Surf Forecasts:
Windy Harbour surf forecast from 17 Sep 2026:
- Best quality surf: Saturday 19 Sep, 8PM (local time) - 15ft (4.5m), 12s period, WSW swell with cross-shore winds.
- Most powerful swell: Saturday 19 Sep, 2PM (local time) - 18ft (5.5m), 12s period, WSW swell with 8,930 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 2AM (local time) - 5ft (1.5m), 12s period with SW 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 Friday (Sep 18) at 2AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 0.9m and 16s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Windy Harbour in the next 16 days are 5.5m 12s and forecast to arrive on Saturday (Sep 19) 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 1.0m 5s period and expected on Thursday (Sep 17) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 18th Sep) | 5ft (1.5m) 12s |
| Best Surf | 8PM (Sat 19th Sep) | 15ft (4.5m) 12s |
| Most Powerful | 2PM (Sat 19th Sep) | 18ft (5.5m) 12s |
Table - best surf conditions forecast for Windy Harbour over the next 16 days.
Short Range ForecastLight rain (total 9mm), mostly falling on Sat morning. Warm (max 24°C on Fri afternoon, min 13°C on Thu night). Winds increasing (calm on Fri afternoon, near gales from the WNW by Sat morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Mon afternoon, min 10°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||
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 12 | SW 17 | SW 17 | SW 16 | W 12 | WSW 12 | SW 11 | SW 13 | SSW 16 | SSW 15 | SW 15 | SW 15 | SW 14 | SSW 15 | SSW 14 | SW 13 | SW 13 | SW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 767 | 656 | 2293 | 1904 | 2325 | 8606 | 7531 | 3097 | 3863 | 7062 | 7448 | 5581 | 4235 | 2834 | 4033 | 4554 | 2955 | 1977 | 1415 | 1082 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | cross-off | off | cross-off | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross | on | cross-on | cross-on | cross-off | on | cross-on | off |
High Tide | 00:50AM0.77m | 1:26AM0.75m | 2:41AM0.71m | 6:38AM0.73m | 7:29AM0.75m | 10:42PM0.55m | 8:12AM0.77m | 10:07PM0.58m | ||||||||||||
Low Tide | 3:47PM0.23m | 4:00PM0.22m | 4:06PM0.23m | 4:03PM0.25m | 3:51PM0.26m | 3:41PM0.27m | 1:31AM0.52m | 3:42PM0.27m | 2:29AM0.46m | |||||||||||
 |  | |  |  |  |  |  | |  |  | | | | | | | | | | |
 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — |
mm | — | — | — | — | 1 | 6 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 18 | 22 | 24 | 17 | 14 | 16 | 16 | 14 | 14 | 13 | 15 | 16 | 16 | 14 | 14 | 13 | 15 | 15 | 14 |
Feels °C | 18 | 15 | 21 | 20 | 13 | 4 | 9 | 10 | 10 | 10 | 9 | 11 | 12 | 13 | 11 | 10 | 9 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 17 | SW 17 | SW 16 | SW 15 | — | SW 13 | SW 13 | SSW 16 | SSW 15 | SW 15 | SW 15 | SW 14 | SSW 15 | SSW 14 | SW 13 | SW 13 | SW 12 | SW 12 |
| kJ | 767 | 656 | 2293 | 1904 | 2325 | 1212 | — | 340 | 3863 | 7062 | 7448 | 5581 | 4235 | 2834 | 4033 | 4554 | 2955 | 1977 | 1415 | 1082 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 16 | ESE 8 | W 12 | ESE 7 | — | — | SSW 16 | — | — | — | — | — | — | — | — | — | E 6 | SSW 18 | SSW 16 |
| kJ | 209 | 386 | 11 | 528 | 5 | — | — | 276 | — | — | — | — | — | — | — | — | — | 7 | 31 | 441 |
Swell 3 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 18 | SSW 18 | ESE 5 |
| kJ | 24 | 11 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 31 | 31 | 4 |
Wind waves Height (m) Direction Period (s) | W 4 | WNW 5 | — | — | WNW 8 | W 12 | WSW 12 | SW 11 | — | — | — | — | W 4 | — | — | — | E 6 | — | E 6 | — |
| kJ | 20 | 28 | — | — | 753 | 8606 | 7531 | 3097 | — | — | — | — | 11 | — | — | — | 7 | — | 7 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 97 | 0 | 0 | 0 | 541 | 1456 | 1791 | 145 | 120 | 120 | 80 | 145 | 97 | 117 | 120 | 120 | 19 | 62 | 80 | 0 |
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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