Surf Forecasts:
Windy Harbour surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 2AM (local time) - 15ft (4.5m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 2PM (local time) - 16ft (5.0m), 16s period, SW swell with 12,001 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 2AM (local time) - 15ft (4.5m), 15s 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 Thursday (Aug 13) at 2AM. The primary swell is predicted to be 4.5m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Windy Harbour in the next 16 days are 5.0m 16s and forecast to arrive on Tuesday (Aug 18) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 13th Aug) | 15ft (4.5m) 15s |
| Best Surf | 2AM (Thu 13th Aug) | 15ft (4.5m) 15s |
| Most Powerful | 2PM (Tue 18th Aug) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Windy Harbour over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Mon afternoon. Warm (max 22°C on Sun afternoon, min 12°C on Mon afternoon). Winds increasing (light winds from the ENE on Sat night, strong winds from the W by Mon afternoon). | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 15 | SW 17 | WSW 14 | SW 15 | SW 15 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 8651 | 10901 | 10676 | 8302 | 6708 | 4851 | 4009 | 3082 | 2504 | 4327 | 4193 | 3673 | 3241 | 4541 | 8880 | 10737 | 8982 | 11248 | 6693 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-off | off | on | off | off | cross | off | off | cross-off | off | cross-off | cross | cross-on | cross | cross-off | cross-off |
High Tide | 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 | 10:13AM0.55m | 1:02AM0.71m | 1:28AM0.74m | |||||||
Low Tide | 3:28AM0.47m | 7:06PM0.31m | 4:29AM0.46m | 7:12PM0.39m | 5:22AM0.47m | 6:50PM0.45m | 6:15AM0.50m | 5:49PM0.45m | 7:34AM0.54m | 4:58PM0.40m | 4:41PM0.32m | ||||||||
 |  |  | | | |  | | | | | | |  | |  |  | | | |
 | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — |
 | 5:42 | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 12 | 3 | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 14 | 16 | 15 | 17 | 19 | 17 | 19 | 22 | 17 | 16 | 13 | 13 | 14 | 14 | 14 |
Feels °C | 11 | 12 | 11 | 12 | 12 | 13 | 14 | 13 | 15 | 16 | 14 | 17 | 13 | 11 | 3 | 4 | 9 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 15 | SW 17 | ESE 8 | SW 15 | SW 15 | SW 16 | SW 15 |
| kJ | 8651 | 10901 | 10676 | 8302 | 6708 | 4851 | 4009 | 3082 | 2504 | 4327 | 4193 | 3673 | 3241 | 4541 | 11 | 10737 | 8982 | 11248 | 6693 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 26 | SW 24 | SSW 21 | SW 19 | ESE 7 | — | SW 16 | WSW 18 | — | SSW 15 |
| kJ | — | — | — | — | — | — | — | — | — | 13 | 141 | 799 | 2140 | 10 | — | 2067 | 2754 | — | 169 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | E 6 | E 6 | E 6 | — | — | E 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 11 | 18 | 30 | — | — | 18 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNW 4 | — | — | NNE 4 | ENE 6 | N 3 | WNW 8 | WSW 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 15 | — | — | 23 | 32 | 5 | 574 | 8880 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 62 | 62 | 62 | 62 | 62 | 121 | 25 | 19 | 80 | 19 | 25 | 25 | 0 | 1600 | 541 | 256 | 62 | 62 | 85 |
Best forecast wave conditions in Far South of Western Australia | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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