Surf Forecasts:
The Window surf forecast from 24 Aug 2026:
- Best quality surf: Saturday 29 Aug, 2PM (local time) - 8ft (2.5m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 16ft (5.0m), 17s period, WSW swell with 14,111 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 2PM (local time) - 8ft (2.5m), 17s period with SW swell.
Best Forecast Surf Conditions for The Window this week:
The surf forecast for The Window over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 29) at 2PM. The primary swell is predicted to be 2.5m and 17s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Window in the next 16 days are 5.0m 17s and forecast to arrive on Wednesday (Aug 26) 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 1.1m 5s period and expected on Tuesday (Sep 01) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sat 29th Aug) | 8ft (2.5m) 17s |
| Best Surf | 2PM (Sat 29th Aug) | 8ft (2.5m) 17s |
| Most Powerful | 2PM (Wed 26th Aug) | 16ft (5.0m) 17s |
Table - best surf conditions forecast for The Window over the next 16 days.
The Lowdown
Alright, let me break it down for you. Looking at the next sixteen days, "The Window" is really the only spot worth talking about, and it’s a wild ride. The first few days are a total loss – no good surf on offer. We’ve got a gap of nothing recommended until Wednesday the 26th of August.
Wednesday the 26th of August brings a massive pulse of energy; the combined swell energy hits (13576). That’s huge. We’re talking a solid 15 ft of WSW groundswell with an 18 second period. That’s a long period groundswell, meaning serious power and long waits between sets. The wind is a light cross-shore, so the surface will be glassy. This is the standout of the whole stretch, even though the report calls it marginal. This is big, raw power for experts only. Anything over 8 ft is for experienced surfers, and this is pushing double that. The water temp feels pretty average for the time of year.
Thursday the 27th of August gets messy again. The morning is blown out with fresh cross-shore wind and lumpy conditions. By the afternoon, it cleans off but the swell drops a touch to 12 ft from the SW, and the wind goes cross-offshore. It’s rideable, but not as good as the day before.
Friday the 28th of August is cleaner with cross-offshore winds, but the swell backs off to around 8 ft in the morning and 6 ft in the afternoon. A smaller, cleaner day.
Saturday the 29th of August morning looks promising – clean with light offshore wind and a 6 ft SW swell at a very long 16 second period. That’s sweet for the reef. The afternoon turns ugly again with onshore wind.
From Sunday the 30th of August through early September, it is a real mixed bag. We get bumpy cross-onshore conditions with 10 ft WSW swell. The energy stays high, but the wind is never quite right.
The first week of September is rough. From the 1st to the 4th, we are dealing with onshore breezes and messy seas. By Thursday the 3rd and Friday the 4th of September, the wind cranks up to a strong breeze and everything gets blown to pieces.
Saturday the 5th of September has direct onshore wind, which kills any chance of clean waves.
The second week looks a bit more promising. Monday the 7th of September is lumpy, but Tuesday the 8th of September morning shows some hope. We get a clean cross-offshore breeze and 10 ft SW swell. It’s still a marginal call, but it’s the best in that later stretch.
The one session to circle is Wednesday the 26th of August morning. That’s the big, clean groundswell at The Window. Everything else is a gamble on the wind.
Rusty
Short Range ForecastModerate rain (total 18mm), heaviest on Wed night. Very mild (max 17°C on Tue morning, min 12°C on Wed night). Winds decreasing (strong winds from the NW on Tue morning, light winds from the SSW by Wed morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the SSE on Fri morning, calm by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
AM | 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 14 | WSW 13 | WSW 15 | WSW 18 | WSW 17 | WSW 16 | SW 15 | SW 14 | WSW 13 | WSW 12 | WSW 12 | SW 11 | SW 16 | SW 18 | SW 17 | WSW 16 | WSW 15 | WSW 16 | WSW 17 | WSW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2390 | 3113 | 6236 | 13576 | 13691 | 9557 | 6638 | 5020 | 2231 | 1197 | 769 | 455 | 1895 | 5591 | 6397 | 4312 | 3497 | 3331 | 3185 | 4065 | 3970 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-on | cross | on | cross-on | cross-off |
High Tide | 8:31AM0.71m | 9:03AM0.69m | 11:40PM0.34m | 9:34AM0.66m | 11:21PM0.37m | 10:03AM0.60m | 11:15PM0.42m | 10:30AM0.52m | 11:17PM0.48m | 10:51AM0.43m | 11:29PM0.54m | ||||||||||
Low Tide | 4:51PM0.09m | 5:03PM0.11m | 5:10PM0.14m | 2:00AM0.33m | 5:12PM0.19m | 3:12AM0.32m | 5:11PM0.23m | 4:16AM0.31m | 5:04PM0.27m | 5:23AM0.30m | 4:46PM0.30m | ||||||||||
 | |  |  | |  |  |  |  | | | | | | |  | |  | | | | |
 | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — |
 | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — |
mm | 1 | 2 | 3 | 1 | 1 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 17 | 15 | 14 | 12 | 14 | 15 | 14 | 14 | 15 | 13 | 16 | 19 | 17 | 18 | 17 | 17 | 17 | 17 | 16 |
Feels °C | 10 | 10 | 12 | 13 | 9 | 8 | 7 | 7 | 8 | 7 | 9 | 8 | 13 | 17 | 15 | 17 | 15 | 17 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 14 | WSW 13 | WSW 15 | WSW 18 | WSW 17 | WSW 16 | SW 15 | SW 14 | WSW 13 | WSW 12 | WSW 12 | SW 11 | SW 16 | SW 18 | SW 17 | WSW 16 | WSW 15 | WSW 16 | WSW 17 | WSW 16 | SW 16 |
| kJ | 2390 | 3113 | 6236 | 13576 | 13691 | 9557 | 6638 | 5020 | 2231 | 1197 | 769 | 455 | 1895 | 5591 | 6397 | 4312 | 3497 | 3331 | 3185 | 4065 | 3970 |
Swell 2 Height (m) Direction Period (s) | W 8 | — | WSW 22 | — | — | — | — | — | W 21 | SW 20 | SW 20 | SW 18 | SW 19 | — | — | — | — | — | — | — | — |
| kJ | 10 | — | 363 | — | — | — | — | — | 9 | 16 | 98 | 260 | 1323 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 25 | WSW 24 | WSW 22 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 25 | 55 | 308 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 7 | — | — | — | — | — | — | S 7 | S 7 | S 6 | SSE 6 | — | — | — | — | — | — | W 5 | — | S 5 |
| kJ | 199 | 416 | — | — | — | — | — | — | 152 | 148 | 176 | 73 | — | — | — | — | — | — | 50 | — | 54 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 231 | 260 | 213 | 3 | 48 | 1688 | 1329 | 1688 | 552 | 631 | 55 | 3 | 3 | 0 | 0 | 0 | 15 | 3 | 15 | 15 | 2 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
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 The Window 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 The Window Surf forecast
The above surf forecast table for The Window provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Window can be found by selecting the local surf guide option on the grey menu. Our The Window 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 (The Window) 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 The Window 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.
The Window is 74 km (46 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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