
Surf Forecasts:
Windy Harbour surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 2AM (local time) - 15ft (4.5m), 15s period, WSW swell with cross-offshore winds.
- Most powerful swell: Sunday 19 Jul, 2AM (local time) - 15ft (4.5m), 15s period, WSW swell with 7,733 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 2AM (local time) - 15ft (4.5m), 15s period with WSW 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 Sunday (Jul 19) at 2AM. The primary swell is predicted to be 4.5m and 15s period with a secondary swell of 4.0m and 15s. 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 4.5m 15s and forecast to arrive on Sunday (Jul 19) 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 1.2m 5s period and expected on Friday (Jul 24) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 19th Jul) | 15ft (4.5m) 15s |
| Best Surf | 2AM (Sun 19th Jul) | 15ft (4.5m) 15s |
| Most Powerful | 2AM (Sun 19th Jul) | 15ft (4.5m) 15s |
Table - best surf conditions forecast for Windy Harbour over the next 16 days.
Short Range ForecastModerate rain (total 11mm), heaviest on Sun morning. Very mild (max 15°C on Sat night, min 13°C on Sun morning). Winds decreasing (fresh winds from the W on Sat night, light winds from the NW by Sun night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | WSW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 14 | SW 12 | SW 14 | SW 13 | SSW 13 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||
7733 | 4458 | 2415 | 2271 | 1333 | 2424 | 2251 | 2762 | 2415 | 3697 | 5121 | 5931 | 4107 | 2323 | 1708 | 1412 | 1243 | 1220 | 928 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | on | glassy | cross-on | cross-off | off | glassy | off | cross-off | cross-off | cross-off |
High Tide | 11:12AM0.70m | 8:05AM0.71m | 7:06AM0.75m | 6:18AM0.81m | 6:38AM0.86m | 7:10AM0.91m | |||||||||||||
Low Tide | 9:03PM0.51m | 7:12PM0.54m | 5:50PM0.47m | 5:40PM0.39m | 5:55PM0.33m | 6:13PM0.29m | 6:23PM0.29m | ||||||||||||
— | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | |
5:23 | — | 5:24 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | |
mm | — | 5 | 1 | 1 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 15 | 14 | 14 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 12 | 16 | 15 | 14 | 17 | 15 |
Feels °C | 7 | 10 | 11 | 11 | 9 | 9 | 10 | 10 | 9 | 11 | 12 | 12 | 12 | 8 | 14 | 13 | 10 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 14 | SW 12 | SW 14 | SW 13 | SSW 13 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 |
6767 | 4458 | 2415 | 2271 | 1333 | 2424 | 2251 | 2762 | 2415 | 3697 | 5121 | 5931 | 4107 | 2323 | 1708 | 1412 | 1243 | 1220 | 928 | |
Swell 2 Height (m) Direction Period (s) | — | WSW 9 | SSW 14 | SW 13 | SSW 14 | SE 18 | SE 17 | SE 17 | SE 16 | SE 16 | SSW 16 | — | — | SE 14 | WSW 18 | WSW 18 | WSW 16 | WSW 16 | WSW 15 |
— | 539 | 1091 | 87 | 672 | 12 | 12 | 11 | 10 | 10 | 1656 | — | — | 8 | 31 | 30 | 52 | 51 | 142 | |
Swell 3 Height (m) Direction Period (s) | — | — | SE 19 | S 18 | — | — | — | — | — | — | — | — | — | — | — | — | SE 13 | SSE 10 | — |
— | — | 15 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 22 | — | |
Wind waves Height (m) Direction Period (s) | WSW 15 | — | — | — | — | WSW 9 | — | — | — | — | — | — | — | — | — | — | NW 4 | WNW 4 | W 6 |
7733 | — | — | — | — | 450 | — | — | — | — | — | — | — | — | — | — | 16 | 26 | 345 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 121 | 62 | 62 | 19 | 62 | 121 | 120 | 154 | 159 | 120 | 100 | 80 | 25 | 0 | 0 | 0 | 62 | 62 | 62 |
Best forecast wave conditions in Far South of Western Australia | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










