Surf Forecasts:
Windy Harbour surf forecast from 10 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 2AM (local time) - 21ft (6.5m), 16s period, SSW swell with cross-onshore winds.
- Most powerful swell: Tuesday 11 Aug, 5AM (local time) - 21ft (6.5m), 16s period, SSW swell with 21,403 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 2AM (local time) - 21ft (6.5m), 16s period with SSW swell.
Best Forecast Surf Conditions for Windy Harbour this week:
The surf forecast for Windy Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 2AM. The primary swell is predicted to be 6.5m and 16s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Windy Harbour in the next 16 days are 6.5m 16s and forecast to arrive on Tuesday (Aug 11) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 11th Aug) | 21ft (6.5m) 16s |
| Best Surf | 2AM (Tue 11th Aug) | 21ft (6.5m) 16s |
| Most Powerful | 5AM (Tue 11th Aug) | 21ft (6.5m) 16s |
Table - best surf conditions forecast for Windy Harbour over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Very mild (max 15°C on Tue night, min 10°C on Mon night). Winds decreasing (fresh winds from the SSW on Mon night, light winds from the WNW by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 21137 | 18805 | 15445 | 10708 | 9004 | 8152 | 7696 | 10595 | 11792 | 8610 | 6411 | 4918 | 4009 | 3126 | 2542 | 2693 | 4572 | 4447 | 3009 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross-off | off | on | off | off | cross-off | off | cross-off | cross-off | off |
High Tide | 9:56AM1.03m | 10:37AM1.00m | 1:03AM0.49m | 11:15AM0.93m | 00:52AM0.51m | 11:46AM0.83m | 00:47AM0.56m | 12:02PM0.72m | 00:46AM0.62m | 11:45AM0.61m | 00:49AM0.67m | ||||||||
Low Tide | 6:24PM0.16m | 6:48PM0.22m | 3:28AM0.47m | 7:06PM0.31m | 4:29AM0.46m | 7:12PM0.39m | 5:22AM0.47m | 6:50PM0.45m | 6:15AM0.50m | 5:49PM0.45m | |||||||||
 |  |  |  | | |  | | | | | | | | | | | | | |
 | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — |
 | 5:39 | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — |
mm | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 14 | 14 | 15 | 14 | 14 | 14 | 13 | 14 | 14 | 14 | 17 | 15 | 18 | 19 | 17 | 19 | 22 | 19 |
Feels °C | 4 | 7 | 8 | 10 | 10 | 10 | 11 | 11 | 11 | 13 | 11 | 14 | 14 | 14 | 15 | 15 | 14 | 18 | 13 |
Swell 1 Height (m) Direction Period (s) | — | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 |
| kJ | — | 18805 | 15445 | 10708 | 9004 | 8152 | 7696 | 10595 | 11792 | 8610 | 6411 | 4918 | 4009 | 3126 | 2542 | 2693 | 4572 | 4447 | 3009 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 24 | SW 21 | — | — | — | — | — | W 20 | — | ESE 10 | — | — | SSW 24 | E 6 | SW 19 |
| kJ | — | — | — | — | 22 | 117 | — | — | — | — | — | 30 | — | 9 | — | — | 55 | 12 | 2883 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 26 | — | — | E 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | — | — | 11 |
Wind waves Height (m) Direction Period (s) | SSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 6 | — | NNE 3 |
| kJ | 21137 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 22 | — | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 174 | 317 | 370 | 145 | 145 | 145 | 62 | 62 | 62 | 62 | 62 | 85 | 25 | 19 | 0 | 19 | 25 | 25 | 1600 |
Best forecast wave conditions in Far South of Western Australia | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Windy Harbour surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Windy Harbour Surf forecast
The above surf forecast table for Windy Harbour provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Windy Harbour can be found by selecting the local surf guide option on the grey menu. Our Windy Harbour 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 (Windy Harbour) 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 Windy Harbour 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.
Windy Harbour is 168 km (104 miles) from Bunbury. If you plan a holiday in Far South of Western Australia, 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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