5 | 9 | 8 | 11 | 10 | 9 | 4 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 17 | SW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 24 | — | WSW 16 | WSW 16 | WSW 15 | SW 14 | SW 13 | SW 13 | WSW 8 |
| kJ | 5731 | 4491 | 4309 | 3777 | 2971 | 4536 | 3784 | 3552 | 6217 | 3516 | 2440 | 1435 | 11 | — | 15590 | 11244 | 6885 | 4216 | 2937 | 1762 | 1193 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NW 14 | NW 13 | NW 13 | — | WNW 13 | NNW 7 | WNW 12 | S 11 | SW 24 | — | — | — | — | — | — | — | S 9 |
| kJ | — | — | — | — | 8 | 7 | 7 | — | 16 | 197 | 14 | 3 | 22 | — | — | — | — | — | — | — | 28 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | WNW 13 | — | — | — | — | — | — | — | — | — | — | S 18 |
| kJ | — | — | — | — | — | — | — | — | — | 16 | — | — | — | — | — | — | — | — | — | — | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 4 | N 7 | NNW 7 | NW 7 | — | — | NNW 7 | WNW 7 | W 8 | WSW 12 | — | — | — | — | — | — | NW 7 |
| kJ | — | — | — | — | 15 | 427 | 571 | 467 | — | — | 99 | 574 | 1905 | 11449 | — | — | — | — | — | — | 231 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 0 | 44 | 1106 | 216 | 159 | 10 | 20 | 2 | 201 | 251 | 1340 | 688 | 251 | 38 | 35 | 53 | 159 | 642 |
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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